1976
VICTORIA
STATE ELECTRICITY COMMISSION OF VICTORIA
FIFTY-SEVENTH ANNUAL REPORT
FOR THE
FINANCIAL YEAR ENDED 30TH JUNE, 1976
TOGETHER WITH
APPENDICES
PRESENTED TO PARLIAMENT PURSUANT TO SECTION 82 (b) OF STATE ELECTRICITY COMMISSION ACT No. 6377.
By Authon/y:
C. H. RlXON, GOVERNMENT PRINTER, ~lELBOURNE.
No. 44.-1l818f76.-PRICE $1·20
,~ ~~~~ SEC STATE ELECTRICITY COMMISSION OF VICTORIA
FIFTY SEVENTH REPORT 1975-1976
CONTENTS Page Page The State Electricity Commission of Victoria 5 Brown Coal Development 18 Statement of Commission Objectives 5 Brown Coal Production 18 Summary of Activities 6 Morwell Open Cut 18 Annual Report 7 Yallourn Open Cut 18 Business Result~ 9 Lay Yang Open Cut 18 Major Capital Works 14 Review of Major Activities 19 Newport Power Station 14 Marketing and Distribution 19 Development Program 15 Yallourn Township 22 Yallourn W Power Station 15 New Legislation 22 - Lay Yang Project 15 Scientific Research 22 Dartmouth Hydro-electric Project 15 Publi c Safety and Other Regulatory Responsibilities 22 Transmission & Distribution System 16 Commissioners 23 Electricity Production 17 Personnel and Organisa tion 23 North
The Loy Yang project will be the Commission·s largest development yet undertaken. Legislation to authorise the project is now before Parliament. In its Progress Report . the Parliamentary Public Works Committee which conducted a public enquiry has recommended that the Government authorise the Commission to proceed with plann ing. The project will involve the development of an open cut on the Loy Yang Brown Coal field and the construction of a 4000 MW power generating station adjacent to and south of the open cut. together with ancillary works. The first unit is planned for service in 1983 and the project will be completed by 1992.
LATROBE VALLEY MAIN COALFIELDS AREA PLAN LEGEND - Boundary of main coal reserves D Areas of marginal coal reserves investigated • Coalfields • Existing open cuts
Planned open-cut extensions
• Existing power stations D Cities and townships
BRIQUETTE Churchill FACTORY ~ W. YD. P S ~ ---::~/.00 ~ .,:>, ~"0 /j ~ ':::-TJ.- 1j L.V.W.&S.B. ~.:o.' lj RESERVOIR ~ SW.YD. ~ HAZEL WOOD P.S.
HAZELWOOD COOLING POND
YALLOURN STORAGE DAM
Newborough 2 3 4 5
2 LOY YANG PROJECT --ARTIST'S IMPRESSION
2 000 MW POWER STATIONS
SETTLING POND HIGH LEVEL WATER STORAG
3 4 The State Electricity Commission of Victoria
Chairman and General Manager STATEMENT OF COMMISSION OBJECTIVES J C TRETHOWAN For an organisation o continue to progress it must be constantly looking BCom, FASA, MIAA to the future and adapt1ng policies and approaches to meet changmg Circumstances. As part of this process. the Commiss1on in 1972 issued broa objectives and subsequent statements have quantified these Commissioners obtectives. Because of rap1dly changmg circumstances, both the corporate T PSCOTT ObJeCtives and quantified targets have been updated. FAll BROAD OBJECTIVES B J CALLINAN General: Develop as an e1ficient, progressive and innova tive organisaflon, servmg the overall interest of the Victonan community in satisfying its CBE, DSO, MC, BCE, FIEAust, FICE , FR API requirements for electric,ty, br wn coal and brown coal products. Public Responsibility: Co-operate w1th all relevant authorities and act at SIR ROGER DARVALL all times in the public interest. Environment: Ensure tha t environmental factors are identified at the CBE, FASA planning, design, construction and operational phases of every project and hat adequate environmental protect1on measures are Implemented Assistant General Manager (Administration) at each stage. P F MOIR Supply: Improve eff1c1ency and economy 1n the production, transmission and distnbulion functions, cons1stent with required standards of safety, FASA, FCIS reliability and qual1ty of supply to customers. Personnel: Provide satisfying and challenging work and encourage Assistant General Manager (Development) personnel to atta1n a high levnl of teamwork. motivation and performance. JJOHNSON Industrial Relations: roster harmonious relations with personnel, un1ons and s art associations. BSc(Lon), ACGI , FI EAu st, MIEE(UK), MIEEE(USA) Public Relations: ldent1fy the needs and wishes of the public; encourage goodwill by providing considera e and eff,cient service; keep the public Assistant General Manager (Marketing and Distribution) adequately informed of obtectives plans and activities. R G CHAPMAN Planning Develop plans fo r the wise utif,sation of the energy resources available to the State for the supply of electricity and brown coal products. BCE, FIEAust, MICE Marketing: Pursue policies wh1ch encourage the economic and effective use of electricity and brown coal produc sIn satisfying the energy needs Assistant General Manager (Operations) of customers. W DE CAMPO Finance: Make es US(; of f1nancial resources and ensure that adequa e DipEE, FI EAust funds ilre ava fable for both current and capital needs. QUANTIFIED TARGETS TO 1981 Assistant General Manager (Personnel) Targets for attainment m the live year period ending June 1981 have been PM DUNCAN set in seven key
FINANCIAL: 1975/76 1974/75 Percentage $Million $Million Increase Decrease
Total Income 398.2 348.2 +14.4
Balance of Income 0.2 0.5 - 61.0
Fixed Assets-At 30 June Cost 1 876.5 1 740.6 + 7.8 Less Depreciation 609.9 554.4 +10.0
1 266.6 1 186.2 + 6.8
PRODUCTION AND SALES:
Maximum Coincident Demand MW 3 389 3 194 + 6.1 (1976 winter compared with 1975 winter) (14/7/76) (11 /8/75) Electricity Generated (including purchases) GWh 18 900 17 676 + 6.9 Electricity Sales (Victoria) GWh 14 907 14 230 + 4.8
Number of Customers at 30 June (excluding those in bu lk supply areas) 000 1 187 1 160 + 2.4 Average use of Electricity by each Household KWh 5 065 4 972 + 1.9 Total use of Electricity per Head of Population (Victoria) KWh 4 000 3 831 + 4.4 Brown Coal Production kt 28 082 26 320 + 6.7
Briquette Production kt 946 1 092 - 13.4
Briquette Sales kt 782 921 - 15. 1 kl - k1l010nnes
ELECTRICITY PRICE TREND IN VICTORIA Base year 1965/66 = 1oo __ S.E.C. average salary/wage Average weekly earnings per per week employed male unit (Victoria) Consumer price index ___ Average price of electricity (Melbourne) per kWh- all supplies
340 / 310
--280 ------~ --
250
~ ------
130
6 1966 '67 '68 '69 '70 '71 '72 '73 '74 '75 '76 Annual Report
The Hon. J C M BALFOUR MP 2 Some old stations are currently being reactivated to reduce energy Minister for Fuel and Power, Melbourne deficiencies at an additional cost of $12M a year. These steps will SIR be nowhere near adequate and, as recently announced 200 MW The 57th Annual Report of the Commission covering the financial of gas turbine generators are to be installed as an emergency year ended 30 June 1976, together with the balance sheet and measure at a cost of $45M. In addition, this plant is relatively revenue account is presented in conformity with the provisions of inefficient in the use of fuel and costly to operate. lt is in no sense Section 82(b) of the State Electricity Commission Act 1958 a substitute for Newport. No. 6377. The following is a summary of the main features of the 3 At best the electricity system will be running with insufficient year's activities. plant and there is an increasing probability of electricity shortages. Even in the most favourable circumstances it is difficult to see RESULTS FOR THE YEAR some restrictions on the use of electricity being avoided from The Commission is pleased to inform you that operating income 1979 until the Newport plant can be brought into service. On a has exceeded operating expenditure by $197 378 after providing number of days in the past winter the loss of even one unit would $16.2M for the statutory transfer to the Consolidated Fund of have been sufficient to have caused shortages of power. Victoria, S3.3M for accrued unpaid long service leave and retiring 4 Further gas turbines and additional expenditure will be required allowances and writing out S0.6M of expenditure on Yallourn if delays in building 1\Jewport power station continue. re-settlement previously capitalised. However, this small excess is far from adequate when viewed in relation to the continuing The Victorian Trades Hall Council maintained its bans on the escalation of costs and the heavy capital program which the construction of Newport power station throughout the year despite Commission must now undertake over the next two decades. continuing discussions by the Commission and the Government with the Council in an endeavour to have the dispute resolved. Although electricity tariffs were increased by approximately 10% In all these negotiations the serious consequences of not having in December 1975 (monthly billing) and January 1976 (quarterly the 1 000 MW station available to the State have been billing), the Commission,despite the difficulties referred to later in explained and stressed. this report, has maintained its objective of restraining tariff increases to a lower level than the general rate of inflation Even if construction were commenced immediately and proceeded (see graph page 6). without interruption, the first unit could not be brought into operation Income increased by $50 M to $398.2M, including $35M resulting before 1980, some four years later than originally planned. As a from the full year's effect of the January 1975 increase in electricity consequence, apart from the emergency gas turbine units, no new tariffs and the December 1975/ January 1976 tariff increases. plant will be brought onto the system before 1980 and the Commission is no longer in the position to guarantee electricity Electricity sales Increased by 4.8% compared with 6.5% supply until the Newport power station is built. The Commission during 1974/75. believes that the possible serious effect on industry and Salaries, wages, employees' benefits and pay roll tax increased by employment is a matter which should be of vital concern to the S27.8M (17.8% ), while the average weekly salary and wage whole community including the trade unions. increased by 11%. Overall increase in expenditure was 14.5% The Commission is firm m its belief that the decision to build a compared with 16.8% in 197 4/75. 