1969

VICTORIA

STATE ELECTRICITY COMMISSION OF VICTORIA

FIFTIETH ANNUAL REPORT

FOR THE

FINANCIAL YEAR ENDED 30TH JUNE, 1969

TOGETHER WITH

APPENDICES

PRESENTED TO PARLIAMENT PURSUANT TO SECTION 82 (b) OF STATE ELECTRICITY COMMISSION ACT No. 6377.

By Authority: A. C. BROOKS, GOVERNMENT PRINTBR., MELBOURNI!.

No. 11.-10560/69.-70 cents

State Electricity Corn miss ion of Victoria

50th Annual Report 1968-69

Chairman and General Manager W. H. Connolly, C.B.E., D.Eng.(Hon.), B.E.E., B.Com ., F.I.E.Aust., M.I.E.E.E. (U.S.A.)

Commissioners T. P. Scott, F.A.I.I. B. J. Callinan, D.S.O., M.C., B.C.E., F.I.C.E., F.I.E.Aust., F.A.P.I. C. R. Darvall, C.B.E., F.A.S.A.

Deputy General Manager N. R. White, M.E., F.I.E.Aust.

Assistant General Manager K. L. Murray, F.I.E.Aust.

Assistant General Manager J. C. Trethowan, B.Com., A.A.S.A. (Administration)

Assistant General Manager G. Paterson, B.C.E., F.I.E.Aust., A.M.A.S.C.E. (Generation and Transmission)

Assistant General Manager R. G. Chapman, B.C.E., M.I.E.Aust., M.I.C.E. (Marketing and Distribution)

Secretary F. P. Chipperfield, B.Com., J.P.

Head Office 15 William Street, Melbourne, 3000

Contents

Page Number Summary of Operations 4 Financial Review 7 Revenue Account 11 Balance Sheet 12 Extensions to the State Generating System 14 National Consultative Committee on Nuclear Power 16 Construction 17 Future of Yallourn Township 18 Metropolitan Municipal Electricity Distribution Systems 20 New Legislation 21 Electricity Production 22 Brown Coal Production 23 Briquette Production and Sales . 24 Electricity Supply 26 Tramways - Ballarat and Bendigo 29 Personnel 31 Public Safety and Other Regulatory Responsibilities 35 Commissioners 37 Staff 39 Brief Pictorial History 43

STATISTICS Ten Years of Financial Statistics 44 Ten Years of General Statistics . 46 Revenue Account Supplementary Information 48 Balance Sheet Supplementary Information 51 Capacity of Generators and Boilers Installed 55

Generation of Electricity HH 58 Load Factors and Fuel Used S.E.C. Power Stations 60 Brown Coal and Briquette Production 62 Transmission and Distribution Systems 64 Victorian Electricity Supply Undertakings- Summary of Consumer and Sales Statistics 65 Consumer Statistics 66 Electricity Sales and Income 67 Metropolitan and Country Electricity Supply Undertakings (Municipal and Private) 68 Hazelwood Power Station - in back­ Statistical Summary 69 ground Morwell Open Cut on left, Schedule of Standard Tariffs 70 Morwell Power Station and Briquette Factory on right. Map of Victorian Electricity Supply System Back Cover Summary of Operations

FINANCIAL 1968/69 1967/68 $ $ Total income 216,683,053 198,332,239 Balance of income used for capital works 3,199,849 2,455,180

Fixed assets- at 30th June cost 1,270,639,649 1,184,270,818 less depreciation 329,161,724 293,942,911

$941,477,925 $890,327,907

ELECTRICITY PRODUCTION AND SALES

Maximum coincident demand (1969 winter compared with 1968 winter) MW 2,38711 2,429 (22/7/69) (2/7/68)

Electricity generated (incl. purchases}* GWh 12,867.7 11,935.0

Electricity sales (incl. interchange to New South Wales} GWh 10,554.4 9,716.3

Number of consumers (excl. bulk supplies} at 30th June 981,535 944,434

Average consumption per domestic consumer kWh 3,750 3,474 per head of population {Victoria) kWh 2,910 2,796

11 The decrease is due to the commissioning of the 150 MW power station of Alcoa of Australia Pty. Ltd. Including Alcoa, the maximum coincident demand was 2,489 MW. *Includes energy from Snowy Mountains scheme and interchange from New South Wales. 1 GWh (gigawatt-hour} 1,000,000 kWh (kilowatt-hours).

4 50th Annual Report for year ended 30th June 1969

The Hon. J. C. M. Balfour, M.L.A., Minister for Fuel and Power, Melbourne.

Sir, In conformity with the provisions of Section 82 (b) of the State Electricity Commission Act No. 6377, we have the honour to present the 50th Annual Report of the Commission covering the financial year ended 30th June, 1969, together with balance sheet and revenue account.

Jubilee of the Commission lt was heartening that the Commission's Jubilee Year was a most successful one. Income for the year was $216,683,053 and expenditure $213,483,204, leaving a balance of income to be used for capital works of $3,199,849. Excluding the reduction in the large requirements of Alcoa of Australia Pty. Ltd. which has completed its own power station at Anglesea, electricity sales increased by 8.4% (page 26) exceeding the long term average despite increasing competition from other sources of energy. In addition, sales of briquettes reached the highest level yet achieved (page 24). During the year 37,101 additional consumers, including 1,895 farms, were connected to the Commission's distribution system. The long term objective of electrification of the State is virtually completed. The construction programme is proceeding to schedule. The sixth 200 MW generating set came into service at Hazelwood Power Station, raising its capacity to 1,200 MW. A further 200 MW set will be commissioned by the end of 1969 and another by the end of 1970 thereby completing the station. The construction of Yallourn 'W' Power Station is proceeding to programme and one 350 MW set is due to come into service early in 1972 and the other in 1973. Extension and augmentation of the State transmission system is continuing. The first 500 kV line between Hazelwood and Keilor at present operating at 220 kV wi 11 operate at 500 kV in 1970.

Since the first Electricity Commissioners were appointed in 1919 the Commission has grown into the largest electricity supply authority in Australia, serving nearly one and a quarter million customers and with nearly $1,300 million invested in its capital assets. With the development of the State's resources of brown coal and hydro power Victoria has overcome the handicap which its industrial development had faced for many years through being too dependent on imported fuels for its energy requirements. Through sound long-term planning the State's electricity generation and distribution system has been progressively developed to meet the ever-growing demand for electricity, and has provided a great incentive to industrial expansion and contributed in a large degree to the development of Victoria.

History of the Commission The development of the Commission has been closely interwoven with the economic and political development of the State over a most important period in its history and certainly at a time when there has been unparalleled progress. lt seemed appropriate therefore that the history of the Commission should be recorded at this time.

5 Accordingly, Mr. N. Goss, then a senior executive of a leading publishing company, was engaged to direct this task and Mr. C. Edwards, a distinguished journalist, was later engaged to write the history. The Commissioners decided that these fifty years should be recorded objectively. While arranging for the author to have access to all Commission records and any guidance he might require, the Commissioners have not sought to impose any policy restrictions on the content, treatment, or form of presentation. These, therefore, will be essentially the author's. The Commission was fortunate to have available in a consulting capacity in relation to this history the services of Mr. W. J. Price, former Deputy General Manager, who retired in 1964 after having served in a number of the most senior administrative positions in the Commission dating back almost to its inception. Mr. Price is in a unique position of having had personal contact with Commissioners and senior officers throughout the 50 years of the Commission's history. The history will be published towards the end of 1969.

Jubilee Dinner To mark the 50th anniversary of the first meeting of the Commission, a Jubilee Dinner was held on 24th March, 1969. The Commission was honoured to have amongst the many distinguished guests, the Governor of Victoria, His Excellency Major-General Sir Rohan Delacombe, K.C.M.G., K.B.E., C.B., D.S.O., K.St.J., the Premier, the Hon. Sir Henry Bolte, K.C.M.G., M.l.A., and yourself, together with several former Ministers of the Commission, members of the Government and representatives of the Parliament of Victoria. Also present were representatives of electricity and briquette consumers, contractors to the Commission, financial institutions, other supply authorities both within the State and from other States and various organisations associated with the Commission's activities including trade and employee organisations. In addition, a number of the longest serving personnel of the Commission were present. The Commission's only regret on the occasion was that because of space limitations the numbers that could be invited from each of these latter categories had to be restricted. However, the function did permit the bringing together of a very wide and representative gathering to suitably mark the occasion.

Expo Electric '69 In October, 1969, Expo Electric '69- one of the most ambitious exhibitions held in Australia - will be sponsored by the Commission. Electrical manufacturers from Europe, North America and Japan are to join with the Australian electrical industry in this project. With the theme "Tomorrow is Electric", Expo will show the many applications of electricity, demonstrate the technological advances of recent years and preview some of the foreseeable benefits which progress in electrical and electronic technology will bring. The Commission expects that this will be an event of outstanding interest to the general community.

A brief pictorial history of the Commission has been appended to this 50th Annual Report for the interest of readers.

6 Financial Review

The operating result improved greatly on the previous year. The balance of income used for capital works increased by $744,669 on 1967/68 to $3,199,849. Excluding supply to Alcoa of Australia Pty. Ltd. for its smelter, which was transferred progressively over the second half of the year to the company's own power station at Anglesea, sales of electricity within Victoria increased by 8.4%. The comparable sales growth in 1967/68 was 6.0%.

The operating result was obtained after making an initial provision of $6,000,000 for accruing long service leave and retiring allowances. lt has been the Commission practice to include these benefits in the expenditure accounts only as they have been paid. At the 30th June, 1969, there was an accrued liability of about $21m for these entitlements.

Income Operating income from all sources increased by $18.35m or 9.3% to $216.68m. Electricity income increased by $17.53m, and income from briquettes and brown coal by $0.82m.

The improvement in electricity income included $14.53m (7.9%) from growth of electricity sales, and $3.00m from the full year effect of higher tariffs introduced in November, 1967.

Domesti c electri city

INCOME

EXPENDITURE

7 Electricity Sales Annual Growth 1968/69 1967/68 1968/ 69 1967/ 68 ELECTRICITY SALES 1944 - 1969 GWh GWh % % GWh 3,014 2,693 Domestic supplies 11.9 5.1 11 ,000 935 831 Commercial supplies .. 12.6 8.5 3,189 3,222 Industrial supplies - 1.0* 6.8 2,470 2,300 Bulk supplies .. 7.4 5.0 9,894 9,341 Total Victorian sales 5.9* 5.7 *Growth of 5.6% and 8.4% respectively if Alcoa supply is excluded. Bulk supplies to the eleven metropolitan municipal undertakings increased by 7.4%. Sales by these authorities increased by 10.4% to domestic, 10.9% to commercial and 2.7% to industrial consumers. Briquette sales increased to a record level in all three classes of supply.

Briquette Sales 1968/69 1967/ 68 Increase tons 000 tons 000 tons 000 % Domestic users 543 501 42 8.3 Industrial and commercial users 565 540 25 4.5 Gas and Fuel Corporation . 226 208 18 9.1

Total (excl. consumption in power stations) 1,334 1,249 85 6.8

1944 1949 1954 1959 1964 1969

Hazelwood Power Station - exterior at night. The last of the eight 450 ft. high chimneys is now under construction.

8 Expenditure Expenditure increased by $17.6m or 9.0% to $213.5m, but 3.1% is the result of the special provision for long service leave and retiring allowances. 1968/69 1967/68 Variation $m $m $m % Salaries, wages and employees' benefits 70.6 64.2 +6.4 +10.0 Interest 48.0 45.5 +2.5 +5.4 Depreciation 49.0 47.5 +1.5 +3.2 Materials, services, payroll tax, and other miscellan- eous expenditure 23.8 22.8 +1.0 +4.4 Electricity and fuel pur- chases 9.1 9.3 -0.2 1.7 Provision for accruing long service leave and retiring allowances 6.0 +6.0 Statutory transfers to Con- solidated Revenue of Victoria 7.0 6.6 +0.4 +5.7

213.5 195.9 +17.6 +9.0

Salaries, wages and employees' benefits increased by 10% over the year, but the average rate of pay increased by 10.5%, double the increases of the previous two years. The other increases are attributable to expansion of the business.

The annual payments to Commonwealth, State and municipal funds in the form of Commonwealth payroll tax, statutory transfers to Victoria's Consolidated Revenue, and payments in lieu of rates to municipalities now amount to $9.2m per annum.

Capital Expenditure Expenditure on capital works during the year was $103.7m compared with $102.9m in 1967/68. 1968/69 1967/68 $m $m Power stations 40.3 40.2 Transmission 26.8 26.0 Distribution 26.8 24.9 Coal production 4.9 6.7 Other works and equipment 4.9 5.1

$103.7m $102.9m

Expenditure on the 1,600 MW Hazelwood Power Station was $36.3m compared with $37.4m last year, and $2.9m was spent on the 500 kV transmission lines under construction from Hazelwood to Melbourne. A further $3.7m was spent on the construction of the Yallourn 'W' Power Station ($1.3m in 1967/68).

9 Expenditure on coal production assets was mainly associated with developing excavating and conveyor facilities in the Morwell Open Cut NEW CAPITAL EXPENDITURE 1959-1969 to meet the increasing coal requirements of Hazelwood Power Station. $(millions)

120 At the 30th June, 1969, the cost of the Commission's fixed assets after I-- deduction of the $329.2m accumulated depreciation provision is $941.5m compared with $890.3m at the beginning of the year.

lOO -~ Capital Finance it The Commission was authorised to borrow $77.2m ($10m more than last 80 year>, comprising $51.73m for renewal of maturing loans and $25.47m - J r-- for new works, compared with $41.69m and $25.5m respectively last I/ year. This amount was raised in full through private offers of $47.85m and four public loans totalling $29.35m . :--...... _, ,-. I V;; f-- 60 Redemptions of maturities requiring replacement increased by $6.6m. lt / 1- V 1--f " was necessary to raise $9m more in public loans than in 1967/ 68. V Loan transactions for each of the last five years were- / r--...... ~ 40 , ...... Total ~ Cash Conversions Raisings Redemptions 20 $m $m $m $m 1964/ 65 51.1 21.0 72.1 24.5 1965/ 66 47.3 13.1 60.4 20.3 1966/67 42.9 16.7 59.6 14.9 0

1960 '61 '62 '63 '64 '65 '66 '67 '68 1969 1967/ 68 43.2 24.0 67.2 17.6 1968/ 69 49.7 27.5 77.2 24.2

• Thermal power • Briquette product1on stations In the year under review, capital finance was $4.2m in excess of capital

• Hydro-electric Tra nsmission and expenditure and loan redemptions, thus recouping some of the $16.7m developments distribution systems reduction in the Commission's liquid reserves over the last two years Ge neral eQu ipment, ($ll.lm in 1967 / 68 and $5.6m in 1966/67). D Coal production workshops, stores The sources of funds to meet capital requirements over the last two years were- 1968/69 1967/68 $m $m Capital requirements Capital expenditure 103.7 102.9 Loan redemptions 24.2 17.6

127.9 120.5 Finance S.E.C. loan ra1s1ngs 49.7 43.2 State Government loans 17.0 17.0 "Self-help" extension deposits, and miscellaneous capital contributions and advances 16.4 14.1 Internal funds 44.8 46.2*

$127.9m $120.5m

* Includes $11.1m transfer from liquid reserves.

10 Revenue Account

FOR YEAR ENDED 30th JUNE. 1969

Last Year $ $ $ OPERATING INCOME Electricity sales Domestic 63,023,866 54,790.057 Commercial and general .. 31,014,391 27,323.730 Industrial 55,606,400 ')2,617,987 Bulk supplies 45,571,587 ;ll,508,500 Traction 3,690,623 3,824,659 Public lighting 2,351,480 2,165,207 Unread meters 1,135,519 2,634,773 202,393,866 !84.864,913 Briquette sales 13,252,820 12.467.024 Brown coal sales 770,792 734.221 Tramways income 265,575 266.077

216,683,053 198,332,239

OPERATING EXPENDITURE Operation and maintenance (incl. fuel} 73,796,906 68,199.155 Depreciation 42,958,631 41,465,474 Administration and general expenses 18,718,943 16,433,626 Employees' service benefits, accommodation and general services 9,944,375 8,898,371 145,418,855 134,996,626

EXCESS OF OPERATING INCOME OVER OPERATING EXPENDITURE 71,264,198 63,335,613 Interest . 47,961,509 45,517.378 Loan flotation expense 545,500 2,082.530 Miscellaneous expenditure 575,696 677,507 Additional depreciation of briquette factories 6,000,000 5,000.000 Provision for accruing long service leave and retiring allowances 6,000,000

Provision for transfers to Consolidated Revenue of Victoria On gross income 6,300,000 5,700,000 Under provision in 1967/68 120,000 340,000 On brown coal production 561,644 563,018

68,064,349 60,880,433

BALANCE OF INCOME USED FOR CAPITAL WORKS $3,199,849 $2,455,180

NOTE: Additional information on the Revenue Account is provided on pages 48-50

11 Balance Sheet

AS AT 30th JUNE, 1969

Last Year CURRENT ASSETS $ $ $ Balances at bank and cash in hand 819,879 1,247,489 Consumers' and other accounts receivable 18,072,179 17,483,560 Unread meters estimated income 15,725,885 14,590,366 Materials and fuel - at cost 12,570,658 14,381,679 Other deferred charges 247,046 473,686

47,435,647 48,176,780

INVESTMENTS (incl. loan redemption and "self-help") at cost 48,436,475 43,195,099

LONG TERM DEBTORS (real estate sales) 4,119,978 4,163,033

FIXED ASSETS

Assets in service - at cost 1,192,887,800 1,076,253,486 deduct: Provision for depreciation 329,161,724 293,942,911

863,726,076 782,310,575 Assets not yet in service .. 64,031,958 93,899,710 Development of open cuts balance of cost 13,719,891 14,117,622

941,477,925 890,327,907

$1,041,470,025 $985,862,819

J. L. PEPPERELL, Chief Finance Officer.

NOTE: Additional information on the Balance Sheet is provided on pages 51·54

12 Last Year CURRENT LIABILITIES $ $

Bank overdraft 470,861 437,787 Accounts payable and miscellaneous accruals 14,619,329 15,294.002 Interest accrued 10,363,543 9,812,908 Provision for transfers to State revenue 6,861,644 6,263,018 Consumers' and contractors' deposits 1,047,088 941,970

33,362,465 32,749,685

DEFERRED LIABILITIES AND PROVISIONS Consumers and other advances for capital works 53,118,707 53,244,853 Advances from Provident Fund ... 36,896,527 31.798,843 Acquisition loans from Municipalities 3,453,097 1.747.402 Provision for long service leave and retiring allowances 6,000,000

~···············--- 99,468,331 86,791,098

RESERVES General reserve 29,127,152 25.467,484 Consumers' and other contributions for capital works 8,206,836 6,259.023

37,333,988 31,726,507 ----- CAPITAL LIABILITIES Inscribed stock and debentures 633,008,917 611,177.960 Victorian Government advances 238,296,324 223,417,569

871,305,241 834,595,529

$1,041,470,025 $985,852,819

W. H. CONNOLL Y, Chairman.

AUDITOR·GENERAL'S CERTIFICATE The accounts of the State Electricity Commission of Victoria have been audited for the year ended 30th June, 1969. For the purpose of the audit, appraisals and examinations carried out by the Commission's Internal Auditor have been accepted. In my opinion, the above Balance Sheet presents a true and fair view of the affairs of the undertaking at 30th June, 1969, and the Revenue Account properly summarises the operations of the Commission for the year.

A. J. A. GARDNER, Auditor-General 13th October, 1969

13 Extensions to the State Generating System

PLANT INSTALLATION PROGRAMME TO 1975

Estimated Planned Capacity Additions Corrected Reserve Maximum Calendar Less Over-age or Derated Plant Plant Capacity Winter Year (MW) Capacity Expected Demand (MW) (MW) (MW)

1970 2,723 Hazelwood 7 200 3,404 681 Snowy (Biowering) 5 (25.0%) (Murray 2) 61

266

1971 2,880 Hazelwood 8 200 3,568 688 Snowy (increased Common- (23.9%) wealth reservation) -7 Yallourn B (over-age) 17 Yallourn Briquette Factory generating plant (over-age) -12

164

1972 3,060 Yallourn W1 350 4,031 971 Snowy (Tumut 3) 131 (31.7%) Yallourn B (over-age) -18

463

1973 3,281 Snowy (Tumut 3) 148 4,179 898 (27.4%)

1974 3,520 Yallourn W2 350 4,676 1,156 Snowy (Tumut 3) 147 (32.8%)

497

1975 3,783 Snowy (cessation of 4,675 892 construction) 5 (23.6%) Spencer Street (over-age) -6

-1

Notes 1. This programme is based on thermal plant being no longer available for service after 40 years; however, these over-age units are not necessarily taken out of service at that time.

2. Corrected plant capacity is the manufacturer's maximum continuous rating of generator sets less an allowance imposed by shortage of essential elements such as boiler capacity, circulating water (steam sets), or water (hydro sets), or other deficiencies.

14 The plant installation programme includes all generating plant projects at present authorised, together with the expected entitlements to new capacity from the Snowy scheme. During this period the Hazelwood Power Station is to be completed to its full capacity of 1,600 MW and the new Yallourn 'W' station is expected to be completed to 700 MW. On present indications of future loading and with additional power from the 1,500 MW Tumut 3 station at Snowy becoming available as scheduled, no further generating plant need be installed to meet the expected 1975 loading and the next increment of generating capacity will not be required before 1976.

With the completion of Yallourn 'W', the generating plant installed in the Latrobe Valley will be sufficient to meet over 80% of the estimated system maximum demand in 1974. This marks the culmination of a development programme which, over a period of 20 years, will have added more than 2,900 MW of base load generating plant fuelled by the brown coal of the Latrobe Valley.