1 000 MW power station at Newport, fired by natural gas, is a FUTURE OUTLOOK: FINANCES AND OPERATIONS correct one in the community interest on technical, economic The result in the past financial year is not sufficient to avoid and environmental grounds. financial problems arising in the forthcoming year. Had tariffs To relocate the proposed units elsewhere in the State would be been unchanged, income by normal growth would have been costly. The additional capital cost alone would be of the order of expected to increase by some $38M in 1976/77; however, $1 OOM. lt would also be time-consuming because the plant could expenditure is expected to increase by $68M which would not be in operation before 1982/83, and it would increase the have led to a deficit of $25M. time during which the reliability of electricity supply is in serious Furthermore, capital requirements, i.e. finance for the works jeopardy. In addition, operating costs would be appreciably program plus loan maturities, will increase from $174M in higher throughout the life of the units, and these two aspects alone 1975/76 to $264M in 1976/77. The Commission has been would result in substantial increases in charges for electricity. lt is granted advances and loan raising authority totalling $139M highly regrettable that the community should be called upon to bear ($87M in 1975/76), which together with some $88M available these costs as a result of bans which have no good or valid basis. from internal sources would have left $37M not provided for. A compromise was suggested in the negotiations between the This would have caused a drawdown on reserve liquidity which Government and the Trades Hall Council Executive of building one would have left only $8M in reserve at 30 June 1977. This situation set at Newport and the second set elsewhere, but this has serious could not be tolerated, especially as there was no prospect of the capital and operational cost disadvantages. The additional drain on liquid funds easing. capital cost would be $60M and the additional operating cost it therefore has been necessary to increase tariffs by 17% from would be $8.5M a year for the life of the station. Many services 4 January 1977. This increase is estimated to provide $75M in a which would be common to two units would have to be duplicated full year, and $39M in 1976/77, and will enable the Commission for the separated units, and the manning of two stations of 500 MW to meet its capital commitments and at the same time maintain would be some 60% higher than I or a single station of 1 000 MW. reasonable liquid reserves. The additional financial burdens which will have to be borne by the For the past two years the Commission has stressed in its annual community are serious at a time when capital resources will be in reports the problems, both financial and operational, impending short supply for important projects, including the Loy Yang from its inability to carry out the construction of Newport power development. Parliament, having authorised the Commission to station. The first impact will be felt by electricity customers in the construct the Newport project, is the only proper authority which forthcoming tariff increase. Almost half of the increase would could require the Commission to follow any alternative course. have been avoided had Newport proceeded to program; the MARKETING remainder is the impact of inflation on normal expenditure. While a reasonable level of competition between different forms of While every possible measure is being taken to reduce the effects energy is in the best overall interests of customers, the· Commission on the electricity customer until the station can be built, it is recognises that there needs to be some rationalisation in the appropriate that Parliament and the community should be aware interests of the State's policy of avoiding waste of energy resources. of these effects, which may be summarised as follows: The Commission has discontinued promotional advertising to the 1 As a result of inflation and the cost of deferring contracts the capital general public until appropriate guidelines have been established cost of the station has increased from $145M to $250M since 1971. for a balanced energy policy. The Commission will continue to advise its customers on the most the Australian Council of Trade Unions on 12 July 1976, on the efficient use of appliances and to direct its marketing efforts Medibank issue.) towards the promotion of off-peak and high load factor applications All these stoppages resulted in restrictions in the use of electricity of electricity. In this way, there will be long-term benefits for all being imposed on customers. customers through a more economic and effective use of high capital cost electricity supply assets and an increase in the energy Bans on overtime and availability were imposed by unions from supplied by electricity produced from brown coal. The load factor on 1 June 1976, in support of a claim for a 35-hour week, and the the Commission's interconnected system now exceeds 64% and Victorian Trades Hall Council called a 48-hour strike from midnight over 99% of electricity generated in thermal power stations is on 25 August 1976. These bans and limitations were lifted on produced from brown coal fuels. 30 August 1976. The proceedings before the Australian Conciliation and Arbitration Commission remain adjourned. The Victorian Trades UNDERGROUND DISTRIBUTION Hall Council has referred the matter to the Australian Council of The number of building allotments, principally in new housing Trade Unions for consiaeration of any further action. This estates, serviced by underground reticulation increased by a Commission has stressed throughout that the Arbitration further 5 900 during the year, an increase of 84% over 1974/75. The Commission is the proper body to decide such an important continuing very strong demand for this facility demonstrates that the national industrial and economic issue. community is prepared to accept the higher costs involved to achieve a more pleasing environment. YALLOURN TOWNSHIP Mr R Burkitt, a former Commissioner of the Housing Commission, GROWTH OF THE SUPPLY SYSTEM was appointed in July 1975 as an independent arbitrator to The Commission now supplies 1 187 233 customers. Only a few determine the extent to which community facilities in Yallourn very isolated properties throughout the State are not connected to sporting venues, library, swimming pool, public halls and welfare the supply system. centres-should be re-established and the most appropriate sites The Commission continues to supply in bulk to 11 metropolitan for relocation. Mr Burkitt handed down his report in August 1976. municipal electricity supply undertakings. An offer has been These replacement facilities will cost S2.9M which will be placed in made to the relevant Councils for an extension of the financial trust accounts from which payments will be made to the Councils arrangements in respect of supply from the Commission. and organisations concerned as and when they incur or commit expenditure on these projects. MAJOR CAPITAL WORKS Negotiations in respect of compensation for churches and clubs in The second 350 MW unit of Stage 1, Yallourn W power station came the area for loss of facilities were conducted independently of into commercial service in July 1975. The Environment Protection Mr Burkitt's investigations and these negotiations now have largely Authority has issued licences for Stages 1 and 2, Yallourn W power been completed. station, subject to the provision of additional instrumentation for On 11 September 1975, the Trades Hall Council endorsed a decision comprehensive sampling and recording of all from of a meeting of the Gippsland Trades and Labour Council to lift the station. bans on the removal of houses from Yallourn. Design work for Stage 2 of the Yallourn W power comprising two 375 MW units, has been completed and orders for main plant HEAD OFFICE BUILDING have been placed. The third and fourth units are expected to first A car park annexe to the Head Office building providing parking come onto full load for the winters of 1980 and 1981 respectively, facilities for up to 350 cars has been completed. although achievement of these dates is being threatened because of delays caused by continuing industrial unrest involving men The continuing obstruction to the completion of planned and employed on construction contracts. authorised projects to provide the Victorian community with an As reported last year, the next base load power development essential service to which it is entitled has been a most frustrating proposed is a 4 000 MW station to be erected at Loy Yang, near experience for many Commission personnel. These delays in Traralgon, to meet Victoria's base load electricity requirements carrying out planned works are not only costly, but they are during the 1980s and early 1990s. The first 2 000 MW power station placing in jeopardy the hitherto reliable service which the is planned for service progressively between 1983 and 1988, and Commission has been able to provide to its customers. the second 2 000 MW station between 1989 and 1992. Commissioners are pleased to place on record their recognition of The Parliamentary Public Works Committee, after a full public the spendid response of its management and the many personnel inquiry, has recommended that the Government authorise the throughout the organisation to these challenges. Commission to proceed with the construction of the project and legislation was introduced into Parliament on 8 September 1976 giving effect to this recommendation. J C TRETHOWAN Tenders have been called for the construction of the Dartmouth Chairman hydro-electric power station, of 150 MW capacity, to be built in T P SCOTT conjunction with the Dartmouth Dam in north-eastern Victoria. Commissioner The station is scheduled to be completed in 1980/81. B J CALLINAN Work is well advanced on the diversion of approximately 4 km of the Commissioner Morwell River to permit the Morwell Open Cut to extend westerly into the Morwell River flood plain. Earthworks are expected to be C R DARVALL completed as scheduled by early 1977. The channel will then be Commissioner grassed and water is expected to be diverted by early 1978. EMPLOYEE RELATIONS FP CHIPPERFIELD The Commission continues to be concerned that substantial time is Secretary 12/10/76 being lost through industrial disputes although there was a reduction by more than half to 150 000 manhours (387 000 in 1974/75). Almost all the time lost was the outcome of industrial disputes quite unrelated to the Commission's operations. Of the time 141 600 manhours was due to a 24-hour stoppage on 18 July 1 when all State Government and Instrumentality "blue-collar" employees stopped work in support of a claim by the Geelong Harbour Trust Employees for the continuation of over-award payments, a four-hour stoppage on 16 June 1976, and a 24-hour stoppage on 30 June 1976, called by the Victorian Trades Hall Council in opposition to the Federal Government's proposals for Medibank. (A further nation-wide 24-hour stoppage was called by
8 Business Results
The balance of income was $197 378 compared with $504 416 OPERATING EXPENDITURE 1975/76 1974 /75 VARIATION last year, after providing for the Statutory transfer of $16.2M to $M $M $M % the Consolidated Fund of Victoria, $3.3M for accrued unpaid long service leave and retiring allowances and writing out $0.6M of Salaries, wages, employees' expenditure on Yallourn resettlement previously capitalised. To benefits and payroll tax 183.7 155.9 +27.8 17.8 achieve this surplus it was again necessary to increase tariffs in Interest December 1975/ January 1976 by an average of 10% to meet (incl loan flotation expense) 80.1 68.9 + 11 2 16.2 rapidly increasing costs. However, the tariff increase is Depreciation 59.9 55.2 + 4.7 8.6 favourable when compared with a consumer price index rise of 12.9% and an increase of 17.8% in salaries, wages, employees' Purchased electricity, materials, benefits and payroll tax in the same period. services and miscellaneous expenditure 54.8 44.5 + 10.3 23.2 Operating income from all sources increased by $50M to $398.2M. Electricity income increased by $50.1 M, income from Provision for accruing brown coal sales by $0.2M and briquette revenue decreased by long service leave $0.3M. and retiring allowances 3.3 9.0 - 5.7 63.3 Including the effect of the increase made in January 1975, Provision for statutory increases in electricity tariffs produced additional income of transfers to Consolidated $35M and the balance of the increase ($15.1 M) came from a 4.8% Fund of Victoria 16.2 14.2 + 2.0 14. 1 growth in electricity sales (6.5% in 1974/75). The lower growth 398.0 347.7 + 50.3 14.5 in electricity sales reflects the continuation of adverse economic conditions, although milder weather conditions no doubt had an adverse influence on sales to domestic customers. Growth in ELECTRICITY SALES 1951-1976 GWh sales to industrial customers improved from 0.3% in 1974/75 to 4.3% but is still below norm al expectations. Expenditure increased by $50.3M (14.5% ) to $398M inc luding $80.1 M interest and loan flotation expense, $59.9M depreciation and a $16.2M transfer to the Consolidated Fund of Victoria. The $3.3M provided for accrued unpaid long service leave and retiring allowances increaseq the total provision to $34.1M against an accrued liability of $48.6M at 30 June 1976. Salaries, wages, employees' benefits and payroll tax increased by $27.8M (17.8%) to $183.7M. The average weekly salary and wage per employee increased by $19.65 (11 % ) to $198.09 as a result of the continuing escalation of rates of pay; also there were substantial increases in employee service benefits. The number of employees increased by 0.5% over the year; this followed reductions in each of the eight preceding years and mainly results from re manning older stations to offset the effects of delays in building Newport power station. 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 Payments in the form of statutory transfers to the Consolidated Fund of Victoria, payroll and other taxes, rates, levies, licences INCOME and payments in lieu of rates to municipalities now amount to DOMESTIC more than $26M per annum. ELECTRICITY The rate of return (interest and balance of income before special provisions) on net fixed assets remained at 6.6%. This has risen INDUSTRIAL from 6.2% in 1973/74 to 6.6% in 1974/75. Finance available from ELECTRICITY internal sources ($45.6M) for capital works expenditure was 33% BULK SUPPLIES compared with 39% and 43% in the previous two years. The ELECTRICITY lower proportion this year is attributable to the 29% ($31.4M) increase in the capital works expenditure . COMMERCIAL ELECTRICITY ELECTRICITY SALES TRACTION & PUBLIC LIGHTING 1975 /76 1974/75 CUSTOMER CLASS ANNUAL GRO'NTH ELECTRICITY GWh GWh 1975/76 1974/75 % % SUBSIDIARY BRIQUETTE 5 039 4 815 Domesti c 4.7 13.4 & BROWN COAL 1 684 1 561 Commercial 7.9 10.1 OPERATING INCOME & EXPENDITURE 1975-76$398.2 MILLION 4 485 4 302 Industrial 4.3 0.3 EXPENDITURE 270 252 Traction 7.0 4.6 87 81 Public Lighting 7.1 49 3 342 3 219 Bulk 3.8 4.3 14 907 14 230 Total Sales 4.8 6.5
DEPRECIATION BRIQUETTE SALES 1975/76 1974/75 DEC REASE KILOTONNES KILOTONNES KILOTONNES% MATERIALS, SERVICES Domestic users 196 293 97 33. 1 & SUNDAY EXPENSES Industrial & Commercial users 586 628 42 6.6 ELECTRICITY & TOTAL (excl consumption FUEL PURCHASES in power stations) 782 921 139 15.1
The loss on sa les was $4.6M despite the price increase of 9% from TRANSFERS TO STATE REVENUE 11 August 1975. 9 Capital Requirements & Means of Finance
Expenditure on capital works during the year was $138.9M Loan transactions for each of the last five years were- compared with $107.5M in 1974/75. The marked increase of $31.4M in capital expenditure follows the FIVE-YEAR LOAN RAISINGS 1974/75 increase of $20.7M. These increases reflect the TOTAL commencement of a period of higher cap1tal expenditure on CASH CONVERSIONS RAISIN GS REDEMPTIONS important new projects and the consequences of inflation. $M $M $M $M At 30 June 1976 the cost of the Commission's fixed assets, after 1971/72 52.1 31.4 83.5 14.1 deduction of $609.9M accumulated depreciation provision, was $1 266.6M compared with $1 186.2M at the beginning of the year. 1972/73 55.7 23.5 79.2 15.7 1973/74 55.9 17.8 73.7 14.6 CAPITAL EXPENDITURE 1974/75 72.5 12.7 85.2 32.5 1975/76 65.1 11.4 76.5 23.7 1975/76 1974/75 $M $M Power stations 52.1 39.6 Finance available for capital works and maturing loan redemptions Transmission 13.7 6.9 was $11.4M less than expenditure. This shortfall was met by a draw-down of reserve liquidity. Distribution 49.7 41.7 In the previous three years, finance available exceeded Coal production 9.0 5.7 expenditure by $3.4M in 1974/75, $20.6M in 1973/74 and $4M Other works and equipment 14.4 13.6 in 1972/73 138.9 107.5 CAPITAL REQUIREMENTS