The utilisation of the indigenous energy resources of Victoria has always been one of the prime objectives of the Commission, and for most of its history the Commission's power and fuel projects have been based on development of the Latrobe Valley brown coal deposits (supplemented by hydro-electric resources). The discovery of oil and natural gas fields off the Victorian coast has added considerably to the State's indigenous fuel resources and must be taken into account in future planning of power generation projects. In addition, the widespread adoption of nuclear power in overseas countries points to yet another new source of energy, and the position now is far removed from that which applied in early years when great reliance had to be placed on brown coal. With such a range of fuels and potential fuels available for expansion of the generating system, intensive study is continuing into the various alternatives so that the Commission will be able to proceed at the appropriate time with additional plant which will produce the greatest overall economy in system operation.

Yallourn 'W' Power Station- an artist's impression of the station as it will appear when completed late in 1973.

15 The base load power stations now being built in the Latrobe Valley will supply the energy growth well into the mid-1970's and the next project will be called on mainly to meet future peak demands and to provide an energy reserve capability. An oil or gas-fired plant in the metropolitan area promises to be well suited to this purpose and will have to be carefully considered. A decision on this will need to be made within the next year.

In 1979 or 1980 more base load capacity will be required. The alternatives for this are the traditional brown coal fired plant, oil or gas fired units (if these fuels are available at prices acceptable for base load generation) and nuclear energy. Studies of present-day developments in nuclear power are continuing and everything tends to support the view that in unit sizes of 500 MW and above nuclear power will be a serious competitor.

In the later years it will also be necessary to provide peak generating capacity in the role which for so long has been filled by the Snowy scheme.

Pumped storage hydro-electric plants or gas turbine units are likely to provide what is needed, but this, again, is a decision which can be deferred for several years. In the meantime, provision has been made so that gas turbine plant may be installed at short notice should the load grow rapidly.

National Consultative Committee on Nuclear Energy Early in 1969 the Commonwealth Government initiated a series of discussions between the Minister for National Development and the appropriate Ministers in each of the States to discuss the problems likely to arise from the introduction of nuclear energy for the generation of electric power.

At the discussion in Melbourne on 24th February, 1969, the Minister for Fuel and Power represented the State Government and the Chairman of the Commission was present.

Later, in June, 1969, the Prime Minister announced that, following the discussions, all State Governments would be invited to work with the Commonwealth on a National Consultative Committee on Nuclear Energy.

This Committee would consider such matters as the licensing of nuclear reactors, international obligations, nuclear fuels, the disposal of radio­ active wastes and third party insurance against the possible results of nuclear accidents.

This is a first move towards laying foundations for the administrative and legal framework which must be set up before the introduction of nuclear energy for the generation of electric power in the State power system.

16 Construction

Hazelwood Power Station The approved capacity of this station is eight 200 MW turbo-generators and eight 1,650,000 lb/hour pulverised brown coal fired boilers. The fifth unit was accepted for commercial service in August, 1968, and the sixth unit in May, 1969, one month ahead of its programmed date. Work on the seventh and eighth units is proceeding to programme; these sets are scheduled for operation by the end of 1969 and the end of 1970 respectively. As operating conditions permit, tests and modifications to boiler plant are being carried out to improve reliability of performance.

Yallourn 'W' Power Station This station will comprise two turbo-generators of 350 MW each and two 2,500,000 lb/hour pulverised brown coal fired boilers. Foundations for the power station are nearing completion and the erection of steelwork began in November, 1968. A contract was placed for construction of two 375 feet high natural draught cooling towers which will be the first of this type in Australia. The manufacture of plant by contractors is proceeding satisfactorily. The first generator is programmed for service early in 1972 and the second late in 1973.

Main Transmission The first 500 kV transmission line- at present operating at 220 kV- will be increased to its rated voltage in 1970 following the completion of terminal stations at Hazelwood and Keilor. The second line now under construction is scheduled for completion and operation at 500 kV in 1971. Yallourn 'W' Power Station under construction half-a-mile west of the The second 330 kV line from Dederang to South Morang was completed existing Yallourn Power Station. in June, 1969.

17 A 220 kV line between Ballarat and Terang to improve reliability of supply in south western Victoria was placed in service in March, 1969. Reconstruction of the double circuit 220 kV line from Thomastown to Brunswick to provide much greater capacity was completed in April, 1969. There are now 1,690 route miles of 500 kV (operating at 220 kV}, 330 and 220 kV lines in the main transmission network. To improve supply in the Wimmera area, a new terminal station is being constructed at Horsham and a 220 kV line is being erected between Ballarat and Horsham. This work is planned for completion late in 1969. A new terminal station at Glenrowan on the route of the 220 kV Dederang­ Shepparton transmission line will be completed early in 1970. Transformer capacity is being increased at terminal stations at Richmond, Ballarat and Shepparton. A large size capacitor bank (50 MVAr, 66 kVl wa-s placed in service at Keilor Terminal Station in March, 1969. New 66 kV substations were placed in service at Montague, Riversdale and Toorak and major reconstruction work was completed at Deepdene Main Substation.

Future of Yallourn Township When the Yallourn undertaking was being developed in the early 1920's, the only practical course was to build a town close to the main works for the construction and operating work force and to provide the necessary municipal services, even though it was known that there were coal reserves under the site selected. The overall design of the project is such that the coal under the town will be the last to be won in the Yallourn area and the final working out of the Yallourn Open Cut will coincide with the end of the useful life of the last Yallourn installations. By the turn of the century even the Yallourn 'W' Power Station, now being constructed, will be close to retirement. Thus by the year 2000 there will be few people employed in the Yallourn area. Accordingly, the Commission, in constructing and developing the existing town, has always avoided transferring the freehold of land in the township. So that all who had a long-term interest in Yallourn would be aware of possible development well in advance of events, the Commission in 1961 issued a public statement that the large quantity of coal under Yallourn could be won economically, and it would probably be needed after the year 1995. Having regard to the most recent developments at Yallourn, the Commission, late in 1968, made a comprehensive review of future coal requirements from the Yallourn Open Cut to determine more precisely the extent and quality of the coal deposits beneath the township as compared with alternative sources, and also the likely future development of the open cut in relation to the township (by delineating the boundaries of open cut workings in the township area at various points of time). As a result the Commission has reaffirmed its decision that the valuable coal reserves under the Yallourn township should be utilised. The review has clearly shown that it is a far better proposition, both technically and economically, to continue the development of the open cut

18 through the town area than to adopt the alternative course of opening a new coal field to the east. The coal in the east field is of inferior quality. In addition, it would be necessary to divert the Morwell River, remove larger quantities of overburden, transfer operating faces, and provide a costly new transport system to bring coal to the power station bunkers over longer distances. The age of the houses in the township and their suitability for future requirements also was considered. After taking all factors into account the decision to utilise the coal under the township would result in a net saving to the community of the order of $15 million.

In April, 1969, the Yallourn Town Advisory Council was informed in detail of the Commission's plans for the future of the Yallourn township, including the steps to be taken to keep to a minimum any hardship to residents and the basis for compensating lessees of business premises and community properties such as churches and clubs.

Consultations are continuing between the Advisory Council and the Commission to ensure that the views of residents receive adequate consideration.

The abandonment of the town will be effected gradually over a long period. The south-east section of the town containing some 200 houses would be required for coal winning operations by 1985 whichever alternative was adopted. The Commission's decision will result in a further area being required by 1995 and the remainder by the year 2000.

Bearing in mind the time factor involved and the fact that Yallourn is a "works" town comprising only rented premises, the normal turnover should enable the reduction of the town to be effected by retiring from time to time houses which have been vacated . lt is reasonable to assume that compulsory transfers of residents, if any, will be few in number.

Bucket-wheel coal dredger, Yallourn Open Cut (capacity 1,500 tons of coal per hour). Approximately 12 million tons of brown coal is being obtained from this open cut annually.

19 Metropolitan Municipal Electricity Distribution Systems

By amalgamation, co-ordination and extensions of supply along lines approved by successive State Governments, the position has been reached in recent years where the Commission is responsible for generation and transmission throughout the State of practically all the electricity used by nearly one and a quarter million consumers taking supply in Victoria from public supply sources.

The Commission is also responsible for distribution throughout the State with the exception of a 127 square mile section of the metropolitan area where the local distribution activity is in the hands of eleven separate municipal undertakings, the smallest having fewer than 5,000 consumers.

Although the electricity supply system in Victoria now makes electricity available to virtually all potential consumers in the State with a single standard schedule of tariffs applicable in all areas served, the co-ordinated management of the system is hampered by the lack of unification of distribution in the metropolitan area.

The existence of the eleven metropolitan municipal undertakings follows from the very early circumstances of electricity supply in Victoria. The Commission acknowledges the part played by the municipal councils in electrical development over the intervening years since those early days but feels it is appropriate to say that this development has been largely influenced by the growth of the broader-based State supply system. Also, the present situation can hardly be considered rational by comparison with modern concepts of the way major electricity supply systems should be organised.

For some years the Commission has expressed the view that there is need for completing the process of amalgamation and co-ordination by transfer to it of responsibility for distribution in the municipal supply areas.

The present arrangement permits some electricity revenue which should be used for the electrical development of the State to be diverted for general municipal purposes; however, this is only one aspect of the matter. The supply areas of these municipal under­ takings are very diverse, ranging from predominantly industrial areas to those which are mainly residential. Not all have a sufficient balance between domestic, commercial and industrial requirements to give an effective diversity of loading so necessary to the economic conduct of an electricity supply undertaking. The policy approaches taken by these local authorities are influenced by the situation within their individual supply areas and do not necessarily have regard for the overall needs of the State. These different approaches create technical and administrative problems and it is becoming more difficult to ensure a co-ordinated effort towards a balanced electrical development and an effective promotion of the use of electricity. Expedients devised in an attempt to meet these problems are becoming increasingly complex and early action is necessary if the present unsatisfactory situation is to be resolved. In presenting the 1962/63 State Budget to Parliament, the Premier stated that the Government would look favourably upon the transfer of the municipal distribution systems to the Commission by amicable negotiation. However, the reaction of the councils since has proved this approach to be quite fruitless. Accordingly, the Commission has in hand a comprehensive review of its proposals for legislative action.

20 In the meantime, as an expedient under the present circumstances, the Commission is negotiating some tariff adjustments with the municipal undertakings to encourage them to co-ordinate more effectively their load development activities with those of the Commission for the overall benefit of the industry.

New Legislation The State Electricity Commission Act 1968 (No. 7741) was passed by Parliament on 3rd December, 1968. The Act amended the Commission's principal Act in respect of the following matters:

Municipal Rates To clarify the position as regards payment of municipal rates by the Commission, it was established that lands vested in the Commission are not and are deemed never to have been rateable property within the meaning of the Local Government Act 1958. Provision was included for the Commission to be liable in future for an amount equal to rates otherwise applicable to premises either wholly or partly used for trading in electrical appliances.

Cathodic Protection Systems The powers of the Commission were extended to enable it to make regulations for the registration of, prescription of standards for, and control of the use of, cathodic systems designed to protect underground metallic structures from corrosion.

Registration of Electrical Contractors The provision enabling the registration of different classes of electrical contractors was deleted as now there is need for only one class of contractor.

On 7th May, 1969, the State Electricity Commission (Borrowing and Investing Powers) Act 1969 was passed by Parliament to amend the Commission's principal Act as follows:

Borrowing Authority The Commission's borrowing authority was increased by $125 million to $975 million.

Power to Invest in Companies The Commission was authorised, subject to the consent of the Governor in Council, to form or join in the formation of any company which includes amongst its objects the sale and disposal of coal, pulverised coal, briquettes, char or any of their by-products, and to acquire shares in such a company.

21 Electricity Production Sources of Electricity for State System

Installed * Capacity of Maximum Demand Power Stations Generators 1968/69 1967/ 68 GWh Generated (30/6/ 69) MW MW 1968/ 69 1967/68 MW 1. Base Load Thermal Stations - Haze l wood 1,200.0 1,242.0 1,018.0 5,838.1 4,686.6 Yallourn (incl. Briquette Factory) 592.5 626.7 629.3 3,896.0 3,779.0 Morwell 170.0 183.0 183.0 1,1 75.0 1,233.2

Sub-total 1,962.5 10,909.1 9,698.8 (84.8%) (81.3%) 2. Peak Load Thermal Stations - Melbourne Newport 228.0 250.8 239.0 324.8 575.1 Spencer Street 109.3 90.0 90.0 55.6 56.9 Richmond 38.0 39.0 39.3 17.7 46.8 Gee long 30.0 38.5 31.4 8.9 34.9 Ballarat 20.0 25.0 21.4 2.9 7.6 Red Cliffs 15.5 7.0 10.8 0.7 1.0 ELECTRICITY PRODUCTION Warrnambool 4.4 0.5 Base year 1958-59 = 100 Sub-total 440.8 410.6 722.8 250 (3.2%) (6.1%)

3. Hydro Stations Ki ewa 183.6 197.0 208.0 396.7 202.6 Eildon-Rubicon (incl. Ca irn Curran) 150.9 139.6 134.3 226.0 338.4 Sub-total 334.5 622.7 541.0 (4.8%) (4.5%)

4. Stations operated by other bodies 11 594.0 526.0 500.0 925.3 972.4 (7.2%) (8.1 %)

TOTAL 3,331.8 2,429.0 2,332.0 12,867.7 11,935.0 (2/7/68) (4/6/68) (100.0%) (100.0%)

• Installed capacity is the manufac turer's max imum continuous rating of generators. This is suoject to limitations imposed f rom time to time by shortage of other essential e lements such as boiler capacity, circ ulating w at er (steam sets) o r water (hyd ro set s) or othe r d eficiencies. 11 This capacity refers to Victoria's firm entitlement from the Snowy Mountains scheme, p lus half the capacity of Hume Power St ation. The output fro m the Snowy Mounta ins scheme, after m eeting Commonw eal t h reservations, is shared between New South Wa les and Vict oria in t he ratio of 2 : 1, and the output from H ume Power St ation is shared equally between New South Wales and Victoria. Figures for electricity gen erated al so inc lude interchange from New South Wa les and purc hases from Alcoa of Austra lia Pty_ Ltd. (Ang lesea), Phosphate Company of Austra lia (Geelo ng), Tumut River County Council, Electric ity T rust of So uth Austra lia, Cresco Fertilise rs Ltd. (Po r tland) and Radio Aust ral ia (Cong upna).

Interchange with New South Wales Interchange arrangements with New South Wales continued to work satisfactorily to the mutual advantage of both States .

• Black Coa l * Hydro stations • One Snowy)

O sriquettes * ioc. Coke During the year the Commission supplied 30 gigawatt-hours to the Snowy Mountains Hydro-electric Authority for t he operation of the Jindabyne Pumping Station.

22 Brown Coal Production

Operations during the year brought the total brown coal excavated in the Latrobe Valley to nearly 359 million tons.

Coal Won Overburden Removed (tons - thousands) (cubic yards-thousands) 1S68/69 To Date 1968/69 To Date Yallourn 11,890 282,076 6,022 110,958 Morwell 10,117 55,982 2,136 33,161 Yallourn North 459 20,870 504 21,718

22,466 358,928 8,662 165,837

(22,521 thousand (8,097 thousand last year) last year)

The Latrobe Valley power stations consumed 17.6 million tons of the combined brown coal production of the Yallourn and Morwell open cuts; the balance- 4.4 million tons- was used in the manufacture of briquettes. Coal won at Yallourn North was used mainly by Australian Paper Manufacturers Ltd. at Maryvale (355,580 tons) and the Gas and Fuel Corporation at Morwell (93,160 tons).

The highest daily coal output achieved during the year at Yallourn was 49,213 tons on 18th July, 1968, and at Morwell 48,212 tons on 8th September, 1968.

Morwell Open Cut- Hazelwood Power Station and Cooling Pondage in background.

23 Morwell Open Cut

BROWN COAL PRODUCTION 1939 · 1969 An operating control centre making extensive use of modern electronic Tons lm•llionsl control and radio communications capabilities will be completed late 22 in 1969 to monitor and provide centralised direction of the Morwell r- - - Open Cut operations and supply of coal to the Hazelwood and Morwell D Morwell open cui power stations. -- ~ - Yallourn North open cui The first stage of the conveyor system to serve the west field of the Morwell 18 - -r- - 1- Open Cut commenced operation in August, 1968, being used initially for D Ya llourn open cut overburden removal pending the completion of No. 10 bucket wheel 16 - - - - 1- dredger (capacity 1,750 cubic yards of overburden or 1,900 tons of brown coal per hour). Construction of this dredger, which was delayed by an -14 accident last year, is now well advanced and the dredger is expected to come into service in December, 1969. ·I-.... 12 - ·-- A further large capacity bucket wheel dredger (No. 11 - capacity 1,600 10 cubic yards of overburden or 1,750 tons of brown coal per hour) is under - I ~ ~ 1- construction and is planned for service towards the middle of 1970.

-- - - r--!- The second stage of the conveyor system in the west field is well advanced and will come into service progressively in 1970. -~ ~. 1- L - - - f- I~

2 f- - - 1-

0 1939 1944 1949 1954 1959 1964 1969 Briquette Production and Sales

Production (Tons> Yallourn Morwell Total 1964/65 512,833 1,379,926 1,892,759 1965/66 501,512 1,381,302 1,882,814 1966/67 483,730 1,336,390 1,820,120 1967/68 475,075 1,269,873 1,744,948 1968/69 335,744 1,135,584 1,471,328

The Yallourn A Briquette Factory was retired from service on 19th December, 1968, after 44 years' continuous three-shift operation, during which it produced a total of 6,700,000 tons of briquettes.

Sales Record sales were achieved in both the domestic and industrial markets during the year despite intensified competition from alternative fuels, and total sales (including export) increased by 84,464 tons (6.8%) over 1967/68. Domestic sales increased by 41 ,557 tons (8.3%) and industrial sales by 24,104 tons (4.5%). Sales to the Gas and Fuel Corporation increased by 18,804 tons (9.1 %). The total sales of 1,333,788 tons represented 90.7% of the year's production; Commission power stations absorbed the remainder.

24 This marked increase in sales is a clear indication of the major importance of briquettes in meeting the demand for energy in Victoria.

To ensure that costs are kept to a minimum, and following consultations with the Fuel Merchants' Association, a scheme to rationalise the retail distribution of domestic briquettes in the metropolitan area is being implemented.

Sales to the Gas and Fuel Corporation will cease with the advent of natural gas and the closing of the Corporation's gasification plant at Morwell towards the end of 1969.

Exports Exports to Japan continued, enabling briquette char to be manufactured and marketed in that country for use in the carbon disulphide industry.

Manufacture of Char from Briquettes Following negotiations during 1968 to establish a hard char manufacturing plant adjacent to the Morwell Briquette Factory, a proprietary company, Australian Char Pty. Ltd., has been formed jointly by Elder Smith Goldsbrough Mort Ltd. and Nissho-lwai Company (Australia) Pty. Ltd. The Commission has subscribed 5% of the share capital of the company and is represented on the Board (as authorised by the State Electricity Commission (Borrowing and Investing Power) Act 1969- see page 21).

Site preparations for the erection of the plant commenced in May, 1969, and it is expected to commence operations in mid-1970. The capacity of the first stage is approximately 30,000 tons of char per annum from a briquette requirement of some 70,000 tons per annum. The company intends to proceed with the construction of a second retort on completion of the first stage, increasing production to 60,000 tons of char per annum.

The Gippsland Cement and Lime Co. Pty. Ltd. has completed the plant at its Traralgon works to produce char for use in its cement production process as a substitute for gas coke. The company will produce char over and above its own requirements for sale to other users.

BRIQUETTE SALES 1960 · 1969 Domestic - Ind ustria l - Gas & Fuel Corpn. Tons (thousands) 600

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

25 Electricity Supply

Electricity sold to all consumers, retail and bulk, excluding sales to New South Wales, totalled 9,894 gigawatt-hours, an increase of 5.9% on the previous year (5.7% in 1967 /68). There was a very large reduction in the load requirements of Alcoa of Australia Pty. Ltd. for its aluminium smelter following the commissioning of the company's power station at Anglesea. Excluding Alcoa, total Victorian sales increased by 8.4% (6.0% for 1967 I 68) . Alcoa is duplicating its smelting facilities at Point Henry and this will increase its electricity requirements well beyond the capacity of the company's power station; the Commission will supply the excess load . Projected industrial development in the Westernport Bay area, including the establishment of a major steel manufacturing plant, is expected to entail significant increases in load. Sales to industrial consumers - excluding Alcoa - increased by 5.6% (8.0% in 1967/ 68) and to commercial consumers by 12.6% (8.5% in 1967/68). The number of consumers in the industrial and commercial classes increased by 5,336. Sales to domestic consumers increased by 11.9% (5.1% in 1967 /68) and 31,758 additional consumers in this class were connected to supply. Average consumption per domestic consumer rose by 7.9% compared with an increase of 1.2% in the previous year. The following table shows how the average consumption per domestic consumer has nearly trebled ELECTRICITY SALES & INCOME in the last 20 years. Su bdivision accord ing to classes of consumers. Year ended 301 h June, 1969 kWh Sold per INCOM E Population of No. of Year Ended Domestic Area of Supply Domestic Consumer 30th June (thousands) Consumers (Average> 1949 1,353 315,191 1,333 DOMESTIC 1954 1,753 426,461 1,739 1959 2,099 546,880 2,474 1964 2,358 673,107 3,049 1969 2,640 820,165 3,750

30% INDUST RIAL

28% INDUSTRIAL Tariffs A new low voltage all purposes maximum demand tariff, known as the Commercial/ Industrial (Non-residential) Maximum Demand Tariff 'V' was introduced with effect from 1st August, 1969. The tariff wi 11 enable appropriate charges to apply to a number of commercial and industrial consumers who have substantial requirements of electricity at a relatively high load factor.