NEW CAPITAL EXPENDITURE 1966-1976 $Molllons 1975/76 1974/75 1973/74 $M $M $M Thermal Power • Hydro-Electric Coal Stations Developments Production Capital works expenditure 138.9 107.5 86.8 Briquette Transmission & General Equipment, Loan redemptions 23.7 32.5 14.6 • Production • Distribution Systems Workshops, Stores 162.6 140.0 101.4 150 FINANCE
1975/76 1974/75 1973/74 $M $M $M SEC loan raisings 65.1 72.5 55.9 State Government loans 10.5 16.0 13.5 Customers' "self-help" and other advances and contributions 30.0 12.8 15.0 Internal funds 45.6 42.1 37.6 151.2 143.4 122.0
1966 '67 '68 '69 '70 '71 '72 '73 '74 '75 '76
The level of capital expenditure for many years has been lower than normal, largely because the Commission has been able to share in the output from the Snowy Mountains Hydro-electric Scheme. which was funded by the Commonwealth Government. Its entitlement progressively increased to 1 059 MW by 1974. Also, it has received substantial benefit by the progressive upgrading of established high capital cost transmission and main distribution assets. These capital savings will not be available in future to the same extent with the result that there will be a dramatic increase in funds needed to finance important new projects as well as maintaining normal system growth. Estimated capital expenditure will be in the vicinity of $200M for 1976/77 and will rise to around $300M in subsequent years. The question of financing expenditures of this magnitude will need to receive special attention in co-operation with State Treasury. The Commission was authorised to borrow $76.5M during 1975/76 comprising $35.1 M for renewal of maturing loans and $41.4M for new works compared with $45.2M and $40M respectively in 1974/75. This amount was raised in full through private offers of $55.1 M and from public loans totalling $21.4M. Three of the four public loans were confined to conversion of maturing loans. 10 Revenue Account
For year ended 30 June 1976
$000 $000 $000 INCOME Electricity sales Domestic 132 232 116 462 Commercial and general 70 461 59 276 Industrial 95 568 84 416 Bulk supplies 73132 62 324 Traction 5478 4 555 Public lighting 5564 4 688 Increase in unread consumption 4030 4 596 386 465 336 317 Briquette sales 11 141 11 409 Brown coal sales 637 484 398 243 348 210
Operation and maintenance 173 783 145 031 Depreciation 59 916 55195 Administration, sales promotion and general service expenses 62 359 54 235 296 058 254 461 102185 93 749
FINANCE CHARGES AND SPECIAL PROVISIONS Interest (including loan flotation expense) 80125 68 948 Balance of Yallourn resettlement expenditure previously capitalised 582 Miscellaneous expenditure 1 810 1 129 Provision for accruing long service leave and retiring allowances 3 300 9 000 Provision for statutory transfer to Consolidated Fund of Victoria 16 171 14 168 101 988 93 245 BALANCE OF INCOME 197 504
1 1 Balance Sheet
As at 30 June 1976
Last Year $000 $000 $000 CURRENT ASSETS Balances at bank and cash in hand 1 841 1 741 Accounts receivable 38170 33 122 Estimated income from unread electricity consumption 32149 28 119 Materials and fuel-at cost 20 810 17 369 92970 80 351
(inc. loan redemption) at cost 68983 78 585
3976 4 533
3150 191
Assets in service-at cost 1 741123 1 612 663 Deduct: Provision for depreciation 609 861 554 346 1 131 262 1 058 317 Assets not yet in service-at cost 119114 113 529 Development of open cuts-balance of cost 16 201 14 389 1 266 577 1 186 235
1 435 656 1 349 895
HJ BURN Manager, Finance Department
Balance Sheet is provided on pages
12 Last Year $000 $000 $000 CURRENT LIABILITIES Accounts payable and miscellaneous accruals 22 374 14 617 Interest accrued 19 848 16 913 Provision for statutory transfer to Consolidated Fund of Victoria 16 171 14 167 Deposits-customers and contractors 2647 2 396 61 040 48093
DEFERRED Advances for capital works 128 244 107 936 Acquisition loans from municipalities 1 198 1 460 Provision for long service leave and retiring allowances 34 050 30 750 163 492 140 146
RESERVES General reserve 19140 18 257 Contributions for capital works 26089 19188 45229 37 445
CAPITAL Inscribed stock and debentures 866 004 831 211 Victorian Government advances 299 891 293 000 1 165 895 1124211 1 435 656 1 349 895
J C TRETHOWAN Chairman
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AUDITOR-GENERAL'S CERTIFICATE This is the certificate given by the Auditor-General on the official accounts of the Commission for 1975-76. "The accounts of the State Electricity Commission of Victoria have been audited for the year ended 3oth June, 1976. 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, 1976 and the Revenue Account properly summarises the operations of the Commission for the year. AUDITOR-GENERAL 10/9/1976." The audited Revenue Account and Balance Sheet rounded off to the nearest thousand dollars and compared with 1974-75 are set out above. 13 Major Capital Works
Newport Power Station
Despite prolonged negotiations between the Government, the power station available to the State's generating system cannot be Commission and the Victorian Trades Hall Council, work bans on stressed strongly enough, both in terms of serious shortages of the construction of the power station remained in force throughout power from 1979 onwards and heavy additional costs which would the year. be incurred in moving the station in whole or in part elsewhere in As reported last year, the Premier met with the Victorian Trades Hall the State, upmanning older stations and installing gas turbine plant Council negotiating committee on 14 August, 1975, when the as an expedient in an endeavour to ameliorate electricity Committee advised that the Trades Hall Council was prepared shortages and restrictions on the use of electricity by all sections of to reconsider its stand provided both parties agreed to adopt a the community. This would be extremely costly and generally less flexible attitude towards the dispute. acceptable environmentally. In fact there could be some shortages At a meeting on 24 March 1976 attended by the Premier, the at times during the next two years as the system will be operating Minister for Fuel and Power and the Chairman of the Commission, without adequate reserve capacity. the Trades Hall Council Committee announced that the executive The present cost of building the station at Newport is $250M- was prepared to recommend the lifting of the work bans to allow an increase of $1 05M-on the original cost The estimated cost of the construction of one of the two proposed 500 MW units at the building one 500 MW unit at Newport and the other 500 MW unit Newport site, subject to a number of conditions which included in the Latrobe Valley is $31 OM, and if the 1 000 MW station were provision for the station to be restricted to regulating duties, for moved to the Latrobe Valley, the estimated cost would be of the it to be closed down in the event of unsatisfactory atmospheric order of S360M. Both of these alternatives would result in an conditions, and for it to operate only after all practicable use had additional delay of some 2-3 years before the plant could be been made of brown coal base plant. Also, the Committee placed in service. considered that the second unit should be built at another location. Even if the bans were to be lifted immediately, the first unit of This proposal, although not attractive from the point of view of 500 MW at Newport could not be brought into service until 1980. dividing the station with substantial additional costs both now and The Commission's entitlement to power from the Snowy Mountains in the future, at least formed a basis on which negotiations could Scheme has reached its limit and there is no prospect of sufficient continue and a compromise be reached. The Premier, at a meeting firm energy being available from New South Wales. with the Trades Hall Council Committee on 5 April, 1976, presented In a letter to the Trades Hall Council dated 18 August 1976 the the Committee with a document of heads of agreement, the Premier re~emphasised the Government's concern at the continued implementation of which would lead to the building of one 500 MW ban on the station, and stated that having regard to all this the generator fuelled by natural gas at Newport. At a subsequent Government is viewing the matter most seriously. He stressed that meeting of the Trades Hall Council Executive, it agreed to Newport should and must be built as all the statutory approvals had recommend acceptance of the agreement to the full Trades Hall been obtained, the necessary licences had been issued and the Council. However, the recommendation was rejected by the Trades station had been cleared as safe by independent tribunals Hall Council at its meeting on 7 May 1976. He considered that the Government has a clear mandate to act in On 3 June 1976 the Minister for Fuel and Power made a statement the best interests of the people of Victoria on this vital project. to Parliament setting out the full position. At the date of this report the Government is awaiting a reply from The serious consequences of not having the 1 000 MW Newport the Trades Hall Council.
14 DEVELOPMENT PROGRAM sited at Loy Yang and utilising brown coal from the brown coal field. Plans in response to estimated load increases up to the winter of 2 That the Government takes notice that this is a progress report 1983 when the system generating capacity will reach 6 926 MW, only and that the Committee, per medium of a comprehensive final are based on completing the two 375 MW units of the second stage report, will make recommendations concerning the ancillary issues of Yallourn W power station, the two 500 MW units of Newport involved in the Inquiry." power station, the 150 MW Dartmouth hydro-electric power station On 24 December 1975 the Premier made a formal announcement and the f1rst 500 MW unit of the 4 000 MW Loy Yang project which that the report had been received and that the Government had author is scheduled to be completed in total by 1992. Also, 200 MW of ised the Commission to proceed with the planning of the project. gas turbine-type generating plant will be installed by 1979 because of the continued delays on construction of the Newport power station. The "Report on Proposed Extension to the State Generating System Investigations are proceeding into peak-load requirements after 1983. -Loy Yang Project 1976" was presented to the Minister for Fuel and Power on 26 February 1976 and was tabled in Parliament on 2June 1976. ····---..·------PLANT DEVELOPMENT PROGRAM TO 1983 Legislation to authorise the Loy Yang Project has been introduced in Parliament si nee the close of the year. The 4 000 MW fuel and generating project will be the largest and most important of the Commission's undertakings and will meet MW the growth in Victoria's base load electricity requirements during the 1980's and early 1990's. 4 526 The development will comprise two 2 000 MW power stations with 4 526 the first station (Loy Yang A) planned to come into service between 1983 and 1988 and the second 2 000 MW station 200 4 726 (Loy Yang between 1989 and 1992. Each power station will 375 comprise four 500 MW turbo-generating units, the largest yet Newport D-1 st Unit 500 installed in Victoria. Each unit will have its own pulverised brown 875 5 601 coal-fired boiler and chimney, together with a single natural draught cooling tower. The electrical output from the station will be transmitted to Melbourne at 500 kV via the Hazelwood terminal Newport D-2nd Unit 500 station. The estimated capital cost of the project is $1 635M Dartmouth 150* based on present price levels. 6 626 Plans include the progressive development of a new open cut to 6 provide 1 000 million tonnes of brown coal over the life of the st Unit 500 7 126 stations. Three very large dredgers, each of 60 000 tonnes per day capacity, will be required for the first 2 000 MW stage with an energy at Dartmouth will depend on stream flows additional dredger for the second 2 000 MW station. These dredgers and output from this station may not be fully available until will each have twice the capacity of the largest dredger at subsequent years. present in service in Morwell open cut. YALLOURN W POWER STATION Included in the project area of 4 700 hectares will be a buffer zone This station when completed will comprise the two 350 MW boiler of 2100 hectares around the open cutto screen operations and minimise turbine generator units already installed and two further units each its effect on the surrounding environment. Of the required area 3 100 of 375 MW capacity, making a total capacity of 1 450 MW. it will hectares have already been purchased or are in the course of purchase. be the State's second-largest power station (Hazel wood 1 600 MW) Each turbo-generator will be supplied by its own pulverised brown DARTMOUTH HYDRO-ELECTRIC PROJECT coal-fired boiler, burning coal from the Yallourn open cut. As reported in the last annual report, the Dartmouth hydro-electric The station will have three natural-draught cooling towers (instead power station of 150 megawatts will be constructed in association of four as originally planned) which, through inter-linking of the with the Dartmouth Dam which is being built in north eastern towers, will result in economies of operation. Victoria by the State Rivers and Water Supply Commission for the The first unit has given good service since it came on to full load in River Murray Commission. Tenders for the construction of the August 1973. The second 350 MW unit was accepted for station have been called, and orders will be placed for the civil commercial operation in July 1975 and has operated reliably. works before the end of this year. The power station is expected to be completed in 1980/81. Stage 2. comprising the third and fourth units is scheduled for full load by the winters of 1980 and 1981 respectively. Design work Design work for a gravity type regulating dam, approximately 9 km for Stage 2 has been completed and orders for the main plant have downstream from the power station is proceeding satisfactorily, been placed. Site works commenced late in 1974. Civil works and tenders for its construction will be called in May 1977. including foundations for the boiler house, turbine house, The Snowy Mountains Engineering Corporation was engaged as a turbo-generators and the cooling tower are proceeding behind consultant for the study of expected surge behaviour in the program due to industrial unrest Dartmouth River and to advise on other design aspects. The Environmental Protection Authority has granted licences for The station will be Victoria's largest single hydro-electric power operation of Stages 1 and 2 of the power station subject to the station and will be remotely controlled from Mt. Beauty installation of additional instrumentation to provide for comprehen approximately 40 km away. sive sampling and recording of all discharges from the station. RUBICON FALLS HYDRO-ELECTRIC POWER STATION: LOY YANG PRO.IECT 50 YEARS OF SERVICE As reported last year, the Government arranged for a Parliamentary On 19 August 1926, Rubicon Falls, Victoria's smallest and oldest Public Works Committee to conduct a public inquiry into the operating hydro-electric power station, with a generating capacity of proposed Loy Yang generating project The Committee presented .25 MW, commenced generation to supply electricity for construction its Progress Report No. 1 on the Loy Yang Coal Reserves Inquiry work on the Rubicon/Royston hydro-electric scheme. On 29 March on 18 December 1975. it recommended 1928 it was connected to the State grid. The original plant comprising "1 That the Government authorises the State Electricity Commission a Boving 400 hp, 500 rpm impulse turbine coupled to a 275 kVa ASEA · of Victoria to proceed with the planning of the Loy Yang Project generator is still operating. Apart from a few outages in its early years based on the development of a 4 000 MW power generating station the station has operated almost without interruption during its lifetime. 15 Transmission and Distribution System
In recent years, considerable planning has been directed to Modifications to the East Rowville terminal station and construction improving the utilisation of existing transmission assets with the of the 220 kV transmission line to John Lysaghts (Australia) result that the increased demand on the transmission network has steelworks at Tyabb are well advanced. been largely met by existing facilities. it has been possible On 23 December 1975 the Parliamentary Public Works Committee to defer augmentations in all but two zone sub-stations. handed down its recommendations into the proposed route of a No new high voltage transmission lines were completed during 220 kV transmission line between the Dartmouth power station and the year. At present there are 3 700 route kilometres of high voltage Mount Beauty terminal station. These recommendations were transmission lines in service comprising 400 kilometres of 500 kV approved by the Governor in Council. However, following lines, 700 kilometres of 330 kV lines and 2 600 kilometres of representations to the Premier by a number of conservation groups, 220 kV lines. the Government approved an amended route generally to the north of the original route. so that it by-passed a number of TRANSMISSION PLANNING environmentally sensitive areas. Detailed surveys are now Planning and design commenced for a 330 kV transmission line proceeding and the line is planned to be brought into service from Dederang to Wagga in New South Wales via Wodonga by late i 979. and Jindera, near AI bury, to augment supply capacity to the Wodonga/ Albury Regional Development Centre. Extensive The Commission has developed a new design for 220 kV towers consultations with public authorities and conservation bodies have which represents a significant improvement in their aesthetic been initiated and a Statement of Environmental Considerations appearance. A prototype suspension tower is currently under for the project is currently being prepared. test before being accepted for use. The performance of transmission lines and plant has continued In November 1975 a new extra high voltage linesmen's training to be very good. Major disturbances on the Victoria/New South centre was opened at South Morang to provide specialised training Wales interconnected system were controlled satisfactorily without and refresher courses for qualified linesmen. endangering the overall system operation. Operation of the SUB-TRANSMISSION AND DISTRIBUTION SYSTEMS 500 kV and 330 kV networks was fault free, and 65% of the New 66 kV lines were constructed between- faults on the kV network were transient and the lines 21 220 • Leongatha and Wonthaggi and Wonthaggi and Cowes to quickly reclosed automatically after fault clearance. No major reinforce supply in South Gippsland and Phillip Island. transmission plant failures occurred during the year. Some corrosion, believed to be caused by industrial emissions, has been • Terang and Koroit and Koroit and Portland to provide an detected on the 500 kV lines and corrective action has alternative supply to the Portland area. been initiated. • A point near Ballarat to the Bungle Dam to operate pumping Electrical and civil design work for the redevelopment of the main equipment essential to the water supply to Ballarat System Control Centre at Richmond is proceeding. In addition 66 kV lines which will initially operate at 22 kV were The Keilor Control Centre, which monitors operation of the western constructed between Red Cliffs and Mildura and Toolondo and metropolitan transmission network, has been completed and Edenhope to improve supply in the respective areas. Supply at construction of the Latrobe Valley Cont1·o1 Centre is well advanced 66 kV between Ballarat and Ballarat North terminal stations has and will be in service in October i 976. been improved. A new area centre has been constructed at Thomastown at a cost Within the metropolitan area 10.5 route kilometres of overhead of $622 000 to accommodate employees engaged in the line were converted from 11 kV to 22 kV operation and 14.6 construction and maintenance of transmission facilities in the kilometres of underground cable were converted from 6.6 kV to northern metropolitan area. 11 kV operation in the inner suburban areas.