Connection of New Consumers During the year 37,101 additional consumers, including 1,895 farms, were connected to the State system. it is appropriate that this, the Jubilee Year of the Commission, sees the virtual completion of the electrification of the State. Of more than TOTAL 10,554 GWh TOTAL $20 1,258,347 one million homes in the State only some 3,000 are not connected to the public supply system, and most of these are in remote and isolated areas.

26 SUMMARY OF PROGRESS

177,282 Additional Consumers in Five Years Year Ended Additional Metropolitan Outside Farms 30th June Metropolitan Connected 1965 37,809 11,164 (30%) 26,645 (70%) 4,003 1966 34,283 10,194 (30%) 24,089 (70%) 3,586 1%7 34,693 9,267 (27%) 25,426 (73%) 3,607 1968 33,396 9,344 (28%) 24,052 (72%) 3,002 1969 37,101 11,218 (30%) 25,883 (70%) 1,895 Total for 5 years 177,282 51,187 (29%) 126,095 (71%) 16,093 Total on supply at 30/6/69 981,535 400,575 580,960 72,505

The considerable extent of country electrification work is evident from the following comparison: Outside Year 1968/69 Metropolitan Metropolitan Area Area Poles erected 30,345 3,546 High voltage lines erected-route miles 2,162 52 Low voltage lines erected- route miles 341 49 Substations erected 3,525 146 The renovated showrooms of the Commission in Clements House, Flinders Street, Melbourne, were Acquisition of Electricity Supply Undertakings officially opened by the Hon. J. C. M. Balfour, M.L.A., Minister for Fuel and During the year the electricity supply undertakings at Arar.at, Stawell, Omeo Power, on 1st July, 1969. and Swift's Creek were acquired.

27 VALUE OF ELECTRICITY USED IN FACTORIES ($000)

Non-met!lliferous products

Bricks. pottery, glass

Rubber

Clothing (excl. knitted)

Timber

5,000 10,000 15,000 20,000 25,000

GROWTH OF RETAIL ELECTRICITY SAL ES IN VICTORIA GWh Public Lighting Forty-one miles of high level traffic route lighting was installed in metropolitan and country areas, and a number of complex arterial road intersections have bee n illuminated most effectively by 700 watt colour­ corrected mercury lamps mounted on 60 ft. standards. A number of special public lighting installations have been completed or were commenced during the year. These include the St. Kilda Junction/ Wellington Bypass Road and the Separation Street Overpass Project at Geelong, both of which will utilise 700 watt colour-corrected mercury lamps. For the Tullamarine Freeway, the Strathmore Bypass Road and Stage 2 of the South-Eastern Freeway, lighting will be provided by high efficiency 200 watt sodium vapour lamps.

Commission's Retail Distribution Th e following summary of statistica l data relates to the Co mmission's retail electricity distribut ion : Increase % This Year on 1967/68 Increase Income ($l 155,686,760 14,965,120 10.6 Sales of electricity (GWh) 7,424.033 383.392 5.4* Substations 59,102 3,671 6.6

Industrial D Traction Distribution lines -high voltage (route miles ) 41,520.9 2,214.0 5.6 Commercial - Public lighting -low voltage (route miles) . 14,046.1 390.3 2.9 - Domestic * 8.8% exc luding Al coa (see page 26)

28 Branch Distribution In the year under review the following country extensions were completed or nearing completion at 30th June, 1969: Gippsland Branch - Ensay, Harmer's Haven, Tambo Crossing. Mallee Branch - Carina, Kattyoong, Manya, Pallarang, Winnambool. Mid-Western Branch - Basalt. North-Eastern Branch - Burrowye, Chiltern Valley, Gobur, Granya, Highlands, Lucyvale, Meadow Creek, Mirimbah, Narbethong, Nariel Creek, Whitehead's Creek, Whitlands. South Western Branch - Drik Drik, Kinkella, Kennett River, Princetown, Roseneath, Wye River. Wimmera Branch- Broughton, Concongella, Coojar, Gaalanungah, Green's Creek, Kinimakatka, Nypo, Pella, Pigeon Ponds, Sandsmere, Tarrayoukyan, Werrap, Winiam, Yanipy.

The electricity distribution system is being continually expanded to meet increased demand, including that FARM ELECTRIFICATION associated with the construction of Farms connected (000<) percentage connected ~o multi-storey flats in many inner 80 ,----,----,---~----,---~----~--~~--,----,----, ----.::....::_ - Total __7t-- 5_,600__ a_ t 3+-0t_h_Ju_ne_, +-19_69__ - _- _ metropolitan areas. 70 f--- ·· - f a • m~ ~ro a -t=_,.""""""-"""""'! 95 9

650 E~Ef=e3-~---e3,_ S 40 _____ , ____ ------1----.·----1------55.2

~ ~--~----~---+----+-~-+----+_ ----+----4----4---~ 20 r---~----+----+----~--~----~---+----4----4----~ IO r----r----+----+----+---~----+----+----;----4----~ 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

Tramways- Ballarat and Bendigo Patronage of the tramway systems at Ballarat and Bendigo continues to decline, and once again a loss of nearly $500,000 was incurred in the operation of the two systems. In an endeavour to prevent losses from becoming greater, fares were increased from 26th January, 1969, but the number of passengers declined and revenue was less than in the previous year. The following statistics show how the position has continued to deteriorate over the last five years: Year Ended Income Expenditure Loss Passengers 30th June $ $ $ 1965 229,558 661,386 431,828 4,727,654 1966 248,375* 702,312 453,937 4,332,771 1967 281,677* 754,920 473,243 3,860,604 1968 266,077 753,112 487,035 3,537,177 1969 265,575 743,727 478,152 3,237,291 *Fare increases resulted in an increase in income in these years.

29 Since 1935 losses on the two systems have exceeded $7.5 million.

For many years the Commission has emphasised that the tramway systems are not economically justified, and should be abandoned in favour of a more suitable form of transport. Following a report by the Commission to the Government in 1967, the Transport Regulation Board conducted enquiries into transport facilities at Ballarat and Bendigo, and in June, 1968, recommended to the Minister for Transport that the tramway systems be discontinued as soon as alternative motor omnibus services could be provided. The Commission presented to Parliament notice of its intention to abandon the tramway systems pursuant to Section 74 of the State Electricity Commission Act 1958, but on 2nd October, 1968, the Legislative Council passed a motion that the proposed abandonment be disallowed.

The Commission believes that public opm1on in these two cities is increasingly in support of the replacement of trams by a satisfactory bus service. The establishment of alternative services is not of course the responsibility of the Commission, although it is closely in touch with the Transport Regulation Board in this matter.

Haze lwood Power Station - interior of the turbine house, which will extend for almost one-third of a mile when the seventh and eighth turbo-generators are installed.

30 Personnel

Total Personnel Wages Staff Total 30th June, 1968 12,448 9,446 21,894 30th June, 1969 11,897 9,347 21,244

Distribution of Personnel as at 30th June, 1969 Administration 1,733 Power generation 2,917 Main transmission lines, terminal stations and substations 2,149 Electricity supply - Country Branches distribution 3,362 Electricity supply Metropolitan Branch distribution 2,201 Briquette production and distribution 1,359 Coal winning 1,430 General services, town and workshops Yallourn 1,930 General services and workshops elsewhere 3,988 Tramways Ballarat and Bendigo 175

21,244

Personnel Relations Reference was made in last year's report to the application by the Municipal Officers' Association and other staff organisations to have their claim for a 25 per cent increase in salaries settled by arbitration. As a result, Mr. Commissioner Matthews of the Commonwealth Conciliation and Arbitration Commission varied the Municipal Officers' Association {S.E.C.V.) Award 1965 to provide for salary increases ranging between 8.6 per cent and 19.8 per cent to operate from lOth May, 1968, for supervisory and technical classifications and from 7th June, 1968, for other staff. The variations covered all staff under the Award other than some professional classifications (e.g., Architects, Scientific Officers, Surveyors). Mr. Commissioner Matthews deferred consideration of these classifications until a claim by professional engineers throughout Australia for increased salaries is dealt with by the Commonwealth Conciliation and Arbitration Commission. In the meantime, an agreement has been entered into with the Association of Professional Engineers, Australia, pursuant to Part X of the Common­ wealth Conciliation and Arbitration Act. The agreement provides that in their approach to any dispute both parties will endeavour to settle the matter by direct negotiation, failing which it would be referred to the Conciliation and Arbitration Commission for settlement in accordance with the provisions of the Act.

On 16th September, 1968, an industrial dispute arose when a contractor commenced work on modifications to burners at Hazelwood Power Station and members of the Boilermakers' and Blacksmiths' Society, Amalgamated Engineering Union and Federated Ironworkers' Union employed by the Commission at Hazelwood stopped work in protest. As there was an injunction against these unions, granted by the Common­ wealth Industrial Court on lOth May, 1968, contempt proceedings under Section Ill of the Conciliation and Arbitration Act were initiated and resulted in the Boilermakers' and Blacksmiths' Society and Amalgamated Engineering Union each being fined $900 and the Federated Ironworkers' Union $600.

31 On 20th September, 1968, members of the Boilermakers' and Blacksmiths' Society employed by the contractor stopped work on the burners under direction of the State Secretary of that Union and were supported by members of the Federated Ironworkers' Union. After consideration of the dispute by the Disputes Committee of the Trades Hall Council the Committee directed the unions concerned to remove all bans or restrictions imposed by their members on this work. All Commission employees of these unions returned to work on 8th October, 1968, but members of the Boilermakers' and Blacksmiths' Society employed by the Commission in the Latrobe Valley Region held a further stop-work meeting on lOth October, 1968. In the meantime the contractor, through the Chamber of Manufactures, had sought and obtained injunctions restraining the unions from allowing their members to be involved in any ban, limitation or restriction for a period of six months. Work on the burners by the contractor's employees was resumed on 7th October, 1968. These stoppages did not affect the continuity of electricity supply, but they did prolong the time the more modern and efficient boilers at Hazelwood were out of service.

As a result of a call by 27 unions not affiliated with the Trades Hall Council for general stoppages of work as a protest against the imprisonment of the Secretary of the Tramways Union for contempt of Court in connection with non-payment of fines imposed by the Industrial Court, a large number of employees of the Commission (including some members of unions affiliated with the Trades Hall Council) stopped work on 16th and 20th May, 1969. This included members of the Federated Engine Drivers' and Firemen's Association whose services are vital to the generation of electricity, and it was necessary to introduce severe restrictions on the use of electricity on both days. Under agreement with the unions 150 MW of thermal plant was operated on each occasion and this was supplemented by hydro-generation to enable a restricted supply of electricity to be available for the essential needs of the community. However, on 16th May, 1969, some shedding of load was necessary in several locations for short periods.

A demarcation dispute, which began in June, 1969, between the Electrical Trades Union and the Amalgamated Engineering Union in respect of mill motor maintenance work in Hazelwood Power Station culminated in a stoppage of work on 25th July, 1969. By 30th July, 1969, all Electrical Trades Union members employed by the Commission in the Latrobe Valley were on strike, stopping electrical maintenance work throughout the area and causing items of plant to be withdrawn from service progressively. At a meeting on 8th August, 1969, between representatives of the Commission and the Electrical Trades Union a procedural formula was devised which resulted in a resumption of work on 11th August, 1969. By that time all briquette manufacture had ceased and available generating plant capacity had been curtailed to a point where the State's electricity supply was in a critical situation.

32 In September, 1968, the Trades Hall Council submitted, on behalf of unions with members employed by the Commission, a Log of Claims as follows: • a working week of 35 hours; • an extra week of annual leave - i.e., four weeks of annual leave for day workers and five weeks for shift workers; • restoration for all classifications covering wages employees of at least the relativity that existed to the classification of Fitter Tradesman prior to the decision handed down by the Commonwealth Conciliation and Arbitration Commission in December, 1967, in respect of the Metal Trades Work Value Case; • an industry allowance of $11.40 to each classification for all purposes of the Award covering Commission employees, extending to payments in respect of annual leave, retiring gratuity, long service leave, etc.; • shift premium of $1.20 per shift based on New South Wales rates; • concession prices to Commission employees for the purchase of electricity and briquettes; • supply of footwear to all employees free of charge and laundering of overalls; • increase of 100% in retiring gratuity; • four weeks of sick leave per annum; • double time for all ordinary overtime and treble time for all work performed on Sundays and public holidays; • in addition to the appropriate penalty rate for work on public holidays, the granting of a day's holiday in lieu. In the discussions that have since taken place the Commission has emphasised that the claims in respect of a 35 hour week, annual leave, an industry allowance, overtime payments and compensation for work on public holidays should properly be determined by the Commonwealth Conciliation and Arbitration Commission.

From 17th to 22nd April, 1969, there was a strike by members of the Metal Trades Unions employed by the Commission in the Latrobe Valley in support of that part of the claim which seeks to restore to lower paid classifications the relativities which existed prior to the decision in the 1967 Metal Trades Work Value Case.

From the outset the Commission has pointed out to the Trades Hall Council that decisions which provide an up-to-date assessment of wages on a work-value basis must of necessity alter previous relativities and it would be illogical to adopt the highest work-value increase as the basis for increases to all classifications. The claim, if agreed to, would create further anomalies on a work-value basis. On 17th April, 1969, the dispute was reported to the Commonwealth Conciliation and Arbitration Commission pursuant to Section 28 of the Conciliation and Arbitration Act. During the proceedings before Mr. Commissioner Horan of the Commonwealth Conciliation and Arbitration Commission, he pointed out that there were no claims before him for determination and even if there were, matters such as the 35 hour week and the week's additional leave would have to be dealt with by the Presidential Bench of the Commission.

33 On 16th July, 1969, the Disputes Committee of the Trades Hall Council called for a strike by all affiliated unions on 6th August, 1969, if a satisfactory reply to the Log of Claims had not been received by that date. An offer was submitted to the unions for wage increases for certain lower paid classifications, an increase in shift premiums, additional sick leave and introduction of a superannuation scheme for wages employees. Despite these offers the Trades Hall Council Disputes Committee called a 24-hour stoppage of work from midnight on 5th August, 1969, necessitating severe power restrictions and shedding of load in several areas for short periods. As from 3rd September, 1969, the Trades Hall Council Disputes Committee placed a ban on all overtime by members of affiliated unions employed by the Commission in power stations, open cuts, terminal stations, workshops and on construction sites. From 5th September, 1969, the ban also applied to employees engaged in electricity distribution activities. At the date of this Report the ban had been reported to the Commonwealth Conciliation and Arbitration Commission.

Education and Training Scholarships awarded during the year and the number current at 30th June, 1969, were as follows: Scholarships Scholarships Awarded Current at DISABLING INJURY STATISTICS During Year 30/6/69 (Number of Disabling Injuries per million man-hours worked) At Universities ~ 60 Degree courses 7 31 Post-graduate studies 4 8 At Technical Colleges 50 l t\ 50 Diploma courses 6 16 \ Bursaries for Latrobe Valley students 5 18 I' ~ At High Schools 40 1\ Bursaries for female Latrobe Valley students 1 3 ~ \ Overseas scholarships 2 6 [\ Within the Commission 86 cadet engineers and surveyors and 28 engineering 30 ...... \. 30 and science graduates are receiving special training; 19 trainee linesmen and 107 I i nesmen-i n-trai n ing (junior) are undertaking courses at the ' Training School for Linesmen, and there are 815 apprentices in 26 trades. Special training schemes are also being conducted for commercial 20 20 personnel and for many employees engaged in a variety of technical pursuits. Seventy-five officers attended Middle Management Courses and 205 attended Supervisory Training Courses. 10 10

Accident Prevention

Veers ended 311111 June The Commission has continued with an energetic safety campaign for 0 0 industrial accident prevention. The graph alongside shows the steady 1960 '61 '62 '63 '64 '65 '66 '67 '68 1969 decline in the frequency rate of disabling injuries. The rate for the year ended 30th June, 1969, of 28 disabling injuries per million manhours worked was the lowest yet recorded in the Commission.

34 Public Safety and other Regulatory Responsibilities

Electric Light and Power Act 1958 There remain 13 electricity supply undertakings operating under this Act in Victoria. Of these, 11 are municipal undertakings in the metropolitan area receiving supply in bulk from the Commission, and one is a small undertaking in the far east of Victoria (Bendoc area) conducted by the adjoining New South Wales County Council. The only undertaking generating its own supply is at Mallacoota. Following the transfer of the undertakings at Ararat, Omeo and Stawell to the Commission the related Orders in Council were revoked. During the year the Governor in Council approved Orders as follows: Doncaster and Templestowe City Council - enabling bulk supply to be taken from the Commission's substation 'DC' in the City of Box Hill; Preston City Council - enabling bulk supply to be taken from the Commission's substation 'TT' in the Shire of Whittlesea; Footscray City Council - renewal of authority to supply in South Kingsville area ; Williamstown City Council - renewal of authority to supply in West Newport-East Altona area.

Licensing of Electrical Mechanics 13,784 licences were in force in the following grades: Grade 'A' 8,906 Grade 'Bl' . 138 Grade 'B' 2,043 Melbourne by night vividly illustrates Grade 'C' 2,697 the place of electricity in a modern metropolis. Each new multi-storey building uses more power than In addition 2,548 special conditional permits were issued. 1,000 homes. Three licensing examinations (including theory and practice) were held.

35 Registration of Electrical Contractors Registrations in force totalled 2,058, being 43 more than the previous year.

Electrical Approvals Board The Commission records its appreciation of the valuable contribution to safety rendered by members of the Board. In particular, reference is made to the services of the late Mr. A. Renshaw who represented the interests of electrical contractors and served on the Board for over 16 years, and Mr. W. H. Stock who retired from the Board after representing the Fire and Accident Underwriters' Association of Victoria since the inception of the Board 34 years ago. Mr. Stock was Deputy Chairman of the Board from 1942 until his retirement. Mr. R. W. Rose was appointed to represent electrical contractors until 30th June, 1970. Mr. A. W. Reynolds was appointed to represent the Fire and Accident Underwriters' Association and Mr. C. F. Baker was reappointed to represent the interests of workers in the electrical trade, for terms of three years. The Chairman of the Board, Mr. P. N. Engelman, was appointed to another position within the Commission and Mr. G. J. Gay was appointed Chairman in his stead. Mr. H. W. Reynolds of the Electrical Inspection Branch was appointed to act as Deputy Chairman of the Board. During the year 1,024 appliance prototypes were tested by the Board and approval given to 634. In addition 1,086 other articles were voluntarily submitted for testing.

Electrical Fatalities Of the 18 electrical fatalities during the year nine resulted from contact with overhead conductors, four from damaged or defective flexible cords, two from defective wiring, one from contact with live equipment and one from interference with fixed wiring. There was one suicide. The number of electrical fatalities has remained at a low level despite substantial increases in population and also in the use of electricity. The record of electrical safety in Victoria compares favourably with that in other developed countries.

Electrolysis Mitigation Conversion of the metropolitan electrolysis protection system to a modified straight drainage system continued. The number of pipes and cables laid underground since the conversion programme began has added to the complexity of the problem of mitigating electrolysis corrosion. The laying of high pressure natural gas pipelines has necessitated urgent action for their protection against corrosion. Investigations are being undertaken into cathodic protection as a means of protecting pipes and cables some distance from traction rails where a drainage system would be uneconomic. In December, 1968, legislation was enacted authorising the Commission to make regulations for the registration of, prescription of standards for, and control of the use of, cathodic protection systems designed to prevent corrosion of underground metal! ic structures (page 21). The Electrolysis Committee is drafting regulations in accordance with the provisions of the legislation to ensure that cathodic protection systems installed do not cause damage to other nearby underground structures.

36 Commissioners

Death of Sir Alexander Fitzgerald, D.B.E., B.Com., F.A.S.A., F.C.I.S.

The Commission records with profound sorrow the death on 22nd August, 1969, of Sir Alexander Fitzgerald, who retired on 18th July, 1969, after serving as a Commissioner for 14 years.

On various occasions during the absences of Dr. W. H. Connolly, Sir Alexander acted as Chairman of the Board.

The Commission was highly privileged to have the benefit of Sir Alexander's extensive knowledge and experience, and especially did this apply in the field of financial and business management in which he was widely acknowledged as being a pre-eminent authority. Over the years the Commission has enjoyed a reputation for sound financial management despite the acute difficulties which have been experienced from time to time, and the advice of Sir Alexander was invaluable in maintaining the financial control so necessary in such a large utility.

Throughout his term as a Commissioner Sir Alexander took a particularly keen interest in the education and training of Commission personnel both in the engineering and commercial spheres. There is no doubt that the success of the various training schemes conducted by the Commission today has resulted in no small measure from the encouragement and advice given by Sir Alexander and also from the example of his own outstanding academic achievements.

Sir Alexander, as one of this country's foremost accountants and author of a number of works on accounting theory and practice, held the highest posts in professional organisations of accountants and chartered secretaries. He was a lecturer in accounting at the University of Melbourne and later was appointed its first Gordon L. Wood Professor of Accounting.

Since 1955 he had been a member of the Board of Management of that University's Summer School of Business Administration. The high regard in which Sir Alexander was held in the business community was clearly demonstrated by the many other important public positions he had held.