---····-- ..... ______
16 Electricity Production
SOURCES OF ELECTRICITY FOR STATE SYSTEM EXPECTEDt INSTALLED• MAXIMUM MAX IMUM OUTPUT CAPACITY OF PLANT ACHIEVED BY GENERATORS CAPABILITY EACH PLANT GWh GENERATED POWER STATIONS (30/6/76} (30/6/76} 1975/76 1974/75 1975/76 1974/75 MW MW MW MW HAZEL WOOD 1 600 1 335 1 390 1 500 9 132 8 238 BASE LOAD YALLOURN 546 440 474 493 2 361 2 545 THERMAL STATIONS YALLOURN W 700 700 714 702§ 3 539 2 409 MORWELL 170 160 175 180 1 165 1 264 SUB-TOTAL 3 016 2 635 16197 14 456 (86 %) (82%) PEAK LOAD NEWPORT 198 136 162 125 134 137 THERMAL SPENCER STREET 90 60 60 STATIONS RICHMOND 38 26 35 SUB-TOTAL 326 136 135 138 (1 %) (1 %) KI EWA 184 206 185 20 1 394 452 HYDRO STATIONS El LDON-RUBICON (incl Cairn Curran) 135 133 143 135 415 539 SUB-TOTAL 319 339 809 991 (4 %) (5%) STATIONS OPERATED BY OTHER BODIEStt 1 084 1 075 1 199 1 108 1 759 2 091 (9%) (12%) TOTAL INPUT TO SYSTEM 18 900 17 676 4 745 4 185 (100%) (100%) GENERATED FOR EXPORT AND PUMPED STORAGE OPERATION 955 643 VICTORIAN SYSTEM REQUIREMENT 17 945 17 033 1975/76 1974/75 System Maximum Demand MW to 30 June 3 354 3 182 (21 / 6/76) (19/6/75) System Maximum Demand MW for Winter 3 389 3 194 (14/7/76) (1 1 /8/75) Actual Plant Capability MW at 3 726 3 805§ Time of Maximum Demand (21/6/76) (19/6/75)
§Includes test load on Yallourn W2. ' Installed capacity is the manufacturer" s maximum continuous rating of generators. This is subject to limitations imposed from time to time by shortage of other essential elements such as boiler capacity. circulating wa ter, manning (steam sets) or water (hydro sets). tExpec ed maximum plan capability is the output he plant is expected to produce during the winter period at morning and evening pea ks. ttlhis capacity refers o V1ctona's ftrm ent1llemen from the Snowy Mo mtains schem e, plus hall the capacity of Hume power station. The output from the Snowy Mounta1n s scheme. after meet1ng Commonwea lth reserva ti ons, is shared between New South Wales and Vi ctor1 in the ratio 2: 1 and the output from Hume power station is shared equally be1ween New South Wales and Victoria. Figures for electricity generated also include interchange from New South Wales and purchases from Alcoa of Australia Ltd. (Anglesea), Phosphate Company of Australia (Geelong and Portl and), Tumut River County Council and th e Electricity Trust of South Australia. Interchange arrangements wllh th e Electricity Commission of New South Wales continued to work sati sfactorily to the mutual advantage of both State systems.
ELECTRICITY PRODUCTION 1966-1976 Base year 1965/66 - 100 200
150
------50 Oil Hydro Stations (Incl. Snowy & Hume)
Briquettes • Raw D Brown Coal 1966 '67 '68 '69 '70 '71 '72 '73 '74 '75 '76 17 Brown Coal Development
BROWN COAL PRODUCTION BROWN COAL PRODUCTION 1946-1 976 (Megatonnesl 30 OVERBURDEN COAL WON REMOVED Mt Mt m' MILLION 1975/76 TO DATE 1975/76 Yallourn 12.5 358.0 4.4 Morwell 15.4 153.5 2.1 Yallourn North 0.2 234 Totals 1975/76 28.1 534.8 6.5 Totals Last Year 26.3 506.7 5.8
The output from Morwell open cut and from all open cuts combined is the highest yet recorded. The Latrobe Valley power stations consumed 254 megatonnes of the combined production of the Yallourn and Morwell open cuts; the balance (2.5 megatonnes) was used in the manufacture '51 '61 '66 '71 of briquettes. 1946 '56 '76 Coal won at Yallourn North Extension open cut was mainly used by Australian Paper Manufacturers Ltd . at Maryvale. Morwell Open Cut • Yallourn North Open Cut MORWELL OPEN CUT The western operating face is now starting to pivot to a new Yallourn Open Cut alignment to advance south-west through the Morwell River flood plain. Approximately 4 km of the Morwell River is to be diverted LOY YANG OPEN CUT for this purpose and the necessa ry earthworks are expected to be Operations in the open cut must commence in October 1980 completed early in 1977. The channel will then be grassed and almost eighteen months prior to delivery of coal to the Loy Yang water is expected to be diverted by early 1978. A detailed plan power stations. Erection of a new bucket wheel dredger with a together with a comprehensive environmental report was publicly capacity of 60 000 tonnes/day (which is almost twice the capacity exhibited before the proposals were adopted. of the Commission's largest existing dredger) must commence Earth move ments in and around the open cut have been early in 1979. Ultimately four dredgers and associated transport successfully controlled by the release of some 34 megatonnes systems capable of delivering coal to the raw coal bunker or of artesian water. This water has been used in the Hazelwood overburden to the dumps will be required. cooling pond thus reducing the demand for make-up water from Operations will commence in the south-west corner of the open the Latrobe Valley Water and Sewerage Board Supply. cut site and extend in a north westerly direction over a period of Because of unstable overburden material encountered and to 18-20 years, ultimately reaching a depth of approximately 200 m. ensure the safe operation of No. 10 dredger an auxiliary conveyor The operating faces will then be turned at approximately 90 ° and was installed and the first of two clay holes was excavated in the advance eastward. 1975/76 summer. The second will be excavated during the 1976/ 77 summer. BROWN COAL DRILLING The continuing program of exploratory drilling to complement YALLOURN OPEN CUT current knowledge of the extent of the Gippsland Brown Coal The 3rd and 4th units of the Yallourn W power station now under deposits has been accelerated. construction, will require an increase in output from this open cut from almost 13M tonnes per annum in 1975/76 to an estimated 21 M tonnes in 1981/82 This will be met by the transfer of existing plant and the provision of new facilities and plant. Four new conveyor routes will be installed and on completion by 1981, all rail tracks in the open cut will be removed. The first stage provides for a new bucket wheel dredger (No. 13-capacity 1 500 m'/h), a complete conveyor system (4.5 km-1 400 mm) and an overburden stacker (TS3) to be in service in 1977. A new mechanical and electrical maintenance depot costing in excess of $1 M is being constructed and planning is well advanced for a new centre from which the operations in the Yallourn open cut will be controlled. Electrical and water services to the open cut are being improved to meet the expansion of operations. Overburden dump batters and recently excavated overburden faces are being progressively top-dressed and grassed.
18 Review of M~or Activities
Marketing and Distribution
MARKET DEVELOPMENT GROWTH OF RETAIL ELECTRICITY SALES IN VICTORIA GWh As mentioned earlier in this report, the Commission has modified its marketi ng plan in recognising the need to ensure that the level of competition remains within reasonable limits. lt took the lead in 16,000 reducing its advertising expenditure and following discussions with the Government has discontinued promotional advertising until 14,000 appropriate rules have been agreed upon in keeping with the State's energy policy. The Commission is pursuing policies to 12,000 encourage the economic and effective use of electricity and the use of electricity produced from brown coal in meeting the energy 10,000 needs of Victoria. 8,000 Through its advisory services the Commission has continued to direct its marketing program towards achieving a more evenly 6,000 distributed load on the generating system By the selective promotion of off-peak and high load factor applications of 4,000 electricity, the Commission is able to achi eve a more efficient and economical utilisation of plant and equipment res ulting in long-term benefits for its customers. Over the past decade the load factor on the Commission's interconnected system has increased from 58.3% to 64.2%. 1946 '51 '56 '61 '66 '71 '76 Th ere has been a continued increase in interest by customers in these applications. As an example, the installation of off-pea k Industrial Commercial . Domestic storage floor heating increased by 131% during the year compared with 11 3% last year. 0 Traction • Public lighting SHARE OF NEW HOME MARKET COOKING WATER HEATING The number of domestic customers increased by 2.6% compared Total fo r Victoria 58% 57% with 2% in 1974/75, average consumption per customer rose by only 1.9% compared with 11 .2% in th e last year. COMMERCIAL AND INDUSTRIAL USES Customers in these classes have maintained their interest in the YEAR ENDED NUMBER OF RETAIL AVERAGE KWh SOLD PER application of electricity for storage heating, air conditioning, 30 JUNE DOMESTIC CUSTOMERS DOMESTIC CUSTOMER catering appliances, infra-red applications and induction heating. (000) 1956 475 2 098 ELECTRICITY SALES The continuing adverse economic climate in Australia was 1966 732 3 293 refl ected in an increase of electri city sa les of only 4.8% compared 1976 1 008 5 065 with 6.5% last year. Sales of electricity for traction services increased by 7.0% to 270 GWh compared with an increase of 4.6% last year, reflecting ELECTRICITY SALES & INCOME the improvements in metropolitan rai l services implemented by Subdivision according to classes of customers Year ended 30th June 1976 the Victorian Railways during the year. SALES (TOTAL 14907 Gwh) TRACTION COMMERCIAL PUBLIC LIGHTING 2% 11% Electricity for public lighting purposes totalled 87 GWh, an increase BULK SUPPLIES INDUSTRIAL DOMESTIC 22% 30% 34% of 7. 1% compared with 4.9% in the previous year. A fu rther 51 kilometres of high level traff ic route li ghting was PUBLIC install ed in th e metropolitan and country areas making a total of LIGHTING 1 000 kilometres. Fifty-one street lighting schemes representing 1% some 62 kilometres of lighting on State Highways and Declared INCOME (TOTAL $382.4M) Main Roads were approved in accordance with th e Country Roads TRACTION COMMERCIAL (Amendment) Acts 1971 and 1973. The Commission is contributing, 2% 18% as its share, approximately $148 000 per annum towards the BULK IN DUSTRIAL DOMESTIC operating charge for 152 kil ometres of approved lighting schemes. SUPPLIES 25% 35% 19% PUBLIC LIGHTING 1%
RETAIL SALES Sales to industrial customers totalled 4 485 GWh. While this represented a more favourable increase of 4.3% compared with 0.3% in 1974/75, the increase was still below normal expectations for this class of customer. On the other hand, the commercial retail sector was relatively buoyant throughout the year evidenced by an increase of 7.9% a little lower than the hi gh rate of increase of 10.1% in 1974/75 . There was a significant downturn in the growth in domestic sales from 13.4% to 4.7%, but this no doubt res ulted, at least, in part from the comparatively mild weather experienced during both the winter and summer periods. 19 BULK SUPPLY ELECTRICITY SOLAR ECLIPSE Sales to bulk supply authorities total 3 342 GWh, an increase of In consultation with State and local authorities the Commission will 3.8% compared with 4.3% in 1974/75. arrange where possible, special switching of public lighting and security lighting in areas affected by the total solar eclipse on SUPPLY SYSTEM Saturday, 23 October 1976. The total number of customers supplied by 30 June 1976 was 1 187 233, an increase of 27 700 over last year. UNDERGROUND DISTRIBUTION Because of the interest of municipal councils and estate developers INCREASE in the appearance of new estates, the practice of undergrounding % all or part of the distribution facilities is increasing. During the year 3.7 5 900 allotments were reticulated by underground supply compared with 3 200 in 1974/75-an increase of 84%. MELBOURNE MUNICIPAL ELECTRICITY DISTRIBUTION AUTHORITIES A special financial arrangement which was accepted by all but one of the municipal electricity supply authorities operated satisfactorily over the two year trial period. The Commission has offered to extend the trial period by a further one or two years when the current PRIVATE GENERATION period terminates. Industrial bans on the construction of Newport power station and the consequent possibility of electricity restrictions in future years AFTER HOURS CUSTOMER SERVICE have revived interest in private generation. The Commission Previously customers who contacted a local district office after hours believes that this is to be regretted as it does not make for an number for emergency service were then switched to the Duty efficient use of the State's resources. Officer; however, this practice had to be discontinued as a result The economics of private generation are such that few installations of industrial action by the Municipal Officers' Association. are proceeding. Customers who require emergency service at a time when the district office is not manned are directed by an automatic answering CONSERVATION OF ENERGY IN BUILDINGS device to co.ntact an appropriate report centre where there is a As reported in the 1974/75 Report, the Commission, in keeping with 24-hour service. To maintain a high standard of service, the public attitudes, is actively examining developments in all forms of Commission has introduced special equipment to assist report energy conservation. The Commission is represented on the Task officers to quickly and accurately direct availability staff to attend Force on Energy established by the Institution of Engineers to after hours service calls. Two key items of equipment which enable investigate methods of energy conservation and is maintaining a the Commission officers to maintain the best possible after hours close liaison with building industry experts, particularly in regard to service are- the advantages of electrically-driven heat pumps and the integrated • a microfiche reader which displays for report officers details of environmental design concept for buildings. substations from which customers are supplied, thus enabling the rapid location of the fault source; SOLAR ENERGY The Commission is maintaining an active interest in the development • a "Magicall" automatic dialling telephone facility which enables of solar energy. it is currently conducting performance testing of report staff to automatically call the appropriate availability officer solar preheating for water heating and is assisting the University of to attend to a service call. Melbourne and the CSIRO in the development of solar heat pumps. In addition, the Commission has developed and is installing a On a cost of supply basis the Commission would be justified in district radio based paging system which provides a coded radio charging higher tariffs for electrically boosted solar water storage signal to a personal portable receiver, thus allowing greater heaters, but it is continuing to charge at the concessional off peak flexibility of movement for availability personnel but retaining the rates to encourage the conservation of energy. ability to rapidly contact these people when required to attend to a service call. The new procedure may require some customers to make a longer distance telephone call if service is needed out of office hours. However. records show that any one customer rarely has to make such calls. While the new system appears to be working satisfactorily, possible improvements are continually being investigated to ensure that the after-hours service is maintained at a high standard. REGIONAL ORGANISATION Now that electricity supply has been extended to virtually the entire State of Victoria, activity on major extensions has almost ceased. The future work load now will comprise principally maintenance, supply augmentation and estate development in urban centres. Changes in geographical and functional organisation in line with this shift in character of regional activity are now being considered to make the most effective use of the skilled personnel and physical resources available. Accordingly, an overall review of the regional and district organisation is currently being conducted by a firm of management consultants, in collaboration with senior Commission officers.
20 AMALGAMATION OF DISTRICT OFFICES As a corollary of the policy of operating as economically as possible while maintaining a high standard of customer service, the Commission closed the Woodend District Office on 1 December 1975 and transferred its operations to the Kyneton District. Beechworth office was closed on 25 June 1976 and its operations transferred to Myrtleford. D:STRIBUTION TRAINING CENTRE On 23 June 1976 the Hon J CM Balfour, MP, Minister for Fuel and Power, officially opened a $400 000 extension to the Commission's Distribution Training Centre at Chadstone. The improved facilities are needed to increase the Training Centre's capacity to meet the training requirements of personnel from within the Commission, bulk supply authorities and major customers and interstate authorities. Approximately 240 apprentice linesmen are in training at the centre which provides a wide range of courses for linesmen and high voltage operators. Some 760 people will receive training during 1976.
BRIQUETTE PRODUCTION AND SALES
TOTA L PRODUCTION {KILOTONNES) 1971/72 1 329 1972/73 1 221 1973/74 1 164 1974/75 1 092 1975/76 946 Sales to the public were 782 kilotonnes compared with 921 kilotonnes last year. Both domestic and industrial sales were lower than last year. Industrial and domestic prices had to be increased on 20 August 1975 to offset increased costs. Australian Char Pty Ltd and the Gas and Fuel Corporation of Victoria, through its Colonial Gas Division, used 146 kilotonnes for the production of char, most of which was exported. Exports of briquettes almost doubled to 1 597 tonnes.