37 As a fitting recognition of his outstanding service to the community he was awarded the Order of the British Empire in 1953 and in 1955 Her Majesty the Queen created Sir Alexander a Knight Bachelor. In 1967 he was presented with the Melbourne Rotary Vocational Services Award for outstanding service to the community and the following year he received the John Storey Medal presented by the Australian Institute of Management in recognition of his distinguished contribution to the development of scientific management in Australia. Sir Alexander was a member of the Council of the Melbourne Division of the Institute and served as Vice-President from 1957 to 1962. The Commission is deeply indebted to Sir Alexander for the contribution he made to its affairs through his wise and sound counsel at meetings of the Board to which he brought deep insight, a penetrating mind and a wealth of personal experience. At all times he exercised those outstanding qualities with the greatest courtesy and consideration towards others and was always prepared with complete selflessness to do whatever he could to advance the development of the electricity industry.

Appointment of New Commissioner The Governor in Council appointed Mr. C. R. Darvall, C.B.E., as a Commissioner for a period of five years from 19th July, 1969, in place of Sir Alexander Fitzgerald. Mr. Darvall has acted as a Deputy Commissioner on several occasions. During the last year he acted in this capacity from 6th August to 30th September, 1968, and from 29th May to 1st July, 1969, during absences overseas of the Chairman and Mr. Commissioner T. P. Scott.

The Chairman of the Commission, Dr. W. H. Connolly, attended a meeting of the International Executive Council of the World Energy Conference in Ankara, Turkey, on 1st to 3rd June, 1969. Dr. Connolly is Chairman of the Australian National Committee, World Energy Conference, and the immediate Past-President of the Conference.

Commissioners learned with considerable pleasure of the award to Dr. W. H. Connolly by The Institution of Engineers, Australia, of the Peter I'Jicol Russell Memorial Medal for 1968 in recognition of the notable contribution he has made to the science and practice of engineering in Australia throughout a lifetime of service as an engineer and administrator in the electricity supply industry.

38 Staff

Retirement of Deputy General Manager Mr. A. R. Shepley, B.E.(Civ.), B.Sc., F.S.A.S.M., F.I.E.Aust., M.A.I.M.M., Deputy General Manager, retired on 23rd December, 1968, after 17 years of distinguished service with the Commission. During this period Mr. Shepley filled a number of senior posts General Superintendent, Morwell; Assistant General Superintendent, Yallourn; Engineer for Design and Construction; Director of Engineering; Assistant General Manager (Engineering) culminating in August, 1966, in the highest appointment the Commission is empowered to make- that of Deputy General Manager. Since that date during any absence of the General Manager, Mr. Shepley acted in this post.

In 1967 Mr. Shepley represented the Commission on the nuclear and power trade mission invited by the Canadian Government to study nuclear developments in Canada, and also investigated progress in nuclear generation in the United States of America, United Kingdom and Japan.

Mr. Shepley was a valued member of senior engineering management during a period when there was great development of the Commission's generation and transmission system, and he made a most important contribution to the high standard of electrical service enjoyed by the State of Victoria.

Other Retirements of Senior Staff The Commission also records its appreciation of the splendid service rendered over long periods by the following senior officers who retired on the dates shown: Mr. P. M. Buchanan, Chief Electrical Inspector- on 27th September, 1968, after 41 years' service. Mr. F. L. Easterby, Education and Training Superintendent, Personnel Department on 4th October, 1968, after 45 years' service. Mr. A. C. S. Hughston, Construction Engineer, Power, Power Department - on 28th November, 1968, after 38 years' service. Mr. W. R. Whitehead, Deputy Chief Finance Officer, Finance Department­ on 31st December, 1968, after 44 years' service. Mr. J. H. Armstrong, Chief Safety Officer, Personnel Department on lOth January, 1969, after 39 years' service. Mr. J. H. Archer, Manager, North Eastern Branch, Electricity Supply Department - on 6th April, 1969, after 45 years' service. Mr. A. M. Thyer, Chief Engineer, Power, Power Department - on 15th April, 1969, after 41 years' service. Mr. J. S. Kerr, Chief Advocate, Personnel Department - on 1st July, 1969, after 46 years' service. Mr. A. H. Smith, Engineer and Manager, Electricity Supply Department on 7th September, 1969, after 44 years' service.

lt is with deep regret that the Commission records the death on 31st October, 1968, of Mr. N. E. Westmore, Dip.Civ.E., M.I.E.Aust., Assistant Chief Engineer, Fuel, after more than 41 years of valued service.

39 Higher Organisation The Commission's higher management was reorganised with effect from 24th March, 1969, as follows: • To relieve the Chairman and General Manager of the responsibility for day-to-day oversight of the Commission's activities and enable him to concentrate on the review and development of the Commission's basic objectives and policies, and provide overall direction to, and co-ordination of, the Commission's activities, the post of Deputy General Manager was established on a permanent basis with responsibility for day-to-day management of the Commission's undertakings. • The Assistant General Managers were assigned line responsibility for certain groups of departments to clarify responsibilities at this level, and to improve co-ordination between groups of departments with related interests. Consequential senior appointments were: Deputy General Manager Mr. N. R. White, M.E., F.I.E.Aust., formerly Assistant General Manager (Operations). Assistant General Manager (Generation and Transmission) - Mr. G. Paterson, B.C.E., F.I.E.Aust., A.M.A.S.C.E., formerly Assistant General Manager (Development). Assistant General Manager (Marketing and Distribution) - Mr. R. G. Chapman, B.C.E., M.I.E.Aust., M.I.C.E., formerly Chief Engineer, Planning and Investigations. Assistant General Manager (Administration) - Mr. J. C. Trethowan, B.Com., A.A.S.A., formerly Manager, Supplies and General Services Department. Mr. K. L. Murray, previously Assistant General Manager (Administration), who reached normal retiring age in May, 1968, agreed to remain with the Commission until special assignments upon which he is engaged are completed. In this capacity he has the title of Assistant General Manager.

The group of departments reporting to the Assistant General Manager (Marketing and Distribution) was reviewed, and as from 8th September, 1969, the functions of the Electricity Supply Department were re-arranged. Two new departments, the Distribution Engineering Department and the Distribution Services Department, were established with functional control of engineering and commercial activities (respectively) in the Electricity Supply Branches. The functional responsibilities of the Electricity Market Development Department and the Sales Department were extended to the promotion of electricity sales by the Branches. The Managers of the Electricity Supply Branches became directly responsible to the Assistant General Manager (Marketing and Distribution). Consequential appointments were: Chief Engineer, Distribution Mr. H. K. Richardson, B.E.E., B.Com., F.I.E.Aust., formerly Chief Distribution Engineer, Distribution Division, Electricity Supply Department. Manager, Distribution Services - Mr. G. C. Schroder, B.Com., formerly Manager, Commercial Division, Electricity Supply Department.

40 Other Senior Appointments Mr. H. W. Elliott - appointed Special Officer, Marketing Policies, as from 14th July, 1969; he was formerly Market Development Manager. Mr. W. F. De Campo, Dip.E.E., M.I.E.Aust. - appointed Market Development Manager, Electricity Market Development Department, as from 14th July, 1969; he was formerly Assistant Manager of the Department. Mr. P. M. Duncan, F.A.S.A., A.C.I.S. -appointed Manager, Supplies and General Services Department, as from 2nd June, 1969; he was formerly Regional Accountant, Latrobe Valley. Mr. R. A. Parrett, B.Mech.E., M.I.E.Aust. - appointed Chief Engineer, Power, as from 18th April, 1969; he was formerly Deputy Chief Engineer, Power. Mr. R. W. Urie, B.Sc., F.R.A.C.I., F.lnst.F., S.M.(Chem.Engrg.) M.I.T. - appointed Chief Engineer, Planning and Investigations, as from 28th April, 1969; he was formerly Chief Scientific Officer, Planning and Investigations Department.

Queen's Birthday Honours Commissioners learnt with pleasure that Her Majesty the Queen in the 1969 Birthday Honours had bestowed the award of Member of the Order of the British Empire upon Mr. W. G. Hide in recognition of his services over many years as the organiser of the Anzac Day march. Mr. Hide is Supply Superintendent in the Commission's Stores Division, Supplies and General Services Department.

The wide fields of activity referred to in this report have presented an immense challenge to all who have been associated with them. Increasing restiveness in industrial matters, intensifying competition from other sources of energy, associated with the need to design and operate an increasingly complex coal winning, generating and supply system are adding continually to the responsibilities of personnel in all sections of this vast undertaking The Commission therefore has real pleasure in again placing on record its appreciation of the efforts of so many of its personnel who have willingly accepted the responsibilities placed upon them. They can derive considerable satisfaction from the knowledge that in so doing they are making a most valuable contribution to the welfare and progress of the State.

We have the honour, Sir, to present this Report. W. H. CONNOLLY, Chairman. T. P. SCOTT, Commissioner. B. J. CALLINAN, Commissioner. C. R. DARVALL, Commissioner.

F. P. Chipperfield, Secretary. 11th September, 1969.

41

S.E.C. HISTORY IN THE MAKING Front bushland to power contplex

They're building again at Yal'lourn - a 700 megawatt power station with Aus­ tralia's first giant cooling towers (top) to be completed in 1973.

The first construction in the Latrobe Valley complex began in virgin bushland and the ceremony of turning the first sod (above) in February, 1921, was attended by, from left, Mr. C. H. Kernot, then Resident Construction Engineer; Mr. A. H. Merrin, later Secretary for Mines; Sir Thomas Lyle; Mr. R. Liddelow, the first staff officer appointed by the Electricity Commissioners, the Hon. George Sw1nburne; Sir John Monash; Sir Robert Gibson.

Mr. Liddelow, as Secretary from 1919 and Manager from 1931, had a leading role in every phase of the Commission's work until his retirement in 1951. 50 YEARS OF SERVICE

'' • • • a ntonument to every man who has shared in its creation.'' - forecast by Sir John Monash, 1921

THIS YEAR THE S.E.C. IS CELEBRATING 50 YEARS OF SERVICE TO THE PEOPLE OF VICTORIA- A GOLDEN JUBILEE TO BE PROUD OF.

Early in the century many leading The speedy report of the Brown Coal men proposed that our brown coal Advisory Committee prompted the resources should be exploited to make Premier, Sir Harry Lawson, to announce Victoria independent of imported fuel. a State electricity scheme in his policy Their efforts led to the appointment of speech in June, 1918. the Brown Coal Advisory Committee in The Electricity Commissioners' Bill March, 1917. was drafted by Sir Arthur Robinson, Soliicitor-General, who became our first Chairman of the committee was Dr. H. Minister. The Bill was passed the follow­ ing December, received Royal Assent in Herman, State Director of Geological January, 1919. Survey, who was to serve the S.E.C. for 20 years as Engineer-in-Charge, Briquet­ The Electricity Commissioners held ting and Research. Regarded as one of their first meeting on March 7, 1919. the fathers of the S.E.C., he was accom­ By November they had ready a scheme panied on the committee by: for brown coal winning and electricity • Mr. H. R. Harper, City Electrical generation in the Latrobe Valley, 90 Engineer, Melbourne City Counci I, the miles east of Melbourne. Commission's first Chief Engineer. Chairman of the Electricity Commis­ • Mr. F. W. Clements, electricity sioners was an outstanding scientist, supply pioneer and head of the Mel­ Sir Thomas Lyle. He came to Australia from Ireland in 1889 when appointed at bourne Electric Supply Co., who became 29 to the Chair of Natural Philosophy Chairman of the Commission in 1931. in the University of Melbourne, which • Mr. William Stone, Chief Electrical he held for 26 years. Engineer, Victorian Railways. The Hon. George Swinburne, another Commissioner, remembered now in the Institute of Technology he founded, was an Englishman whose administrative abi I ity and wide business experience were great assets. The third Commissioner, Sir Archibald McKinstry, was another lrishman, well qualified in engineering and science. After four months as a Commissioner he was succeeded by Sir Robert Gibson, a Scot, who became chairman of the Commonwealth Bank Board in 1926. Sir John Monash Mr. F. W. Clements Mr. G. G. Jobbins Dr. W. D. Chap­ Mr. R. A. Hunt Dr. W. H. Connolly (1921-1931) . Pre­ (1931-1937). A Com­ (1937-1949). Previous­ man (July, August, (1949-1956). Colourful (from 1956). First eminent as a scholar, missioner from 1926. ly Engineer and 1949). Engineer, career as engineer, Chairman to have engineer and soldier. Managing Director Manager, Electricity botanist, geologist. administrator and risen from rank of Pioneer in reinforced and Chief Engineer, Supply Department, Served in both world soldier. Won D.S.O. junior engineer. we~ I concrete construc­ Melbourne Electric from 1933. Transfer­ wars and became a as lieutenant in 1918. to Yallourn in 1921 tion. Commander, Supply eo. until it red to S. E.C. in 1930 brigadier. Commis­ Helped to build Yal­ from university. En­ Australian Army was acquired by from the Melbourne sioner 1944 and lourn, as Assistant gineer and Manager, Corps in France. S.E.C. in 1930. For Electric Supply Co. Deputy Chairman Construction Engin­ Electricity Sup pI y First general knighted 40 years engineer after 30 years ser­ from. May 11 to June eer and later as Department, 12 years. (1918) on the battle­ and administrator in vice, including some 30, 1949. Chairman Resident Engineer. Assistant General field since 1743. Gen­ electricity supply in years as Resident from July 1 until Mr. Genera I Superinten­ Manager from 1951. eral Manager, 1920. Victoria and else­ Engineer of the Gee­ R. A. Hunt took over dent, Yallourn, from President of World Chairman, January, where in Australia. long undertaking. on September 1. 1938 to 1949. Energy Conference 1921, on constitution from 1962 to 1968, of S.E.C. President, Victoria Institute of Colleges. The Chairmen who have guided the destiny of the Commission

1. The Yallourn open cut began in 7. Yallourn "A", the first brown coal 8. The first briquetting factory was 1920 with the construction of a levee power station in the world outside commissioned in 1925 with output bank by horse-drawn scoops. Mechani­ Germany, seen across the Latrobe River averaging 7,000 tons a month. The cal excavation started in February, 1921, at the old weir. The first four of the extended Yallourn installation and, since when a steam shovel dug drains at the six 12.5 megawatt sets began operating 1959, the Morwell factory, together now rate of 450 cubic yards a day - the in 1924, the fifth in 1925 and the last in produce H mi 11 ion tons a year. largest modern dredger wi 11 move 1.750 1928. "A" station closed down in 1968. cubic yards of overburden an hour. 2. Pioneering 132 kV transmission in the Southern Hemisphere, this is how the original towers from Yallourn to Melbourne were erected in 1922. With two legs hinged at the base, the com­ plete structure was winched upright. 3. Lyle House, headquarters of the Commission from 1922 to 1967, is on the Wi 11 iam Street site where one of Melbourne's founders, John Pascoe Fawkner, built his first dwelling in 1835. Lyle House, originally nine floors, was the first reinforced concrete office block in Melbourne and was completed in eight months. Two floors were added in 1936 and another in 1948. 4. Yarraville terminal station construc­ tion began in June, 1922. The metro­ politan terminal of the first transmission line from Yallourn, it is still an im­ portant station in the Commission's main distribution network. 5. Yallourn temporary power station, which supplied electricity to the con­ struction site from 1921, was also serving nearby Gippsland centres by 1923. Meanwhile, Newport "B" station, com­ pleted in 2~ years to 1923 with two 15 megawatt sets, was helping meet Mel­ bourne's growing demand. 6. To meet the needs of the vast new project the Commission built the town of Ya.llourn, which grew from this early street to 1,000 houses and a population of 4,000. In accordance with the Commission's long-range planning, the town will diminish from the 1980s to allow access to the brown coal deposits beneath. 4

9. Early coal winning in the Yallourn open cut was by 2} cubic yard steam shovel loading up to 100 tons an hour into horse-drawn side-tipping trucks for haulage to the power station. With one of the largest brown coal deposits in the world, the Valley has 10,000 million tons which can be won economically by today's methods. 10. The Commission is now Australia's largest electricity supply authority and men have been busy erecting power poles from the earliest days ... long before safety hats were the rule. The network now comprises 56,000 miles of power lines and each working day, on average, 11 miles of lines are built; a pole goes up every four minutes. 11. The first of the State's hydro stations, the Rubicon-Royston system, was opened in 1926, followed by bigger sets in 1928 and 1929. This is the original 13.5 megawatt Sugarloaf station completed in 1929 on the dam built by the State Rivers and Water Supply Com­ mission for Goulburn Valley irrigation. 12. Between 1930 and 1934 the S.E.C. acquired the Melbourne Electric Supply Co. with power stations at Richmond and Geelong, and the Electric Supply Co. of Victoria, with stations at Ballarat and Bendigo. Geelong's pioneer power station shown here started generating in 1901 and was retired in 1966. 13. In 1934, Victoria's centenary year, heavy rains caused the Latrobe River to burst its banks and flood the Yallourn open cut. In 20 weeks pumps on pon­ toons emptied the cut of 5,000 million gallons of water, in pllaces 200ft. deep. 14. The first of the three major dams built for the Kiewa hydro-electric scheme was Junction Dam, seen here under construction in 1943. Work began on the scheme in 1938 after many years of investigation. Delayed by the war and substantially modified, it was brought to its present stage in 1960. Two of its three stations are underground. 15. As the Commission coped with wartime problems in 1944, it also had to face a devastating bushfire around Yallourn which set fire to the open cut and caused the only power rationing of the war. This lasted only a few days, thanks to the way the crisis was tackled. 16. A bold venture by the S.E.C. to overcome shortages of timber and cement for vital construction projects in 1948 led to the purchase of the s.s. Uralba, a 600-ton wooden coastal vessel, and the chartering of smaller ships. When the situation eased in 1952, Uralba was laid up and later sold.

16 17. To meet plant shortages after 18. Yallourn "C" at the Latrobe River from Dederang to South Morang, near World War 11 the S.E.C. ordered in 1951 end of the power station was the first Melbourne. When the Snowy scheme is "packaged" thermal power stations from extension after the war. Its two 50 completed in the mid-1970s, Victoria's the United States for speedy erection. megawatt sets were ordered in May, entitlement will be about 1,100 mega­ They were completed by 1954 at North 1947, and the first unit went into service watts annually. Geelong (30 megawatts), Ballarat (20 in the winter of 1954. Yallourn "C" was 23. Yallourn open cut now has an megawatts) and Red Cliffs (10 mega­ completed in 1956. area of 1,737 acres at grass level and watts). Pictured at the official opening 19. Lake Eildon, with a capacity of has provided more than 270 million tons of Geelong "B" are the then Minister, 2.75 million acre-feet, is nearly nine of brown coal. After Yallourn "W" power Mr. John Galbally (left) and the Cam· times larger than the original reservoir. station is completed in 1973, the open mission Chairman, Mr. R. A. Hunt. The old Sugarloaf .power station is now cut output wi'i'l rise to nearly 19 million inside the dam and the new station (at tons a year. Helping coal production the foot on the left) went into service is the largest bucket chain dredger in in 1954 with two Sugarloaf units. Two the world which started digging at 60 megawatt generators were installed Yallourn in 1960. Its capacity is 1,750 in 1956 and 1957. tons an hour. 20. The Queen and the Duke of Edin­ 24. The last extension to Yallourn burgh visited Yallourn during their tour power station, "E" (right), consisted of of Australia in 1954. Leaving the open two 120 megawatt units installed in 1961 cut viewing pavilion is the Queen with and 1962. lt was the first to have only the then Chairman, Mr. R. A. Hunt, one boiler for each turbo-generator, followed by the Duke with Brigadier J. compared with two or three a set in Fie·ld, Yallourn General Superintendent. the older parts. 21. The Morwell undertaking was pro­ ducing electricity in 1958 and briquettes the following year. The power station has a capacity of HO megawatts and generates more than 1,200 million kilo­ watt-hours annually. The briquette factory has an output of more than 1.1 milll ion tons a year. 22. The first e1lectricity from the Snowy scheme was transmitted to Vic­ toria in 1959 by a 330 kV line to Dederang, the first in this State. Two 330 kV lines now carry Snowy power 25. The millionth consumer was con­ 28. Australia's first 500 kV trans­ nected in April 1964. He was a British mission line, from the Latrobe Valley, migrant, Mr. Brian Hatley-Smith, seen went into service last year but will here with his wife being congratulated operate as a fourth 220 kV Hne unti I by the Manager, Eastern Metropolitan 1970. A second 500 kV line will go Branch, Mr. Austin Crawford'. into service in 1971. 26. The first Hazelwood generating 29. Hazelwood power station, the unit went into service in the winter of Commission's largest project so far, 1964. When completed in 1970. Hazel­ symbol of 50 years progress in electri­ wood wi 11 have eight 200 megawatt city generation and service to Victoria. generating units. Coal is supplied by belt conveyors from Morwell open cut. 27. Staff began moving into Monash House, the new Head Office in William Street opposite Lyle House, late in 1966. Monash House has 23 floors and rises over 264 ft. above pavement level. Statistics

Page Number Ten Years of Financial Statistics 44 Ten Years of General Statistics . 46 Revenue Account Supplementary Information 48 Balance Sheet Supplementary Information 51 Capacity of Generators and Boilers Installed 55 Generation of Electricity ... 58 Load Factors and Fuel Used - S.E.C. Power Stations 60 Brown Coal and Briquette Production 62 Transmission and Distribution Systems 64 Victorian Electricity Supply Undertakings- Summary of Consumer and Sales Statistics 65 Consumer Statistics 66 Electricity Sales and Income 67 Metropolitan and Country Electricity Supply Undertakings (Municipal and Private) 68 Statistical Summary 69 Schedule of Standard Tariffs 70 Map of Victorian Electricity Supply System . Back Cover

43 Ten Years of Financial Statistics

REVENUE ACCOUNT 1969 1968 $m $m Operating Income- Electricity Sales 202·394 184· 865 Briquette Sales 13·253 12·467 Brown Coal Sales ·771 ·734 Tramways ·265 ·266

216·683 198·332 Deduct- Operating Expenditure 145 ·419 134·997 EXCESS OF OPERATING INCOME OVER OPERATING EXPENDITURE 71·264 63·335 Deduct- Interest 47·961 45.517 Loan Flotation Expense and Miscellaneous 1. 121 2·760 Deferred Interest and Other Expenditure on Works under Construction Written Off Additional Depreciation of Briquette Factories 6·000 6·000 Provision for Accruing Long Service Leave and Retiring Allowances 6·000 Statutory Transfers to Consolidated Revenue of Victoria 6·982 6·603 BALANCE OF INCOME USED FOR CAPITAL WORKS 3·200 2·455

BALANCE SHEET

Fixed Assets Expenditure 1270·640 1184·271 Deduct- Provision for Depreciation 329·162 293·943

Fixed Assets (Depreciated) 941·478 890·328 Current Assets 47·436 48·177 Investments 48·436 43 ·195 Long Term Debtors and Deferred Charges 4·120 4·163

TOTAL ASSETS 1041·470 985·863

Capital Liabilities 871·305 834·595 Deferred Liabilities and Provisions 99·468 86·791 Reserves 37·334 31·727 Current Liabilities 33·363 32·750

TOTAL LIABILITIES 1041·470 985·863

44 1967 1966 1965 1964 1963 1962 1961 1960 $m $m $m $m $m $m $m $m

168 ·131 156·308 143·934 127 ·868 116·149 104·032 100·741 93·240 12·519 12·270 12· 524 11·292 10·342 8·894 8·772 5·950 ·733 ·722 ·746 ·718 ·646 ·806 1. 114 1·494 ·282 ·248 ·230 ·244 ·210 ·196 ·202 ·200

181·665 169· 548 157·434 ] 40·122 127·347 113 ·928 110·829 100·884

128-428 119·855 111·222 103·398 92·413 84·764 80·335 70·142 ------

53·237 49·693 46·212 36·724 34·934 29·164 30·494 30·742

41·758 39·069 36·308 34·] 46 31·858 28·948 25·948 23·708 1·668 1·930 1·296 1·372 1·432 1·692 1·606 1·614

2·552 ·500 1·016 2·500 4·500 4·000 5·000 2·000

5·549 ·526 ·475

·262 3·168 3·581 ·706 ·628 1·476 ·440 ·920 (loss)

1098·844 1009·124 926·787 856·928 791·956 737·632 679·883 632·238

260·398 226·691 192·024 167·468 144·212 123·226 104·768 87·706

838·446 782·433 734·763 689·460 647·744 614·406 575·115 544·532 41-409 39·474 36·122 31·766 30·190 27·278 27·238 25·268 55·448 55·325 54·784 44·052 36·602 25·448 20·026 11·966 5·873 5·835 6·276 9·896 9·766 9·206 9·896 9·190

941·176 883·067 831·945 775·174 724·302 676·338 632·275 590·956

798·279 753·508 717·805 680·704 642·731 601·856 562·668 528·152 80·779 72·422 60·239 49·395 38·441 30·875 27·353 23·482 27·732 31·473 27·437 23·646 22·492 21·244 22·289 21·436 34·386 25·664 26·464 21·429 20·638 22·363 19·965 17·886

941·176 883·067 831·945 775·174 724·302 676·338 632·275 590·956

45 Ten Years of General Statistics

1969 1968 ELECTRICITY PRODUCTION AND SALES

Installed Generating Capacity (Nameplate Rating) MW 3,336·8 3,120·8 Maximum Coincident Demand on Interconnected System (Winter) MW 2,387·0 2,429·0 Overall Electricity Generated (incl. Purchases) GWh 12,867·7 11,935·0 Overall Electricity Sales* GWh 10,554·4 9,716·3 Number of Consumers (excl. Bulk Supplies) 981,535 944,434 Average kWh Sold per Consumer*- Domestic kWh 3,750 3,474 Commercial kWh 10,797 9,833 All Consumers (excl. Bulk Supplies) kWh 7,714 7,583 Average kWh Sold per Head (Victoria) kWh 2,910 2,796 Average Price per kWh Sold*- Domestic c. 2·09 2·04 Commercial c. 3·32 3·29 Industrial c. 1·74 1·63 All Consumers (excl. Bulk Supplies) c. 2·10 2·00 All Supplies c. 1·91 1·88 Farms Served 72,505 70,610 *These figures do not include allowances for unread meters

BRIQUETTES

Produced Tons 1,471,328 1,744,948 Sold and Used in Power Stations Tons 1,629,894 1,704,831

BROWN COAL PRODUCED

Yallourn Open Cut Tons 11,889,642 11,979,824 Yallourn North Open Cut Tons 458,737 418,243 Morwell Open Cut Tons 10,117,377 10,122,668 TOTAL Tons 22,465,756 22,520,735

TRAMWAY PASSENGERS 3,237,291 3,537,177

46 1967 1966 1965 1964 1963 1962 1961 1960

2,895·7 2,395·4 2,287·7 1,887·7 1,898·2 1,854·6 1,657·5 1,459·5

2,171·0 2,037·0 2,013·0 1,793·0 1,711·0 1,477·8 1,322. 5 1,320·3 11,208·8 10,281·1 9,674·7 8,666·9 7,723·4 6,889·1 6,607·0 6,118·9 9,143·7 8.354·8 7,873·6 7,019·6 6,171·4 5,447·9 5,282·6 4,881·6 911,038 876,345 842,062 804,253 775,020 743,176 712,363 679,917

3,433 3,293 3,214 3,049 2,881 2,699 2,741 2,584 9,297 8,694 8,144 7,648 7,I45 6,644 6,500 5,949 7,441 7,186 7,I20 6,590 5,830 5,323 5,364 5,168 2,687 2,548 2,474 2,253 2,013 1,811 1,797 1,704

2·00 2·02 1·96 1·95 1·97 1·98 1·98 2·00 3·22 3·25 3·24 3·20 3·24 3·25 3·28 3·32 I· 58 1·57 1· 52 1·56 I·73 1·81 1·83 1·84 1·94 1·94 1·89 1·90 2·00 2·04 2·05 2·05 1·83 1·86 I· 81 1· 81 1·87 1·90 1·90 1·90 67,608 64,001 60,415 56,412 52,985 49,506 46,838 44,079

1,820,120 1,882,814 1,892,759 I ,882,626 1,805,347 1,8I9,937 1,806,619 974,670 1,793,742 1,825,567 1,877,880 1,891,976 1,785,271 I ,844,351 1,733,554 951.684

13,080,772 13,765,815 13,944,456 13,488,000 12,892,693 12,456,478 11,864,704 10,911,827 422,596 428,689 459,826 597,164 477,736 486,618 840,908 1,323,913 8,479,607 6,872,487 4,597,514 4,080,103 3,873,916 3,298,318 2,515,773 1,013,756 21,982,975 21,066,991 19,001,796 18,] 65,267 17,244,345 16,241,414 15,221,385 13,249,496

3,860,604 4,332,771 4,727,654 4,945,140 5,583,118 6,004,520 6,071,150 6,200,929

47 Revenue Account Supplementary Information

FOR THE YEAR ENDED 30th JUNE, 1969

A. RE-STATI:ME~T OF REVE~UE ACCOUNT AS ELECTRICITY BUSI~ESS WITH SUBSIDIARY COAL, BRIQUETTES AND TRAMWAYS SALES AND SERVICES

Last Year s s Income from Sales of Electricity 202,393,866 184,864,913

Expenditure Transmission Generation and Distribution $ $ Brown Coal and Briquettes (Total expenditure, incl. capital charges and overheads, less income from sales) 25,211,179 25,211,179 27,385,152 Purchased Fuel 217,754 217,754 541,953 Purchased Electricity 8,906,103 8,906,103 8,801,752 Operation and Maintenance 18,499,812 23,855,176 42,354,988 37,803,088 Interest (Direct) 17,589,120 23,777,654 41,366,774 38,459,707 Depreciation (Direct) 17,114,142 15,806,139 32,920,281 30,279,249 Administration, Customers' Accounting, Marketing and Sales Promotion 3,822,346 14,198,637 18,020,983 15,616,232 Employees' Service Benefits, Accommodation and General Services 5,946,309 3,734,154 9,680,463 7,815,710 Loan Flotation Expense 220,100 259,900 480,000 959,400 97,526,865 81,631,660

Tramways Expenditure (Net after deduction of Income $265,575) 478,152 487,035 Miscellaneous Expenditure (Net after deduction of Income $155,558) 575,696 677,507 Loan Raising Expenditure Temporarily Capitalised now Written Off 979,930 Additional Depreciation of Briquette Factories 6,000,000 6,000,000 Provision for Accruing Long Service Leave and Retiring Allowances 6,000,000 Provision for Statutory Transfers to Consolidated Revenue of Victoria- On Gross Income 6,300,000 5,700,000 Under Provision in 1967/68 120,000 340,000 On Brown Coal Production . 561,644 563,018 $199,194,017 $182,409,733

BALANCE OF INCOME USED FOR CAPITAL WORKS $3,199,849 $2,455,180

48 B. CAPITAL CHARGES Last Year $ $ $ INTEREST

On Capital Liabilities 46,755,439 44,685,239 On Advances for Capital Works incl. Provident Fund and Municipalities 5,188,127 4,839,138 On Current Liabilities 26,325 18,463

51,969,891 49,542,840 Deduct: Interest earned on Investments 3,031,208 3,027,202

$48,938,683 $46,515,638 Allocated to­ Revenue Account- Generation, Transmission and Distribution 41,366,774 38,459,707 Coal and Briquette Production 3,340,625 3,777,431 Service Facilities 3,254,110 3,280,240

47,961,509 45,517,378 Fixed Assets-Component of charges for services 977,174 998,260

$48,938,683 $46,515,638

DEPRECIATION

Depreciation in accordance with pre-assessed asset lives (adjusted when necessary) has been allocated to­ Revenue Account- Generation, Transmission and Distribution 32,920,281 30,279,249 Coal and Briquette Production 5,344,057 7,677,803 Service Facilities 4,694,293 3,508,422

42,958,631 41,465,474 Additional Depreciation of Briquette Factories 6,000,000 6,000,000

48,958,631 47,465,474 Fixed Assets-Component of charges for services 1,291,256 1,189,214

$50,249,887 $48,654,688

I~OAN FI"OT ATION EXPENSE This expense has been allocated to­ Revenue Account- Generation, Transmission and Distribution 480,000 959,400 Coal and Briquette Production 65,500 143,200 Unamortised Expense of previous years written off 979,930

$545,500 $2,082,530

49 C. GENERAL OVERHEADS

ADMINISTRATION AND GENERAl, EXPENSES

This overhead including Customers' Accounting, Marketing and Sales Promotion Expenses has been allocated to-- Last Year $ $ Revenue Account 18,718,943 16,433,626 Fixed Assets 1,372,054 1,533,261

$20,090,997 $17,966,887

EMPLOYEES' SERVICE BENEFITS, ACCOMMODATION AND GENERAL SERVICES This overhead, which includes Superannuation Contributions, Long Service Leave and Retiring Allowance Payments, Training and Education, Safety, Medical, Recreational, Bus Services, Townships and Housing, Hostels, Bush Fire Prevention and other Latrobe Vlllley and Kiewll Area Services, has been allocated to-- Revenue Account 9,944,375 8,898,371 Fixed Assets 1,180,063 1,253,779

$11,124,438 $10,152,150

D. MISCELLANEOUS EXPENDITURE

Brown Coal Investigations 268,352 314,795 Electrical Inspection and Regulation for State of Victoria 282,822 245,194 Other Expenditure and Income . 24,522 117,518

$575,696 $677,507

50 Balance Sheet Supplementary Information

AS AT 30th JUNE, 1969

A. MATERIALS AND FUEL 30/6/69 30/6/68 $ $ Construction and Maintenan:::e Stocks 9,522,609 9,798,546 Briquettes, coal and fuel oil 1,587,240 3,593,710 Electrical and fuel appliances for sale 1,239,817 758,954 Manufactures in progress 220,992 230,469

$12,570,658 $14,381,679

B. INVESTMENTS

Other Government Securities Securities Total and Deposits Cost (Short Term Face Cost Money Market Value and Banks)

$ $ $ Specific Investments- Loan Sinking Fund . 12,405,193 12,405,193 I I ,852,958 12,404,600 Contractors' and Consumers' 1 Deposits 56,261 32,300 30,835 32,300 23,961

"Self-help" Contributions Unexpended 8,250,000 General Investment of Reserves 26,724,123 25,933,206 26,497,602 9,250,898 and Provisions 27,725,021

48,436,475 39,161,616 37,816,999 38,934,502 9,274,859

51 C. FIXED ASSETS SCHEDULE - Expenditure for Year and Total at 30th June, 1969

LA TROBE VALLEY ELECTRICITY SUPPLY OTHER AREAS DEPARTMENT AND GENERAL ALL AREAS

New I Total at New Total at New Total at New Total at I Expenditure 30/6/69 Expenditure 30/6/69 Expenditure 30/6/69 Expenditure 30/6/69 $ $ $ $ $ $ $ $ Coal Production System- 4,766,685 72,646,673 4,766,685 72,646,673 Briquette Production and Storage- Yallourn Briquette Factory .. . . 101,650 7,855,320 I Morwell Briquette Factory .. - 30,637,108 Briquette Storage .. 27,157 299,954 55,871 3,830,174 184,678 42,622,556 Power Production- Thermal- Yallourn . . .. 199,954 106,011,931 Morwell .. . . 1,325 40,862,230 Hazelwood .. .. 36,322,400 193,438,318 Yallourn West .. 3,693,572 5,632,139 Newport . . .. 23,886 21,762,606 Richmond .. .. 4,314 6,921,312 Gee long . . .. 7,926,372 Ballarat . . .. 6,362,781 Mildura-Red Cliffs (Incl. Internal Corn- bust ion) . . .. 4,121,513 40,245,451 393,039,202 Hydro- Kiewa . . .. 88,050 70,297,339 Eildon and Mountain Streams .. . . 8,892,592 88,050 79,189,931 Transmission System- 2,680,743 26,326,642 24,119,747 241,639,634 26,800,490 267,966,276 Distribution System- Metropolitan .. 7,549,949 78,913,117 Provincial & Country Branches .. .. 19,225,977 233,322,361 26,775,926 312,235,478 General Offices, Stores, Workshops, etc. 154,652 13,520,011 790,889 21,900,434 945,541 35,420,445 General Plant and Equipment .. .. 319,866 1,648,642 1,205,606 13,088,309 I ,525,472 14,736,951 General Accommodtn. INCLUDED IN Townships, Hostels, etc ...... 132,866 8,498,795 DISTRIBUTION 15,291 867,539 148,157 9,366,334 General Miscellaneous Services (Roads, SYSTEM Railways, Sewerage, Electricity, 'Phones, Fire Services, etc.) 816,414 19,874,714 1,308,820 9,821,198 2,125,234 29,695,912 ------Total Cost of Fixed Assets . . .. 49,217,284 527,252,4 77 26,775,926 312,235,478 27,612,474 417,431,803 103,605,684 1,256,919,758 Deduct- Provision for Depreciation .. 157,491,975 42,147,027 129,522,722 329,161,724 Depreciated Cost of Fixed Assets .. 49,217,284 369,760,502 26,775,926 270,088,451 27,612,474 287,909,081 l 03,605,684 927,758,034 Add- Development of Open Cuts- Balance of Cost 110,510 13,719,891 110,510 13,719,891 ---- TOTAL .. .. $ 49,327,794 383,480,393 26,775,926 270,088,451 27,612,474 287,909,081 103,716,194 941,477,925 The cumulative Depreciation Provision movements were:­ $ Balance at 30th June, 1968 293,942,911 Add-Provision for year to 30th June, 1969 49,743,711* 343,686,622 Deduct-Retirements and adjustments applied during year 14,524,898

Balance at 30th June, 1969 $329,161,724 *Excludes $506,176 amortisation of development of open cuts. 52 D. CAPITAL LIABILITIES INSCRJBI<:D STOCK AND DEBENTURES $ Balance at 30th June, 1968 611 '177,960 Issues during year ended 30th June, 1969 76,405,770

687,583,730 Deduct-Redeemed or repaid during the year 54,574,813 *

Balance at 30th June, 1969 $633,008,917

*Includes $50,682,300 in respect of maturing private and public loans (of which $27,513,100 was con­ verted) and $1,023,860 maturing area loans. The Commission stock and debenture borrowings are subject to sinking fund provisions (unless otherwise approved by the Governor-in-Council), but, because of their comparatively short currency, there remain at maturity substantial balances to be reborrowed in the form of conversions and new subscriptions in renewal loans, or to be redeemed from the Commission's internal funds. As at 30th June, 1969, the Commission's stock and debenture liability, in years of maturity, is: $ $ 1969/70 46,213,000 1973/74 33,582,000 1970/71 42,751,000 1974/75 45,297,000 1971/72 47,003,000 1975/76 33,296,000 1972/73 40,767,000 Later Years Balance The sinking fund for redemption of Commission Stock and Debentures stands as follows: $ Balance at 30th June, 1968 21,981,601 Add-Sinking Fund requirements for the year ended 30th June, 1969 5,327,097

27,308,698 Deduct-Amount attributable to loans wh\ch matured during the year 3,374,820

Balance at 30th June, 1969 $23,933,878 At the 30th June, 1969, this fund consisted of the following: Investments at face value 12,404,600 Loans re-purchased in the open market, and repaid prior to maturity 10,956,117 Moneys temporarily employed in the business 573,161

$23,933,878

VICTORIAN GOVERNMENT ADVANCES $ $ Balance at 30th June, 1968 223,417,569 Advances during year ended 30th June, 1969- New Loans 17,000,000 Loan Flotation Expense-new and renewal loans 82,018 17,082,018

240,499,587 Deduct-Repayments during the year (increase in Commission's equity in National Debt Sinking Fund) 2,203,263

Balance at 30th June, 1969 $238,296,324

Victorian Government advances are repaid over periods of 53-58 years through annual contributions to the National Debt Sinking Fund, including those paid by the Commonwealth Government. * * * Sinking Fund requirements in respect of both Inscribed Stock and Debentures and Victorian Government Advances are met from the depreciation provision. The remainder, by far the larger part of depreciation moneys, is invested in fixed assets.

53 E. GENERAL RESERVE $ Balance at 30th June, 1968 25,467,484

Add-Contributions by the Commonwealth Government. etc .. to the repayment of Victorian Government Advances less charges in connection with the repay­ ments levied by the National Debt Sinking Fund 459,819

Balance of Income transferred from Revenue Account for year ended 30th June, 1969. and used for capital works 3,199,849

Balance at 30th June. 1969 $29,127,152

F. CAPITAL COMMITMENTS

Outstanding contract commitments for capital expenditure at 30th June, 1969, not taken up in the accounts are estimated at $142m. (1968 $164m.).

54 STATE ELECTRICITY COMMISSION OF VICTORIA STATE GENERATING SYSTEM

(a) TOTAL INSTALLED PLANT CAPACITY MW Manufacturers' maximum continuous rating of plant installed at 30/6/69 2,737·815 Add-Available from Hume Power Station 25·000 ,. Snowy Scheme 569·000

Total 3,331·815

(b) GENERATORS INSTALLED AT POWER STATIONS at 30th June, 1969

• Maximum Power Station Set Make Continuous Voltage Year Installed No. Rating STEAM- MW kV Hazel wood ...... I & 2 Associated Electrical Industries 200·000 16·5 1964. 1965 3 to 6 Parsons 200·000 16·5 1966,1967,1968, 1969 1,200·000

Yallourn ...... 5&6 12·500 11·0 1925, 1928 7 to 10 {Metropolitan Vickers 25·000 11·0 1932, 1935, 1938 (2) Cl & C2 50·000 11·0 1955, 1954 C3 ]Parsons 6·000 3·3 1956 Dl & 02 50·000 11·0 1958, 1957 El & E2 Associated Electrical Industries 120·000 13·8 1962, 1961 ---·· 571·000 Yallourn Briquette Factory .. .. I General Electric 1·500 6·6 1923 2 & 3 English Electric 10·000 11·0 1931 (2) 21·500 Newport ...... A2* & A4* 30·000 20·0 1943, 1951 1&2 15·000 6·6 1923 (2) }·'~00' 30·000 4 Parsons 22·0 1945 5 to 7 30·000 11·0 1946, 1948, 1950 8 Brush Ljungstrom 18·000 6·6 !944 228·000

Morwell ...... I 20·000 11 ·0 1958 } Metropolitan Vickers ! 2 to 4 30·000 11·0 1958, 1959 (2) 5 Stal-Laval 60·000 11 ·0 1962 170·000

Richmond ...... 2 Brown Boveri 38·000 11·0 1952 Geelong "B" ...... Bl to B3 Westinghouse 10·000 11·5 1953, 1954 (2)

30·000 i Ballarat "B" ...... Bl to B4 Westinghouse 5·000! 6·9 1954 (2), 1953 (2) 20·000 Red Cliffs "C" ...... Cl & C2 Westinghouse 5·000 6·9 1954 (2) 10·000 Spencer St. (Melbourne City Council) 6 Parsons 5·500 6·6 1935 7&8 A.S.E.A. 6·875 6·6 1939 (2) 9 & 10 15·000 6·6 1949, 1954 11 & 12 }Parsons 30·000 22·0 1953, 1959 109·250

* 25-cycle

55 I Maximum Power Station Set Make Continuous Voltage Year [nstalled No. Rating ········· MW kV

INTERNAL COMBUSTIO!':-

Red Cliffs "B" ...... B1 to B3 Electric Construction Co. 1·850 6·6 1957 (3) (Sulzer Engine) 5·550

--~-

HYDRO-

McKay Creek (Kiewa) .. . . I to 6 Metropolitan Vickers 16·000 11 ·0 1960 (6) West Kiewa ...... 1 to 4 Metropolitan Vickers 15·400 11·0 1956, 1955 (3) (Boving Turbine) Clover (Kiewa) ...... 1&2 English Electric 13·000 11·0 1944. 1945

183·600

Eildon ...... 1&2 British Thomson-Houston 60·000 11 ·0 1957, 1956 (Boving Turbine) 3 &4 Brown Boveri (Boving Turbine) 8·000 6·6 Re-installed 1954 (2)

Rubicon ...... 1&2 4·550 6·6 1928 (2) Lower Rubicon ...... 1 Westinghouse 2·700 6·6 1928 (Boving Turbine) Royston } 0·840 6·6 ...... I 1928 R ubicon Falls ...... I A.S.E.A. (Boving Turbine) 0·275 6·6 1926 148·915

-~-- Cairn Curran ...... 1 Boving 2·000 3·3 1960

12,737-Sll

56 (c) BOILERS INSTALLED AT POWER STATIO~S at 30th June, 1969

Rated Working Total Steam Boiler Evaporative Pressure of Temperature Power Station No. Make Capacity of each Boiler including Year Installed each Boiler lb (gau~e) Superheat lb. per hour per sq. m. Deg. F. -··

Hazel wood .. l to 6 Babcock & Wilcox I ,650,000 1,600 1,055 1964, 1965, 1966, 1967, 1968, 1969

Yallourn .. .. 13 to 22 ' 75,000 270 750 1931 (2), 193 7 (2), 1938 (2), I 1937 (2), 1932 (2) I ~John Thompson Cl to C6 200,000 645 840 1955 (2), 1956, 1957, 1954 (2) I DJ to 06 j 200,000 645 840 I 958 (2), 1959 (2), 1958 (2)

El &E2 Babcock & Wilcox 950,000 1,600 1,060 1962, 1961

Yallourn Briquette Factory .. I to 4 18,000 260 650 1924 (4) }Babcock & Wilcox 5 33,500 650 750 1928

6 to 9 John Thompson 58,000 650 750 1931 (4)

Newport . . .. AIM to A4M International Combustn. 187,500 400 780 1952, 1951, 1943 (2)

6 to 10 60,000 270 750 1939 (5) }John Thompson !I to 18 160,000 620 820 1945 (2), 1947, 1948, 1950(3), 1949

Morwell .. . . I to 8 Mitchell Engineering 235,000 1,300 932 1960 (2), 1961 (2), 1959 (2), 1958 (2)

Richmond .. Velox Nos. I & 2 Brown Boveri 165,500 650 850 1953, 1952

Geelong .. . . BI to B3 Combustion Engineering I 10,000 625 825 1953, 1954 (2)

Ballarat .. .. Bl to B4 Combustion Engineering 70,000 430 760 1954 (2), 1953 (2)

Red Cliffs .. Cl &C2 Combustion Engineering 70,000 430 760 1954

Spencer Street .. 10, 12, 14,16 55,000 160 570 1937, 1939, 1940, 1936

(Melbourne City Bl & B2 150,000 275 1954, 1955 }John Thomp•oo 775 Council) .. Cl 300,000 620 820 1953

C2 J 270,000 600 825 1959

57 STATE OF VICTORIA GENERATION OF ELECTRICITY

State Electricity Commission of Victoria Interconnected System

Spencer Street Station Yallourn* Morwell Hazelwood Newport Richmond (Melbourne Gee tong Ballarat+ City Council)

I ' • M.D. M.D. Year GWh I ~·&· G':_l ~·&· • GWh ~·-j!i&_ GWh ~·~~~_:v~-~~&· GWh _i\_·_&_··-J···G·-W·-h-~-'~-~-;-~__d_ _G_W_h___ m_'~_a;_e~----·· --··-······---- 1 1 Operation Operation Operation Operation "A" Station Station1 "A" J!ati?n "A" Station commenced commenced commenced commenced acquired and operated as acquired 15.6.24 7.12.58 1.10.64 12.10.23 reconditioned. part of State I ···:~if 1.7.34 and Newport "An Restarted system from :"': retired acquired 21.1.51 6.5.29 1.1.41 18.12.61 and retired 27. 11.68 1925-26 143·6 37·500 46·0 16·000

1926-27 240·3 6!·000 45·4 19·800 1927-28 321·1 68· 500 54·3 20·800 1928-29 305·7 64·000 49·0 20·000 3· 5 15·000 1929-30 312·7 62· 500 50·8 21·000 21·9 16·200 1930-31 257·9 63·000 38·4 19·800 26·6 15·520 iil s 5·570

1931-32 333·7 81·500 9·8 18·800 25·7 15·000 26·9 6·510 1932-33 400·8 90·600 2·8 14·400 22·5 15· 360 27· I 6· 560 1933-34 444·6 96·700 7·6 18·500 22·6 15 ·120 29·5 6·690 1934--35 322·8 95.500 54·0 18·200 56·5 15·500 30·8 6·980 12·7 3·711 1935-36 505·3 109·600 16·7 19·300 29·8 IS· 100 34·1 7·930 13·2 3·825

1936-37 549·4 123·600 27·2 19·000 25.3 15·400 32·1 7·930 12· 5 3·750 1937-38 675·6 142·800 27·1 18·600 24·2 15·300 34·4 8·620 10·0 3·797 1938-39 717·0 138·400 23·9 19·600 26·7 15·200 38·0 9·230 9·4 2·716 1939-40 797·1 170·450 39·3 35·000 16·2 15·400 31·5 7·710 11·6 2·988 1940-41 961·0 173·150 44·6 45 300 21·2 15·360 21·7 10·050 14·3 3·820

1941-42 1,047·9 tR9·350 45·2 54·800 35·2 15·540 44·1 35·000 30·7 10·600 14·6 4·140 1942-43 1,130·9 188·400 45·8 63·000 38·6 15·600 55·4 33·000 34·3 11.800 15·0 5·960 1943-44 1,108·2 190·250 83·3 71·600 44·5 15·600 63·8 40·650 44·8 12·200 20·8 5·400 1944--45 1.154·6 188·300 92·1 89·500 40·2 15 ·530 59·3 35 ·070 38·8 11·200 18·9 5·000 1945-46 1,162·6 195·900 136·9 93·500 33·1 IS ·600 SS·O 34·200 31·2 11·900 16·0 5·350

1946-47 1,206·9 189.780 181·6 88 ·000 23·5 15 ·520 51· I 29·820 26·9 11·800 18·0 5. 150 194748 1.255. 6 199·100 299·0 134·000 29·6 15·400 66·3 34·500 33 ·I 11·750 18·8 5·650 1948-49 1,323·5 195.500 513·6 138·000 26·1 15·600 77·0 35 ·220 32·9 11.800 18·8 5·850 1949-50 1,320· 3 190·200 717·8 175·000 26·6 15·600 105·4 41·910 28·6 11 ·950 15·6 6·000 1950·51 1,271·4 191·000 990·5 242·800 19·5 15·000 105·6 38·700 30·6 11·400 16·7 6·100

1951-52 1,316·1 199·400 1,085·5 249·400 28·7 14·800 94·2 39·450 45·8 12·100 5·900 195253 1,359·4 205·500 1,205·2 305 ·000 72·2 52·000 93·6 35·400 46·1 12·000 6·000 1953-54 1,427·3 245·200 1,322·7 304·400 202·0 51·900 212·4 73·000 103·6 47·400 29·800 1954--55 1,701·6 264·000 1,249·9 303·000 175·2 52·000 306·6 83·000 182·0 47·200 31·850 1955-56 1,920·8 283·100 1,278·7 298·400 200·1 52·500 269·3 94·000 178·6 47·700 31·500

1956-57 2,117·6 316·100 1,408·7 316·400 206·4 52·000 273·0 95 ·000 200·2 46·800 57·8 31·900 1957-58 2,186·5 337·500 1,517·6 303·200 212·1 53·000 260·0 94·000 211·8 48·400 61·5 31·200 1958-59 2,777·0 410·600 158·4 63·000 1.272·8 301·400 147·4 53·500 286·5 120·000 149·7 49·000 51·8 30·800 1959-60 2,951 ·7 413·900 496·6 100·000 1,182·5 286·800 180·5 53.500 352·6 125·000 148·7 48·400 57·6 26·000 1960-61 2,951·8 518·600 700·7 115·000 1.325·5 278· 200 75·2 53·400 242·2 118 ·000 136·9 47·600 69·3 25·600

1961-62 3,646·3 629·600 809·7 127·000 1,119·2 268·000 21·1 44·500 154·8 90·000 75.5 35 ·000 67· 2 21·500 1962-63 4,141·2 640·500 1,010·8 182·000 901·7 264·600 23·2 39·000 180·5 90·000 41·7 32·400 4·6 21·000 1963-64 4,296·1 645 ·000 1,157·4 178·000 1,052·1 273·400 70·8 39·500 372·1 101·000 53·3 36·700 11·3 25·700 1964-65 4,429·6 661·000 1,055·7 175·000 735·6 41o·ooo 857·2 273·400 42·9 39·500 255·2 101·000 42·4 37·300 14·4 25·800 1965-66 4,423·6 629·900 1,055·3 172·000 2,280·6 426·000 751·9 258·400 49·6 39·200 225·4 101·000 29·8 34·700 6·7 25·600

1966-67 4,242·0 604·600 1,102·5 180·000 3,438·4 796·000 703·1 275·800 53·7 39·200 152·7 101·000 18·8 36·300 8· I 25·200 1967-68 3,779·0 629·300 1,233·2 183·000 4,686·6 1.018·000 575 ·I 239 ·000 46·8 39·300 56·9 90·000 34·9 31·400 7·6 21·400 1968-69 3,896·0 626·700 1,175·0 183·000 5,838·1 1.242·000 324· 8 250·800 17·7 • 39·000 55·6 90·000 8·9 38·500 2·9 25·000

• Including Briquette Factory. t Including Bendigo, acquired 1/7/34, closed down 31/12137.

58 STATE OF VICTORIA GENERATION OF ELECTRICITY

State Electricity Commission of Victoria Interconnected System Other Other Stations~ Under- Total Mildura, Red Cliffs, takings. Shepparton, Hamilton, Total Warrnambool, Eildon-Rubicon, Kiewa Generated by Other Total Horsham and Hamilton, Horsham. Cairn Curran Bodies <1> Interconnected Murtoa Mildura and System Red Cliffs

M.D. M.D. M.D.MW I M.D. MW M.D. M.D. MW GWh GWh GWh GWh :::~ GWh coinci- GWh GWh GWh GWh Year sum- MW dent I sum" mated MW I mated mated ------~ .. -~ ·---~----·· ~~ .. ·- 1-i ---~ Operation Eildon·Rubicon Operation Hanlilton commenced operation commenced acquired Shepparton commenced 1.9.44 !.7.46 7.3.51 14.3.28 Mildura Warrnambool Cairn Curran acquired 7.4.52 operation 1.10.53 Hamilton and commenced ...... 189·6 50·000 Red Cliffs 189·6 333·8 523·4 1925-26 Horsham 11.11.60 commenced connected to operation State System ...... 285·7 76·000 16.1.54 285·7 302·1 587 ·8 1926-27 from 3.2.55 4·8 ,,·:5oo .. 380·2 87.500 Hors ham 380·2 252·3 632·5 1927-28 and 1.3.58 65 ·3 16·310 ...... 423·5 95·500 acquired 423·5 248·5 672·0 1928-29 respectively 77·9 19·300 .. .. ., 463·3 103· 160 1.6.55 463·3 245·0 708·3 1929-30 Hors.ham ceased 120·9 23·100 464·3 109·013 Murtoa 464·3 211' 1 675·4 1930-31 operation acquired 31.10.58 and 1.3.56 Hamilton 122·4 23·400 518·5 116·959 Ceased 518·5 194·7 713·2 1931-32 3.9.59 Ill ·I 23·400 .. 564·3 123·404 operation 564·3 197·9 762·2 1932-33 '.1ildura and 101·0 22·800 605·3 127·621 2.3.58 605·3 206·2 811· 5 1933-34 Red Cliffs 155·3 25·300 ...... 632·1 141·993 632· I 235· 3 867·4 1934-35 connected to 134·7 25·400 733·8 158· 862 733·8 228·9 962·7 1935-36 State System from 16.11.62 Mi1dura 141 ·4 25·490 787·9 173' 300 787·9 233·9 1.021·8 1936-37 retired 85·6 25·090 856·9 181·847 8~6·9 240·4 1,097·3 1937-38 7.2.63 103·2 14·300 .. 918·2 198·000 918·2 240·2 1.158. 4 1938 39 Shepparton 149·5 25 ·400 ...... 1.045' 2 218·600 1.045·2 227·5 1,272·7 1939-40 retired 97·8 20·800 .. 1.176. 6 261 ·820 .. 1.176·6 222·5 1,399·1 1940~1 11.5.64 Warrnambool retired 133 ·4 25·600 .. 1,351 ·I 297·696 1.351 ·I 202·3 1,553 '4 1941-42 30.9.67 156· 2 26·100 .. 1.476· 2 319·300 1.476·2 188·1 1,664·3 1942-43 130·4 25·700 1.495·8 328·000 1.495·8 193·0 1,688·8 1943-44 .. 101·1 25·500 18 ·7 24·000 .. 1.523 '7 351·600 1.523' 7 207·4 1,731 ·I 1944-45 134·3 25 ·650 51 ·4 26·000 '' 1,620·5 377·100 1,620·5 202·8 1,823·3 194546 \ .. 144·7 25' 850 61 '5 26·700 1.714·2 364·750 2·8 1·000 1.717·0 208·9 1.925·9 1946-47 161·8 25.850 68·3 26·400 1,932·5 449·500 3·6 I 140 1,936· I 252· 3 2:188·4 1947-48 139·1 25' 550 44-4 28 ·000 .. 2.175·4 436·930 4·5 1·290 2.179·9 254·6 2,434·5 1948-49 260·5 2,656·0 129·2 26 ·050 46·8 28·500 " 2,390·3 504·090 5·2 I ·382 2,395· 5 1949-50 0·8 1·663 146·0 26·050 48·2 28·000 2,629·3 497·370 5·8 1·488 2.635·1 158·2 2,793·3 1950~51

5·4 4·083 160·6 26· 150 65·8 28·000 .. 2,818·8 533·370 6·6 1·580 2,825·4 59·0 2,884·4 1951-52 12·3 12·000 168·2 25·950 66·7 28·000 3,046·2 602·310 7·0 1·800 3,053·2 64·5 3.117·7 1952-53 30·2 15·230 92·6 26·950 62·3 28·000 .. 3,506· 5 701·650 29·2 12·800 3,535·7 50·3 3:586·0 1953-54 34·6 17·240 141·5 31·250 77·8 61·000 .. 3.968·4 836·020 35·5 13·720 4.003·9 45·5 4.049·4 1954-55 32·0 17·630 171·1 31·170 288·2 90·000 4,416·0 897·190 46·4 14·670 4.462·4 43·4 4.505·8 1955-56

35 ·4 17·600 212·5 133.500 228·3 90·000 5·8 12·000 4.745·7 943· 330 50·0 16·405 4,795' 7 43· I 4,838' 8 1956-57 44·6 19·240 333·7 133' 500 175·4 90·000 93·9 25.500 5,097· I 1,067·450 54·4 17·200 5,151· 5 43·6 5,195· I 1957-58 37·5 18·790 264· I 141·500 238·0 90·000 154·7 26·500 5,537. 9 1.137· 140 48· I 16· 100 5,586·0 44·2 5,630· 2 1958-59 24·6 17·200 261·5 134·500 193·6 120·000 217·6 122·600 6,067. 5 1,312·600 51·4 13·900 6,118·9 44·6 6.163·5 1959-60 17 ·2 14·450 344·1 140·500 340·8 184·000 349·0 131· 500 6,552· 7 1.320· 300 54·3 16·650 6,607·0 43·6 6,650·6 1960-61

3·7 13·650 279·0 135·450 258·0 196·000 397·6 240· 500 6,832· I 1,391·900 57·0 16·900 6,889·1 40·4 6.929·5 1961-62 8·9 31 ·780 223·6 137,500 323·3 208·000 841·7 247·000 7,701·2 1,669·700 22·2 16·400 7,723·4 40·9 7,764·3 1962-63 7·8 8·380 247·3 140·620 296·0 212·000 1,102·7 254·100 8,666·9 1,739·000 " 8,666·9 36·8 8,703·7 1963-64 5·5 10·050 416·1 140·700 398·4 210·000 !,421·7 233' 200 9.674·7 !,963·000 9,674·7 32·0 9,706· 7 1964-65 3·2 10·150 269·0 139·850 244·0 208·000 942·0 307·500 10.281·1 2,013·000 .. " 10,281·1 31·4 10,312·5 1965-66

6·5 18·650 243·4 139·690 327·1 208·000 912·5 454·000 11,208·8 2,171 ·000 .. 11,208·8 23·2 11.232·0 1966-67 1·5 15· 150 338·4 134·250 202·6 208·000 972·4 500·000 11.935·0 2,332·000 11,935·0 20·7 11,955·7 1967-68 0·7 7·000 226·0 139·600 396·7 197·000 925·3 526·000 12,867·7 2,429·000 .. .. 12,867·7 13·9 12,881·6 1968-69

59 STATE ELECTRICITY COMMISSION OF VICTORIA

(a) LOAD FACTORS AT POWER STATIONS(/~) (Generated Basis)

Interconnected System

Yal!ourn Year Ended (including -I Spencer St. 30th June Briquette Morwell Hazel wood ~ewport Richmond (Melbourne City Gee long Factory) Council) ,- 1939 .. . . 58·3 . . . . 13·9 20·1 . . 47·0 1944 .. . . 65·9 . . . ' 13·2 32·5 17·9 41·8 1949 . . .. 76·0 '' .. 42·5 19 I 25·0 31 ·8 1954 . . .. 65·5 . . . . 49·6 44-4 33·2 24·9 1959 . . .. 77·2 62·5 . ' 48·2 31 '5 27·3 34·9 1964 '. 75·8 74·0 43·8 20-4 41·9 16·5 1965 .. 76·5 68·9 53·0 35·8 12-4 28·8 13·0 1966 .. 80·2 70·0 61 I 33·2 14·5 25·5 9·8 1967 .. 80·1 69·9 67·2 29·1 15·6 17·3 5·9 1968 .. 68·4 76·7 61·0 27·4 13·6 7·2 12 6 1969 '. 75·0 73·3 62·8 15·5 5·2 7·0 2·6

(b) FUEL USED AT POWER STATIONS (tons)

Yallourn (incl. Briquette Factory) .. Brown Coal 8,250,986 3,491,770 9,438,658 9,806,933 Briquettes 31,491 20,875 32,357 37,989 Oil .. Morwell . . Brown Coal 2,348,165 2,541,650 2,325,647 2,372,063 Briquettes Oil 954 965 946 806 Hazelwood .. Brown Coal 7,447,537 6,260,860 4,704,831 3,189,430 Briquettes 28,979 20,945 26,128 12,493 Newport .. Brown Coal '. Briquettes 226,853 380,448 471,814 527,801 Black Coal 10,703 28,857 18,414 14,700 Oil .. 1,294 1,641 2,031 2,319 Richmond . . Briquettes . . .. Oil .. 5,320 14,194 16,011 15,235 Spencer Street (Melbourne City Council) . . Briquettes 3,863 3,975 13,953 Black Coal Oil .. 17,430 16.505 44,351 61,566 Coke .. Geelong "A"! and "B" .. Brown Coal .. Briquettes 6,434 23,399 13,457 20,936 Ballarat "A" and "8" .. Brown Coal Briquettes 2,349 5,977 5,911 Oil .. 64 I .. Oil 126 710 Briquettes .. Oil ..

t"A" Station retired 1/7/66. 4> "A" Station retired 18/ 12!61. !f Station retired 30:9!67. Calorific values (Btu/lb. (gross)):-Brown Coal--3,700 (Yall.), 4,150 (Mor.), 5,150 (Yall. Nth.); Briquettes-9,500; Black Coal­ ! 0,000 (Wonthaggi), 12,000 (Maitland); Oil-18,500; Coke--11 ,000.

60 STATE ELECTRICITY COMMISSION OF VICTORIA

(a) LOAD FACTORS AT POWER STATIONS(/~) (Generated Basis)

Interconnected System

Eildon- Total Ballarat Year ended Rubicon. Kiewa Hume Snowy Inlerconne.:ted 30th June Cairn Curran System

39·5 48·5 51.8 1939 43·9 57·8 51 ·2 1944 36·7 . . 62·2 18 ·1 56·0 .. 1949 20·5 22·6 39·2 25·4 .. 55·5 26·0 1954 19·2 24·5 21·3 30·2 52·2 .. 55·4 34·1 1959 5·0 10·6 19·9 15·9 31 ·8 23 ·I 56·7 1964 6·4 6·2 33·8 21·7 60-4 41·4 56·3 1965 3·0 3·6 22·0 13·4 27·4 27·8 58·3 1966 3·7 4·0 19·9 17·9 41·4 21 ·5 58·9 1967 4·0 1·4 28·7 11·1 31·8 17·3 58·3 1968 1·3 1·1 18·5 23·0 32·0 15·8 60·5 1969

(b) FUEL USED AT POWER STATIONS (tons)

1964-65 1963-64 1962-63 196162 1960-61 1959-60 1958-59 : l 9,914,900 9,783,087 9,456,738 8,936,768 7,851,598 8,189,868 8,005,423 25,390 27,496 35,239 l 17,197 9,443 6,170 9,300 i 12 2,395,817 2,596,103 2,340,104 1,958,807 1,762,784 1.034,718 285,389 9 62 109 184 288 194 206 851 656 922 986 1,538 792 1,048 970,406 1 16,547 1 Station commenced operation 1/10;64 I 41,547 188,265 71,748 85,597 354,798 633,881 702,547 511,507 612,435 585,505 740,816 701.999 262,452 73,097 60,202 20.183 15,036 19,709 52,332 94,646 178,692 4,662 7,545 3,386 ! 1,307 6,617 58,458 114,647 ...... 167 1.139 3,437 11,218 13,356 21,612 7,079 ! 6,415 22.325 53,292 41,546 23,318 26,518 39,270 38,343 30,285 6,211 2,083 21 138 216 1,546 6,062 68.723 103,492 41,552 33,173 64,135 109,078 92,399 .. 48 . . 81 . . 1,965 5,193 .. 354 123,055 186,302 29,736 36,023 28,943 51,501 94,108 34,978 12,396 .. . . 11,915 9,377 4,018 49,922 27,106 1,420 1,130 I 15 249 312 11,860 20,133 18,404 1,206 1,784 l,Q31 542 3,071 2,763 2,355 . . .. 16.730 39,218 38,582 I ,939 794 79 43 I ,859 2,257 2,751 20,902 23,991

-·~--·-- 13,322,670 12,567,455 11,868,590 10,981,172 9,969,534 9,981,522 9,179,661 618,422 711,911 709,814 937,348 902,950 316,801 110,224 60,202 20,204 15,036 19,847 52,548 96,192 184,754 88,878 135,147 56,078 44,992 112,297 265,418 294,402 .. 48 . . 81 . . 1,965 5,193

61 STATE ELECTRICITY COMMISSION OF VICTORIA BROWN COAL AND BRIQUETTE PRODUCTION (Ions)

Yallourn and Morwell Open Cuts Yallourn North - ! Financial Year Production Distribution Production (3) Yallourn Morwell Power Stations Briquette Facts. Power Stns. & Wks. ·-- Prodn. commenced Developmental Coal August 1924 Winning commenced October 1955 1925-26 689,267 336,147 353,120 175,010 114,565 26-27 860,474 438,654 421,820 307,601 257,177 27-28 1,159,983 669,530 490,453 319,656 286,455 28-29 1,660,698 1,131,060 529,638 41,072 16,889 29-30 1,767,261 1,124,836 642,425 43,361 18,007 30-31 1,850,849 956,890 893,959 9,494 6,426

31-32 2,563,405 1,274,908 1,288,497 Closed Sept. 1930 32-33 2,567,712 1,355,886 1,211,826 33-34 2,692,874 1,438,929 1,253,945 34-35 (I) 1,737,718 912,769 824,949 {2) 252,924 252,898 35-36 2,988,430 1,584,858 1,403,572 36-37 3,099,784 1,689,523 1,410,261 37-38 3,597,048 1,993,371 1,603,677 38-39 3,643,490 2,096,169 1,547,321 39-40 3,944,515 2,315,108 I ,629,407 40-41 4,485,241 2,820,059 1,665,182 Re-opened Sept. 1941

41-42 4,702,725 3,096,351 1,606,374 32,538 3,638 42-43 4,978,415 3,344,238 1,634,177 39,610 482 43-44 4,829,481 3,215,266 1,614,215 86,724 46,221 44-45 5,249,308 3,527,060 1,722,248 47,063 505 45-46 5,448,626 3,525,235 1,923,391 49,237 282 46-47 5,617,533 3,662,805 1,954,728 133,198 3,558 47-48 5,994,707 3,763,828 2,230,879 197,629 3,340 48-49 6,235,611 4,035,435 2,200,176 471,873 102,272 49-50 6,404,059 4,075,075 2,328,984 764,131 334,400 50-51 6,056,331 3,969,509 2,086,822 690,425 377,568 51-52 6,41!0,723 4,151,742 2,328,981 1,007,213 630,488 52-53 6,390,288 4,204,197 2,186,091 1,181,652 726,201 53-54 6,718,750 4,379,280 2,339,470 1,262,094 742,154 54-55 7,371,144 4,845,476 2,525,668 1,391,031 795,318 55-56 7,937,769 14,694 5,423,923 2,528,540 1,549,946 858,926 56-57 8,209,806 55,233 5,846,196 2,418,843 1,594,510 839,949 57-58 7,714,688 607,726 5,893,318 2,429,096 1,647,553 888,354 58-59 9,710,662 333,068 7,585,682 2,458,048 1,457,134 731,478 59-60 10,911,827 1,013,756 8,540,394 3,385,189 1,323,913 643,362 60-61 11,864,704 2,515,773 8,984,938 5,395,539 840,908 358,774 61-62 12,456,478 3,298,318 10,299,287 5,455,509 486,618 83,118 62-63 12,892,693 3,873,916 11,262,394 5,504,215 477,736 100,630 63-64 13,488,000 4,080,103 11,838,889 5,729,214 597,164 188,485 64-65 13,944,456 4,597,514 12,775,929 5,766,041 459,826 37,198 65-66 13,765,815 6,872,487 14,933,546 5,704,756 428,689 306 66-67 13,080,772 8,479,607 16,077,999 5,482,380 422,596 9 67-68 11,979,824 10,122,668 16,883,211 5,219,281 418,243 22 68-69 11,889,642 10,117,377 17,645,253 4,361,766 458,737 30

(1) Yallourn Open Cut flooded I /12/34. Production recommenced 9!3/35, with full output by May, from upper levels of the open cut. (2) Yallourn North Open Cut operated from 26/12,'34 to 31i5!35, whilst Yallourn Open Cut flooded.

62 STATE ELECTRICITY COMMISSION OF VICTORIA BROWN COAL AND BRIQUETTE PRODUCTION (Tons)

Open Cuts Briquette Factories

! Financial Distribution Distribution Year Production (4) Public Gas & Fuel Corpn. Power Stns. & Wks.' Industrial Domestic Gas & Fuel Corpn.

-~------

60,445 86,576 23,415 63,161 1925-26 50,424 109,535 49,905 59,630 26-27 33,201 121,828 51,370 70,458 27-28 24,183 141,064 62,503 78,561 28-29 25,354 161,708 103,432 58,276 29-30 3,068 225,473 25,555 136,532 63,386 30-31 321,741 69,471 168,715 83,555 31-32 307,952 46,007 179,090 82,855 32-33 323,613 47,950 189,594 86,069 33-34 26 288,240 10,838 178,862 98,540 34-35 357,601 83,290 180,206 94,105 35-36 364,695 68,177 192,718 103,800 36-37 416,545 94,445 220,521 101,579 37-38 399,924 64,666 230,295 104,963 38-39 428,389 69,358 281,779 77,252 39-40 433,756 59,489 334,882 39,385 40-41 28,900 413,450 96,550 303,995 12,905 41-42 39,128 414,959 100,321 302,511 12,127 42-43 40,503 416,715 106,755 298,870 11,090 4344 46,558 431,344 127,403 292,605 11,336 44-45 48,955 493,144 213,098 268,450 11,596 45-46 129,640 490,338 308,469 169,254 12,615 46-47 194,289 545,236 381,829 149,706 13,701 47-48 369,601 558,899 400,182 143,896 14,821 48-49 429,731 588,564 445,918 127,807 14,839 49-50 312,857 511,404 382,305 112,885 16,214 50-51 376,725 568.252 424,362 123,429 20,461 51-52 455,451 544,973 371,581 142,736 30,656 52-53 519,940 587,252 385,061 156,376 45,815 53-54 595,713 630,579 421,430 159,128 50,021 54-55 691,020 634,099 335,605 193,879 104,615 55-56 734,860 19,701 617,989 197,525 213,495 149,122 57,847 56-57 710,673 48,526 626,173 153,311 215,244 131,530 126,088 57-58 671,859 53,797 642,590 127,442 234,853 154,219 126,076 58-59 623,116 57,435 974,670 339,787 246,614 253,229 135,040 59-60 421,418 60,716 1,806,619 976,015 372,873 330,786 126,945 60-61 337,949 65,551 1,819,937 912,934 418,893 338,195 149,915 61-62 305,072 72,034 1,805,347 729,890 484,470 413,706 177,281 62-63 323,448 85,231 1,882,626 702,560 511,624 479,726 188,716 63-64 350,240 72,388 I ,892,759 633,301 552,417 536,247 170,794 64-65 349,517 78,866 1,882,814 676,330 534,625 508,624 163,235 65-66 348,375 74,212 1,820,120 580,803 549,067 512,095 178,155 66-67 333,423 84,798 1,744,948 495,624 540,353 501,464 207,507 67-68 365,547 93,160 1,471,328 137,540 564,456 543,021 226,311 68-69 ; (3) Yallourn North transferred from Mines Department 1/4/24. Yallourn North Extension commenced 9/7156. (4) Yallourn Briquette Factory commenced Dec. 1924. Morwell Briquette Factory commenced !9112/59.

63 STATE ELECTRICITY COMMISSION OF VICTORIA TRANSMISSIO~ AND OISTRIBUTIO~ SYSTEMS

Increase Uurlng year ended 30,<6:69 Total at 30:6 69 Description and Voltage Route Circuit Cable Roure Circuit Cable Miles ~liles Miles .\iiles Miles Miles

·---- ~--~ I~------~-~ OVERHEAD LINES Hazelwood to Keilor ...... 500 kV . . .. 113·0 113·0 1,356·0 113·0 113·0 1,356·0 Khancoban to Dederang . . . . 330 kV ...... 141·0 141·0 846·0 Dederang to South Morang .. I .. 330 kV '' '. 140·0 840·0 140·0 280·0 1,680·0 Kiewa area ...... 220 kV ...... 12·0 12·0 35·0 Kiewa to Dederang to Shepparton 220 kV ...... 140·0 140·0 420·0 Kiewa to Eildon to South Morang .. 220 kV ...... 147·0 294·0 912·0 South Morang to Thomastown . . 220 kV ...... 4·9 9·8 59·0 Thomastown to Brunswick . . 220 kV ...... 6·2 12·0 37·0 Thomastown to Ringwood to Rowville 220 kV . . ' . '. . . 24·0 48·0 144·0 Thomastown to Templestowe to Rowville220 kV ...... ' . . . 24·0 48·0 144·0 to Thomastown Keilor . . .. 220 kV . . . ' . . ' . . . 21·0 42·0 125·0 Keilor to Brook1yn .. . ' ' . 220 kV .. . ' ...... 9·2 18·0 55·0 Keilor to West Melbourne . . .. 220 kV . ' ' . .. . ' 7·5 15·0 90·0 Keilor to Geelong . . . ' ' . 220 kV . . . . ' . '. 83·0 83·0 248·0 Rowville to Malvern . . '. ' . 220 kV ...... ' . . 9·2 18·0 55·0 Geelong to Terang ' . . . ' . 220 kV '. . . . . ' . '' 84·0 84·0 252·0 Geelong to Ballarat ...... 220 kV ...... 43·0 43·0 130·0 Ballarat to Bendigo ...... 220 kV ...... 60·0 60·0 179·0 Ballarat to Terang . . . . 220 kV . . .. 72·0 72·0 432·0 72·0 72·0 432·0 Bendigo to Kerang to Red Cliffs '. 220 kV . ' ...... 220·0 220·0 1.320·0 Bendigo to Shepparton . . '. 220 kV '...... 72·0 72·0 218·0 Brooklyn to Yarraville . . ' . 220 kV .. . ' I ·7 3·4 20·0 1·7 3·4 20·0 Yallourn to Hazelwood . . . . 220 kV ...... 9·9 20·0 59·0 Morwell to Hazelwood . . .. 220 kV . . . ' ...... 2·7 5·4 16·0 Y allourn to Rowville .. . . '. 220 kV . . . . ' . . . .. 132·0 264·0 791·0 Rowville to Richmond '. . . 220 kV ...... 16 0 33·0 196·0 Rowville to Springvale to Heatherton 220 kV ...... ' . . 9·7 19·2 86·0 Templestowe to Doncaster .. . . 220 kV ...... 3·6 7·2 22·0 Hazelwood to Rowville . . . . 220 kV ...... 70·0 140·0 421·0 Haze1wood area ...... 220 kV . . .. 2·0 2·0 12·0 2·0 2·0 12·0 West Melbourne to Fishermen's Bend 220 kV ...... 1·6 3·2 9·6 Templestowc to Kew ...... 220 kV ...... 7·7 15·0 92·0 Brooklyn to Ballarat ...... 66 kV . . 4·8 4·8 14·5 65·0 65·0 195·0 Ballarat area ...... 66 kV ...... 12·0 17·0 69·0 Brook1yn to Geelong ...... 66 kV . . .. 4·8 4·8 ~ 92·0 44·0 44·0 132·0 Geelong area ...... 66 kV ...... ' . 4·8 9·6 30·0 Kiewa area ...... 66 kV ...... 4·6 4·6 14·0 Morwell area ...... 66 kV ...... 6·0 6·0 18·0 Eildon to Rubicon "A" . . . . 66 kV ...... 8·6 8·6 26·0 Rubicon "A" to Thomastown . . 66 kV ...... 53·0 106·0 319·0 Yallourn to Morwell ...... 66 kV . . . ' . . . . 9·4 19·0 56·0 Yallourn to Warragul . . . . 66 kV ...... 18·0 36·0 108·0 Kiewa area ...... 22 kV ...... ' .. 7·8 7·8 23·0 Morwell area ...... 22 kV ...... 0·5 0·8 2·3 Ballarat area ...... 22 kV ...... 6·5 6·5 39·0 Yallourn area ...... 11 kV ...... 2·2 3·1 9·5 Morwell area ...... 11 kV ...... 2·2 3·3 9·9 Eildon area ...... 6·6 kV ...... 0·5 0·5 I· 5 Hazelwood area ...... 6·6 kV . . . . 4·7 4·7 14·2 4·7 4·7 14·2 Main Metro. Transmission Lines .. 66 kV . . . . -21·7 - 28· 5 -85·0 150·0 195·0 641·0 Main Metro. Transmission Lines . . 22 kV . . .. -4·3 -3·7 11·1 224·0 229·0 670·0 Main Metro. Transmission Lines . . 6·6 kV ...... 6·9 6·9 21·0 Electricity Supply Branches .. .. 66 kV . . . . 48·0 16·7 151·2 1,821·2 1,867·5 6,484·8 22 kV . . . . 1,426·5 . . 3,571 ·4 23,091 ·0 .. 57,571·4 12·7 kV . . 747·3 . . 747·3 15,393·4 .. 15,393·4 11 kV . . 6·5 . . 24·0 456·5 .. 1,364·6 6·6 kV . . -31·3 . . -126·3 383·6 .. 1,077·3 5·3 kV . . -- 2·6 . . -7·8 14·0 .. 42·2 Low Voltage . . 373 ·I .. 1,702·6 13,905·2 54,199·9 Latrobe Valley (Works) . . . . 22 kV ...... 0·8 0·8 2·6 6·6 kV .. 0·3 0·3 0·9 49·6 50·2 151· 7 1·1 kV (DC) -1·4 1·4 1·4 18·0 19·1 21 ·7 Low Voltage .. -1·6 1·6 -7·9 20·4 20·4 80·6

Summary- ...... 500 kV . . .. 113·0 I 113·0 i 1,356·0 113·0 113·0 1,356·0 330 kV ...... 140·0 840·0 281·0 421·0 2,526·0 220 kV . . .. 75·7 77·4 464·0 1,295·9 1,803·2 6,579·6 66 kV .. . . 35·9 2·2 -~ 11.3 2,196·6 2,378. 3 8,092·8 I 224·6 328·2 2,648·7 3,886· 5 4,715·5 18,554·4

Route Miles I Cable Miles Route Miles Cable Miles

-- --~- 22 kV .. I ,422 · 2 3,560· 3 23,330·6 58,308·3 12·7 kV .. 747·3 747·3 15,393·4 15,393·4 11 kV .. 6·5 24·0 460·9 1,384·0 6·6 kV .. 26·3 111·2 445·3 1,265 ·7 5·3 kV .. -2·6 -7·8 14·0 42·2 1·1 kV (DC) 1·4 1·4 18·0 21·7 Low Voltage ··J 371 ·5 1,694·7 13,925·6 54,280·5 I 2,517 ·2 5,905·9 53,587 ·8 130,695 ·8 STATE ELECTRICITY COMMISSION OF VICTORIA TRANSMISSION AND DISTRIBUTION SYSTEMS

Increase during year Total at 30th June, 1969 ended 30th June, 1969 De!\cription Route Miles Cable Miles Route Miles ! Cable Miles i U"'DERGROUND CABLES !

6 6 kV .. '' '' . ' '' . . . ' .. I· 93 I ·93 9·33 9·33 22 and 20 kV ...... 8·82 9·58 226·99 228· 16 11, 7·2, 6·6, 3·3 and 2·2 kV ...... 13·26 13·17 366·50 436·13 s upervisory . . . ' .. ' ...... 21·87 21·87 715·69 715·69 Low voltage ...... ' ...... 17·27 21·45 150·99 159·22 63 ·15 68·00 1,469. 50 1,548. 53 ......

Number Capacity kVA Number Capacity kV A SUBSTA TIO"'S A uto-transformation stations .. . ' ...... 2 1,694,000 T erminal substations ...... I 410,000 23 5,933,750 M ain transmission substations ...... I 158,250 96 4,274,350 E lectricity Supply Branches ...... 3.671 263,780 59,102 4,440,763 latrobe Valley (Works) ...... '' -537 135 31,208 3,671 831,493 59,358 16,374,071

ELECTRICITY SUPPLY UNDERTAKINGS STATE OF VICTORIA CONSUMERS AND SALES····- 30th JUNE, 1969

Consumers Retail Sales Estimated Supply Authority Population of Area Served Percentage of Percentage of (thousands) Number Grand Total GWh Grand Total State Electricity Commission of Victoria-

Metropolitan Branch .. '' .. '. 1,244 400,575 33·02 3,411. 279 34·87 Extra-Metropolitan Branches . . ' . 1,396 580,960 47·90 4,012·754 41·02

Total S.E.C. Retail Supply .. . ' 2,640 981,535 80 92 7,424 ·033 75·89 Other Metropolitan Undertakings (receiving bulk supply from State Electricity ! Commission of Victoria) '. .. . ' 715 231,213 19·07 2,346 ·142 23·98 Total S.E.C. Supply .. . . 3,355 1,212,748 99·99 9,770·175 99·87 Other Country Undertakings (Local) .. .. l 171 0·01 12·947 0·13

Grand Total . ' .. . ' . . 3,356 1,212,919 100·00 9,783' 122 i 100·00

65 STATE ELECTRICITY COMMTSSTO~ OF VICTORIA

ELECTRICITY CONSUMER SALES AND INCOME STATISTICS

kWh Sold per Estimated Number of Consumers Consumer (Average) I Jncome Population (excl. GWh Sales Number of Area (excl. I of Farms 1June of Supply Total Bulk All Supplies) Bulk I r, >

1958 2.044 522,120 36.074 61,476 619,925 56.274.772 2,926 790 2.333 31.105 5,334 4,839 3~.999 1959 .. 2,099 546,880 38,496 64,025 649,658 64,161,076 3.166· 302 2.474 31,055 5.648 4.987 41.748 1960 .. 2,177 571,869 40,872 66,914 679,917 70,562.706 3.437·026 2.584 32.415 5,949 5.168 44,079 1961 2,195 598.265 44.473 69,360 712,363 76,642,644 3,737·943 2,741 32,105 6,500 5.364 46.838 1962 .. 2,245 623.443 47.396 72.062 743,176 79.206.706 3,874· I07 2,699 31.279 6.644 5.323 49,506 1963 2,301 649,226 50,849 74.663 775.020 88,798.258 4.430·631 2.881 35.570 7.145 5.830 52.985 1964 2,358 673.107 54,214 76,643 804,253 98,987.436 5,200 941 3.049 43.449 7.648 6.590 56,412 1965 2,421 704.155 58.423 79.188 842,062 110,636,962 5,867 ·026 3.214 47,815 8,144 7.120 60,415 l%6 2,469 732.311 62,355 81,378 876,345 120,103.279 6,178·525 3.293 46.392 8.694 7,186 64,001 1967 2.518 760,756 66.572 83.405 9ll,038 129,207.355 6,646·402 3,433 46,763 9,297 7,441 67,608 1968 2.574 788,407 70.283 85,432 944,434 140,721,640 7,040·641 3.474 46,905 9,833 7,583 70,610 1969 2.640 820,165 73,286 87,765 981.535 155,686,760 7,424·033 3,750 44,422 I 10,797 7,714 72.505

(b) ELECTRICITY SUPPLY BRANCHES -1968 AND 1969

-···-----····· ·········~ I I kWh Sold per Estimated Number of Consumers Consumer (Average) Population Income G' Number of Area (excl. Bulk of Farms Branch of Supply Supplies) All Supplied (thousands\ Corn- (a?x~:~es s Corn- Domestic Industrial merclal Bulk Domestic Industrial mercial Supplies) <·s~~p~!~~k - ---- Metropolitan 1969 .. 1.244 359,728 9,837 30,965 400,575 73,162,563 3,411· 279 3,935 143,574 13,801 8,639 894 1968 .. 1,223 349,269 9,377 30,666 389,357 65,995,611 3,148·931 3,667 141.102 12,374 8.190 909 Barwon 1969 .. 154 41,800 1,918 4,482 48.215 12,316,842 918·507 3,078 392,937 9,955 19,257 1,886 1968 151 40,765 1.879 4,434 47,093 11,991,897 1.071·785 2,877 492.319 9,352 23.079 1,876 Eastern Metropolitan 1969 460 167,046 9,221 13.154 189,459 28,796.465 1,335· 772 4.259 50.107 12097 7,267 8,817 1968 .. 439 157,063 8,481 12.640 178,222 25,051.571 1,184·373 3.930 49.147 10,936 6.844 8,753 Gipps1and 1969 184 55.229 12,100 7,828 75,190 10,096.523 450·975 3,210 16,652 7,953 6,093 13,117 1968 .. 179 53,396 11,812 7,571 72,812 9,226.613 422· 375 3,023 16,722 7,075 5.904 12,842 Mallee 1969 38 12,276 2,192 1,956 16,434 2.048,860 82.687 2.978 13,303 9,022 5,095 3,749 1968 .. 37 12,006 2,094 1,905 16,0151 1,897 252 78·964 2,679 16,112 8,792 5,109 3,674 Midland 1969 .. 52 17,049 3,079 2,563 22,721 2,437,646 102·118 2,806 11,804 7,171 4,548 3,877• !968 51 16,828 3.093 2,574 22,525 2 222,158 94 ·6!7 2,537 11,622 6,552 4,260 3,955 Mid-Western 1969 88 26,425 2.706 32,823 3.644,187 148·723 2,627 21,021 8,778 4,932 3,358 1968 .. 84 23,883 2,593 29,820 3,290,219 136·874 2,392 20,544 8,012 4,623 3,283 l'

$ These figures do not include allowances for unread meters. • 131 farms were transferred from Midland Branch to Wimmera Branch on 1st July, 1968.

66 STATE ELECTRICITY COMMISSION OF VICTORIA ELECTRICITY SALES AND INCOME"' AGGREGATES FOR ALL BRANCHES, 1948-1969

Sa1es--GWh Income

I Per kWh Sold (cents) Year Ended 30th June Bulk Public Domestic Traction Commer- Total Total All Con- Supplies• Lighting Industrial cial ($) Domes- Indus- Com- sumers tic trial mercial (excl. Bulk Supplies) ---····------····-·------·· ---- -······---:-~ ····-~---~ 1------~

948 "" 506·780 18· 106 331·357 467·063 66·900 121" 120 1.511·326 12,939,444 I ·262 0·725 1·569 I ·013 949 "" "" 563· 296 18·607 410·607 513·763 68·181 135·003 1.709·457 16,154,718 1·286 0·813 I ·728 1·098 950 613·552 14·253 491 ·743 545·656 54·998 145·380 1,865·582 18,610,296 1·286 0·875 I ·779 I· 151 951 '" 656·488 17·982 531·083 590·953 135· 548 160·919 2,092·973 22,932,102 1·401 0·949 I ·817 I ·245 952 679·665 20·451 545·271 590·626 236·265 163 ·433 2,235·7ll 29,651,504 1·663 1' 163 2·140 1·504

953 729·369 21·228 613 '203 615.330 248·115 179·005 2,406·250 38,151,182 I ·960 I ·413 2·561 I ·774

954 "" 844·749 22·508 719·398 733·991 265·443 205·366 2.791·455 43.952,112 I ·939 1·403 2·591 1·762 955 '" '" 955·610 23·832 827" 244 840·015 280· 117 234·403 3,161 ·221 49,228,660 I ·843 1·398 2·590 1·728 956 1,058. 551 25· 824 971 "290 942" 514 297·839 268·770 3,564· 788 56,772,000 I ·846 I ·460 2·699 1·753 957 "" 1,132·597 28·193 1,088·486 992·422 304·291 297 ·177 3,843" 166 67,263,810 1·915 1·690 3·123 1 ·903

958 "" "" 1.238·337 30·423 L!89·402 1,082·613 304·448 319·904 4,165· 127 73,990,082 1 ·898 I ·713 3·218 1·923 959 "" .. I ,327·463 33·609 1,323·230 1,16! ·891 294· 162 354· 597 4,494·952 83,942,026 I ·973 J ·826 3·313 2·026 960 .. .. "" I ,444· 529 36·217 1,445·900 1.287·870 277" 276 389·763 4,881 ·555 92,710,616 1·998 I ·839 3·321 2·053 961 "" 1,544·699 38·804 1,604·675 1,374·529 275" 795 444· 140 5,282·642 100,198,848 I ·978 1·833 3·279 2·050 962 .. .. "" 1,573·765 42·225 1,648·538 1,439· 128 274·104 470· 112 5.447·872 103,24!1. 750 1·978 1 ·8ll 3·253 2·044

963 1,740·744 43·692 1,834·813 1,754·411 272·019 525·696 6,171 ·375 ! 15,398,440 I ·968 1·730 3·235 2·004

964 "" "" "" 1.818·664 45·545 2,014·204 2,282" 394 279·721 579·077 7,019·605 127,105,602 1·951 ! ·559 3·204 I ·903 965 .. 2,006·601 47·434 2,214·840 2,698" 709 270· 156 635 ·887 7,873·627 142,630,006 1·962 I ·516 3·241 I ·886 966 "" 2,176·238 48·305 2,366·693 2,802·937 262·061 698·529 8,354·763 155.633,036 2·016 1 ·566 3·254 1·944 967 "" .. 2,497·308 49·367 2.560·989 3,017·303 253·041 765·702 9.143·710 167,478,130 2·002 1 ·575 3·215 1·944

968 " 2,675·706 51·671 2,692·624 3,221 ·693 244·029 830·624 9,716·347 182,230,140 2·035 1·633 3·290 1·999 969 "" .. 3,130·349 54·933 3,014·230 3,188·620 231·338 934·912 10,554·382 201,258,347 2·091 1·744 3·317 2·097

These figures do not include allowances for unread meters. • Including sales to N.S.W.and Snowy Mountains Authority.

67 ELECTRICITY SUPPLY UNDERTAKINGS (MUNICIPAL AND PRIVATE)

~ -----~·,------;------, ---,.----,------Municipality or Centre Supply Authority System of Supply Population c~~~~~rs Tariffs ------~-----~-~------~----·-·····---·~······-----~-~-~····-1------····~~-~---~-- ·······~-~---··· ···------·------

METROPOLITAN Supplied in Bulk by State Electricity Commission City of Melbourne {D.C., 230-460v. Melbourne City Council ' l (excl. Flemington) . \A.C., 3 ph., 240-4J5v. J 75,000 29,086

Box Hill and City Box Hill City Council '' A.C., 3 ph., 240-415v ... 133,000 42,166 of Nunawading ..

Brunswick '' Brunswick City Council .. A.C., 3 ph., 240-415v ... 52,000 17,291 Coburg . ' . ' Coburg City Council .. A.C., 3 ph., 240-415v ... 71,000 20,557 Doncaster and Doncaster and Templestowe A.C., 3 ph., 240-415v ... 43,000 13,592 Templestowe City Council Standard Tariffs for the State Footscray & part of Footscray City Council .. A.C., 3 ph., 240-415v ... 83,000 25,81 I System apply in all these areas. City of Sunshine Heidelberg (excl. Heidelberg City Council . ' A.C., 3 ph., 240-415v ... 77,000 23,513 Greensborough) Northcote .. . ' Northcote City Council A.C., 3 ph., 240-415v ... 49,000 16,434 Port Melbourne .. Port Melbourne City Council .. A.C., 3 ph., 240-415v ... 12,000 3,972 Preston . . .. Preston City Council . . A.C., 3 ph., 240-415v... 90,000 27,079 Williamstown Wil\iamstown City Council .. A.C., 3 ph., 240-415v ... 30,000 9,838 COUNTRY Ben doe Monaro County Council (NSW) A.C., 3 ph., 230-415v ... 300 78 Monaro County Council Rural Tariffs.

Lighting Power Mallacoota T. A. Davies A.C., 3 ph., 230-400v ... 300 93 Dom. 20c to l8c Dom. 20c Corn. 20c to 12c

NEW SOUTH WALES UNDERTAKINGS

During the year the Murray River County Council purchased from the State Electricity Commission of Victoria 16,135,800 kilowatt-hours.

68 Statistical Summary

1968-69 1967-68 CONSUMERS SUPPLIED State Electricity Commission Retail Supply 981,535 944,434 Other Metropolitan Undertakings (receiving bulk supply from S.E.C. of Victoria) 229,339 223,611

Total S.E.C. Supply 1.210.874 1.168,045 Country Undertakings (Local) 171 5,065 -·--- TOTAL-VICTORIA I ,211,045 L\73,110

~----- f'ARMS SUPPLIED 72,760 70.942 POPULATION OF SUPPLY AREA S.E.C. Retail Supply ...... 2,640,000 2.574,000 Other Metropolitan Undertakings (receiving bulk supply from S.E.C. of Victoria) 715.000 706,000

Total S.E.C. Supply 3,355,000 3,280,000 Country Undertakings (Local) 1,000 15.000

TOTAL 3.356,000 3,295,000

POPULATION OF VICTORIA 3,389,000 3,324.200 (estimated) ELECTRICITY SALFS-RETAIL SUPPLY (GWh) S.E.C.-Domestic 3,014.230 2.692.624 Commercial 934.912 830.624 Industrial 3,188.620 3.221.693

Total S.E.C. Retail Sales 7,424,033 7.040.641 Other Metropolitan Undertakings (receiving bulk supply from S.E.C. of Victoria) 2,330.711 2.174.913

Total S.E.C. Supply 9,754.744 9,215.554 Country Undertakings (Local) 12.947 17.334 -·--· TOTAL-VICTORIA 9,767.691 9,232.888

GIGAWATT-HOURS GENERATED (INCLUDING PURCHASES) Interconnected System 12.867.7 11,935.0 Country Undertakings (Local) 13.9 20.7 TOTAL-VICTORIA 12,881.6 11,955.7 --·--- INSTALLED GENERATING CAPACITY OF POWER STATIONS at 30th June, (M\\') Interconnected System- Base Load Stations !Yallourn!, Morwell & Hazelwood) 1.962.5 1.812.5 Other Thermal Stations 440.8 485.8 Hydro Stations 928.5 822.5

-~-~-·- Total Interconnected System 3.331.8 3,120.8 Country Undertakings (Local) 0.2 9.3 --- TOTAL-VICTORIA 3,332.0 3,130.1

MAXIMUM COINCIDENT DEMAND ON S.E.C. INTERCONNECTED SYSTEM (MW) 2,387.0 2,429.0 (1969 winter compared with 1968 winter) (22/7/69) (2/7 /68)

*Including briquette factory generating plant.

69 STATE ELECTRICITY COMMISSION OF VICTORIA

STANDARD TARIFFS I<'OR THE STATE SYSTEM

TARIFFS BASIS OF CHARGE RATES

DOMESTIC

DOMESTIC Domestic "GB"* GB Rates a kWh (based on quarterly consumption) First 75 at 6.0 cents Next 435 at 2.3 Balance at 2.1 • For domestic consumers previously having room assessments of three rooms or less .under the former two-part Residential Tariff .. G .. the change to the Domestic "GB" block tariff will be graduated over the three-year period from 1st November. 1967, to 1st November. 1970.

Water Heating-lSight Rate "I" I Rate a kWh 1.05 cents ------··········---- Storage Space Heating, or Combined Storage Space Heating and Storage Water Heating (based on quarterly consumption) First 1200 at 1.05 cents Balance at 0.85

COMMERCIAL AND GENERAL

COMMERCIAL-RESIDENTIAL

Commercial-Residential "G" G Servtce . Charge (month Iy b aS IS) ...... Rate a room I 9 0 cents Energy ...... Rate a kWh 2.21 " Maximum overall rate ...... Rate a kWh 6.0 I " Water Heating-Night Rate "I" I Rate a kWh 1.05 " ' Storage Space Heating, or Combined Storage Space Heating and I IS Storage Water Heating-available only under Commercial- .. Rate a kWh 1.05 cents Residential Classification

COMMERCIAL AND GENERAL Commercial Lighting "A" Block Tariff--rates a kWh (based on monthly consumption) .. First 100 at 8.0 cents Balance at 7.4 "

Commercial Power and Heating "C" Option I Option I Block Tariffs-rates a kWh (based on monthly consumption) .. First 200 at I 4.85 cents Next 4,800 at 2.80 20,000 at 2.30 " Balance" at 2.05 " Option 11 Option ll " 11 p.m. to 7 a.m...... Rate a kWh 1.0 " 7 a.m. to 11 p.m...... Block rates as in Option I Rental a month for each set of two-rate metering equipment .. $1.00 Commercial General Service "E" E Option I Option I Block Tariff-rates a kWh (based on monthly consumption) .. First 100 at 8.0 cents Next 900 at 7.4 " 1.000 at 4.85 , " 3:ooo at 4.25 " 20,000 at 2.30 " Balance at 2.05 " Option 11 Option II " Power and Heating only-·-11 p.m. to 7 a.m...... Rate a kWh 1.0 ,. All other consumption ...... Block rates as in Option I Rental a month for each set of two-rate metering equipment .. $1.00 Commercial (Non-residential) Low Voltage All-Purposes Maximum V Demand "V" Option I Option I Demand Charge a month-(indicators are reset monthly) .. Rate a kW $3.50 Energy Charge ...... Rate a kWh 0.80 cents Minimum Demand Charge--200kW or half the stipulated rate of supply, whichever is greater ......

70 STANDARD TARIFFS FOR THE STATE SYSTEM-continued

TARIFFS SYMBOL BASIS OF CHARGE RATES

Option 11 V Option 11 Part A. 7 a.m. to 7 p.m. Monday, Tuesday, Wednesday, Thursday, Friday: Demand Charge a month-(indicators are reset monthly) .. Rate a kW $3.50 Energy Charge ...... Rate a kWh 0. 80 cents Minimum Demand Charge-200kW or half the stipulated rate of supply, whichever is greater Part B. All of Saturday and Sunday and from 7 p.m. to 7 a. m. on other days Demand Charge a month for all kW in excess of maximum demand recorded from 7 a.m. to 7 p.m. Monday to Friday inclusive .. Rate a kW 95.00 cents Energy Charge ...... Rate a kWh 0.80 :'vtinimum Demand Charge--JOOkW or half the stipulated maxi- " mum excess rate of supply, whichever is greater

Commercial Range "F" F Cooking ...... Rate a kWh 2.21 cents Water Heating-Night Rate "I" 1 Rate a kWh 1.05 cents (not available with Commercial All-Purposes Tariff "V")

COMMUNITY SERVICE Community Service-Residential "R" R Service Charge (monthly basis) ...... Rate a room 16.0 cents Energy . . . . , . . Rate a kWh 2.0 ...... " Maximum overall rate , ...... Rate a kWh 6.0 .. Storage Space Heating, or Combined Storage Space Heating and YS Storage Water Heating--available only under Community Service Residential Classification ...... Rate a kWh 0.95 cents Community Service-General "N" N Option I Option I Block Tariff-rates a kWh (based on monthly consumption) .. First 10 at 6.0 cents

Next 190 at 4.3 H 4,800 at 2.5 .. Balance at 2.2 Option 11 Option li 11 p.m. to 7 a.m...... Rate a kWh 0.9 " 7 a.m. to 11 p.m...... Block rates as in Option I Rental a month for each set of two-rate metering equipment .. $1.00 Community Service Range "W" w Cooking ...... , , . . , . .. . ' . . Rate a kWh 2.0 cents

Community Service Water Heating-Night Rate "Y" , . .. y Rate a kWh 0. 95 cents

INDUSTRIAL

INDUSTRIAL-GENERAL Industrial Lighting "A" A Block Tariff-rates a kWh (based on monthly consumption) .. First 100 at 8.0 cents Balance 7.4 at " Industrial Power and Heating "C" c Option I Option I Block Tariff-rates a kWh (based on monthly consumption) .. First 200 at 4. 85 cents Next 4,800 at 2.80 " .. 20,000 at 2.30 H Balance at 2.05 Option 11 Option 11 " 11 p.m. to 7 a.m. '...... , . . . , . . Rate a kWh 1.0 7 a.m. to 11 p.m. .. . , . , ...... Block rates as in Option I .. i Rental a month for each set of two-rate metering equipment . , $l.OO Industrial All-Purposes "D" D Option l Option I Block Tariff-rates a kWh (based on monthly consumption) .. First lOO at 8.0 cents Next 400 at 7.4 .. 4,500 at 4.6 " 20,000 at 2.3 ".. " 100,000 at 2.05 Balance" at 1.9 .."

71 STANDARD TARIFFS FOR THE STATE SYSTEM-continued

TARIFFS SYMBOL BASIS OF CHARGE RATES

Option 11 0 Option I( 11 p.m. to 7 a.m. Rate a kWh I. 0 cents 7 a.m. to 11 p.m. Block rates as in Option I Rental a month for each set of two-rate metering equipment $1.00 Minimum Charge a month . . . . $60.60 (High voltage supplie~~s ';;~ discount on total amount of bill).

Industrial Low Voltage All-Purposes Maximum Demand "V" V Option I Option I Demand Charge a month--(indicators are reset monthly) Rate a kW $3.50 Energy Charge .. Rate a kWh 0. 80 cents Minimum Demand Charge-~200kW or half the stipulated rate of supply, whichever is greater Option 11 Option 11 Part A. 7 a.m. to 7 p.m. Monday, Tuesday, Wednesday, Thursday, Friday: Demand Charge a month-(indicators are reset monthly) Rate a kW $3.50 Energy Charge Rate a kWh 0.80 cents Minimum Demand Charge-200kW or half the stipulated rate of supply, whichever is greater Part B. All of Saturday and Sunday and from 7 p.m. to 7 a.m. on other days Demand Charge a month for all kW in excess of maximum demand recorded from 7 a.m. to 7 p.m. Monday to Friday inclusive Rate a kW 95.00 cents Energy Charge Rate a kWh 0.80 " Minimum Demand Charge-IOOkW or half the stipulated maxi­ mum excess rate of supply, whichever is greater

Industrial All-Purposes Maximum Demand "M" M Option I (High Voltage Supply from the Distribution System) Option I Demand Charge a month-(indicators are reset monthly) Rate a kW $3.17 Energy Charge-rates a kWh (based on monthly consumption) First 3 million at 0. 775 cents J'-iext 5 million at 0.700 " Balance at 0.660 ., Minimum Demand Charge-500 kW or half the stipulated rate of supply, whichever is greater Option II (High Voltage Supply from the Distribution System) .. Option II 7 a.m. to 7 p.m. Monday, Tuesday, Wednesday, Thursday, Friday: Demand Charge a month~(indicators are reset monthly) Rate a kW $3.17 Energy Charge Rate a kWh 0. 775 cents Minimum Demand Charge-500 kW or half the stipulated rate of supply, whichever is greater A!l of Saturday and Sunday and from 7 p.m. to 7 a.m. on other days: Demand Charge a month for all kW in excess of maximum demand recorded from 7 a.m. to 7 p .. m Monday to Friday, inclusive Rate a kW 92.0 cents Energy Charge Rate a kWh 0.775 " Minimum Demand Charge-250 kW or half the stipulated excess rate of supply, whichever is greater ...... Option Ill (High Voltage Supply from the Sub-Transmission System) ...... Option Ill Demand Charge a month-(indicators are reset monthly) .. Rate a kW $3.17 Energy Charge-rates a k Wh (based on monthly consumption). First 3 million at 0. 775 cents Next 5 million at 0.700 Balance at 0.660 " Discount on total amount of each bill ...... J 5o/,; " Minimum Demand Charge of 20,000 kW or half the stipulated rate of supply whichever is greater Water Heating-Night Rate "I" I Rate a kWh 1.05 cents (not available with Industrial All-Purposes Tariffs "D", "M'' and "V") INDUSTRIAL-FARMS Farming General Service "B" B Option I Option J Block Tariff .. ~rates a kWh (based on monthly consumption) .. First 10 at 8.0 cents Next 190 at 4.85 4,800 at 2.80 " Balance at 2.30 " Option Il Option II " 11 p.m. to 7 a.m...... Rate a kWh 1.0 7 a.m. to 11 p.m...... Block rates as in Option I Rental a month for each set of two-rate metering equipment .. $1.00

Water Heating-Night Rate "I" I Rate a kWh 1.05 cents

MINIMUM CHARGES For each account rendered-40 cents a month-except for Commercial All-Purposes Tariff "V" and Industrial All-Purposes Tariffs "D", "M" and "V" where amounts are stated, ------""~·.·..·· -.· STATE ELECTRICITY COMMISSION OF VICTORIA · J._ . y, ELECTRICITY SUPPLY CEWE R.ITIOIC , TRUSM tSSIO ll , SUS UUSM!SSIOit, lllliH VOLTAGE OIS TR!8Ul!OIC 3011'1. Jlllt[,l969 MALLEE BRANCH REFERENCE GUER.lTING SUTIOfiS (THERMAL) GEOER!TIIIG STITIOIIS IH!O RO) 0 l[RMtUl SUTIOIS TR ..S MISSIOI UlfU SOOk¥ TRUSMIUJOIC UNES331 t't TRAISMJS$1011 liliES 220 k'( ELECTRICITY SUPPLY ' 111llfSMISSIOII DEPARTMEN TS TRIIIISMISSIDJ l SUI TUNSMISSJOII UIIIES 66 k't EUCTRICITY SUPPLY 0£PAIITM£1CT OISTIIIIUTIOIC LiliES 22 kV l INkY TransmiSSIOn and Oistnbution l1nes under construction are represented by broken lines EUCTRICIT'f SUPPLY DEP.IRTME" {BRAJfCH OFFICESI <( ELECTfiiCIH SUPPLY t)[P.IIITM EU in!STRICTDHICES) HECTRIC SUPPlY UICOERTAKIIIGS (MUNCIPAL 4. PRIVATE) C(NER.ITIIIG OWII SUPPLY Q U ft\111) , ., 1 ~1 · I• 1/( ELECTRIC SUPPLY UICDERTA.:tiiGS (MUIUCIP.Il &. PRIVATE) SUPPLIED lP! BULK 8T S.E..C.

:X: 1- ::J 0