BRIQUETTE SALES 1972-1976 {Kilolonnes)
100 200 300 400 500 600 700
21 YALLOURN TOWNSHIP SCIENTIFIC RESEARCH As previously reported, the Government confirmed the validity of The world-wide movement back to coal as a basic material, not only the Commission's proposal to remove the Yallourn township to for conventional combustion processes but also for the manufacture enable coal reserves beneath the township to be won after taking of other hydrocarbon products such as synthetic o1ls, has focussed into account recent new developments including the proposed attention on the potential of the vast Victorian brown coal deposits. doubling of the capacity of Yallourn W power station. The Government of Victoria, recognising the possible long-term On 11 September 1975, the Trades Hall Council after consultation need for converting brown coal to liquid products has established with the Central Gippsland Trades and Labour Council lifted bans the Victorian Brown Coal Research and Development Committee to on the removal of houses from the Yallourn township. advise it, through the Minister for Fuel and Power, as to the uses of The resettlement of the people of Yallourn in neighbouring areas brown coal for purposes other than power generation. Background presents the Commission with a major and unique task. Residents knowledge within the Commission about the Victorian brown coal are moving from the town at a steady rate, but a continuous review resources has been recognised and much of the Committee's of the situation is required to ensure that the resettlement program activity since its inception in August 1975 has revolved around the proceeds smoothly and with due regard to human factors involved, Commission's expertise and experimental facilities. The Committee including the welfare and individual needs of residents. was inaugurated by the Premier of Victoria at a ceremony at the Herman Research Laboratory on 5 August 1975 and the Laboratory On 16 July 1975 the Commission announced the appointment of has contracted with the Committee to manage and largely conduct Mr R Burkitt, a former Commissioner of the Housing Commission, as its first major experimental program. Samples obtained from open an independent arbitrator to determine the extent to which existing cuts and by drilling in brown coal areas are being examined for sporting, recreational and general community facilities in Yallourn chemical, physical and petrographic characteristics relevant to should be re-established elsewhere and the most appropriate conversion processes. A new laboratory building is being locations for these within the neighbouring municipalities. Mr Burkitt constructed adjacent to the existing laboratory for work in coal presented his findings in August 1976, and his recommendations science to permit the Commission's and the Committee's interests appear to have been favourably received by those concerned. to be more effectively served and will accommodate specialists who Discussions are now being held with the five neighbouring municipal may work with the Commission on coal evaluation techniques. councils involved. The relocation of these facilities will involve the Commission in an outlay of $2.9M which will be paid into trust HERMAN RESEARCH LABORATORY: FIRE accounts and accumulate interest. Councils will receive progressive On 10 February 1976, fire caused extensive damage to the fourth payments as and when expenditure is committed or incurred for floor of the Herman Research Laboratory at Richmond. Equipment replacement projects such as sporting venues, library and welfare and valuable records were lost. However, because of the quick facilities. reactions of staff in placing temporary coverings over valuable No compulsory movement of Yallourn tenants will be required before equipment as they evacuated the building, and the prompt action 1979, but the voluntary movement of people from the town continues of firemen in further covering equipment with heavy tarpaulins, at a steady rate. Since January 1973, more than 700 tenants and damage, which was estimated at $250 000, was generally confined their families have resettled elsewhere. to the fire area on the fourth floor. A further survey of remaining residents was undertaken in May 1976 to ensure that alternative accommodation provisions continue to be PUBLIC SAFETY based upon the personal preferences of residents. and other regulatory responsibilities ELECTRIC LIGHT AND POWER ACT 1958 NEW LEGISLATION Twelve municipal electrical supply undertakings operate in Victoria The following legislation was enacted during the year: under the provisions of this Act. Of these, eleven are located in the State Electricity Commission (Amendment) Act 1975 which metropolitan area and receive supply in bulk from the Commission. amended- The other undertaking is operated by the Monaro County Council of State Electricity Commission Act 1958 to provide- New South Wales which, by arrangement, has extended its supply • for an increase in the Commission's borrowing authority by $250M mains to serve the isolated areas of Bendoc and Bonang in the far to $1 375M; north east of Victoria. • that only contracts over $250 000 in value require the sanction of the Governor in Council; LICENSING OF ELECTRICAL MECHANICS • for the conversion of imperial measurements to metric equivalents; A total of 19 247 licences was in force in the following grades- • for the validation of the payment of remuneration and allowances Grade 'A' 12 893 to members of the Electrical Approvals Board; Grade 'B1' 127 • for the simplification of procedures for the disposal of land surplus Grade 'B' 2 787 to the Commission's requirements; and Grade 'C' 1 205 Grade 'P' 1 052 Electric Light and Power Act 1958 to provide- Grade 'R' 1 183 • for the extension of provisions to enable proceedings taken Two licensing examinations were held and in addition, the against persons who wilfully or without lawful excuse permit the Commission's Board of Examiners conducted the Education connection of electricity supply to their premises to be dealt with Department's Annual mid-year and supplementary examinations in summarily by a Stipendiary Magistrate. Electrical Wiring, Grades Ill and IV, at technical schools throughout (Previously some of these offences were required to be heard in Victoria. In all4 619 candidates were examined. higher Courts.) State Electricity Commission (Tramways) Act 1975- REGISTRATION OF ELECTRICAL CONTRACTORS • to validate temporary financial commitments entered into by the Current registrations are 2 764-being 316 more than the Commission with private bus proprietors to enable the provision of previous year. satisfactory omnibus services to operate in Ballarat and Bendigo to ELECTRICAL APPROVALS BOARD replace the tramway services abandoned in those cities in 1971 and The Commission records its sincere appreciation of the valuable 1972 respectively. contribution to electrical safety which continues to be rendered by members of the Board. Under the Board's constitution, two of its six members retire each year and are eligible for reappointment. Mr N H Armfield,
22 representing the interests of the wholesale electrical traders of Mr R W URIE, BSc(Melb), SM(ChemEng)(MIT), FRACI, SFinstF, Victoria, and Mr R W Rose, representing the interests of electrical formerly Chief Engineer, Planning and Investigations was contractors in Victoria, were reappointed for a further term of appointed Manager, Research and Development and three years Mr I W Meldrum, MSEE, BMechE, DipEE, FIEAust, SMIEEE, During the year 569 articles were tested by the Board increase MAustiMM, formerly Principal Projects Planning Engineer, was of 16% over 1974/75) and approval was given in respect of 517 appointed Chief Engineer, Planning. articles. In addition, the Board dealt with 387 applications in OTHER SENIOR APPOINTMENTS respect of non-prescribed articles submitted under the Mr R J HILL, DipEE-was appointed Manager, South Western Commission's voluntary approvals scheme. Electricity Supply Region on 6 September 1975. He was formerly ELECTRICAL FATALITIES Distribution Engineer, South Western Electricity Supply Region. Of 21 electrical fatalities during the year (12 in 197 4/75), nine Mr E F Patterson, BCom, was appointed Manager, North Eastern resulted from incorrectly connected or defective flexible cords, four Electricity Supply Region on 3 November 1975. He was formerly from interference with fixed wiring, five from contact with overhead Manager, Customer Relations, Metropolitan Electricity lines, two from accidental contact with fixed wiring and one from Supply Region. ineffective earthing of portion of an electrical installation. Mr J K Griffin, DipEE, DipME, MIEAust, was appointed Manager, In addition, three fatalities resulted from wilful contact Northern and Midland Electricity Supply Region on 3 November The Commission maintains a continuing program to encourage 1975. He was formerly Manager, North Eastern Electricity the public in the safe use of electricity. Because of an increase in Supply Region. the incidence of yacht masts fouling aerial conductors, a special Mr CD Polglaze, DipEE, MIEAust, was appointed Deputy program has been undertaken to bring to the notice of yachting Vice-Chairman (Engineering), Staff Board on 12 January 1976 and enthusiasts the dangers in trailing and launching yachts with masts Vice-Chairman (Engineering) Staff Board on 16 August 1976. He erected, particularly where metal masts are used. The Commission was formerly Chief Accident Prevention Engineer, Accident is ensuring that there are warning notices in appropriate Prevention Division, Personnel Development and Services locations where overhead cables are in close proximity to areas Department. where yachts may be launched. Mr H J Burn, FASA, was appointed Deputy Manager, Finance ELECTROLYSIS MITIGATION Department on 7 October 1975, and Manager, Finance Department, The Electrolysis Committee comprises representatives of the on 31 January 1976. He was formerly Chief Accountant. Funds, Commission, Electric Traction Authorities, owners of underground Loans and Disbursements, Finance Department pipes and cables in Melbourne and the Mines Department as the Mr R J Weatherhead, BEE, DipEE, was appointed Deputy pipe licensing authority. Under the Committee's direction a Distribution Engineer on 18 December 1975, and Chief Engineer, technical sub-committee continued to design, install, operate Distribution Engineering Department on 15 March 1976. He was and maintain mitigative measures. formerly Development Engineer, Development Division, Distribution Forty-four applications for permission to operate individual Engineering Department. cathodic protection schemes were approved under the Cathodic Mr R M Greenwood, BEE, DipEE, Dip ME, was appointed Assistant Protection Regulations 1970, and one permit was cancelled, Chief Engineer, Transmission Operations Department on 22 March making a total of 591 schemes operating under the Regulations. 1976. He was formerly Transmission Engineer, Latrobe Valley. RETIREMENT OF SENIOR STAFF COMMISSIONERS The Commission is pleased to record its appreciation of the Between 15 May and 6 July 1976 the Chairman, Mr J C Trethowan, splendid service recorded over long periods by the following attended the International Union of Producers and Distributors senior officers who retired on the dates shown: of Electrical Energy Conference in Austria, and visited Mr A H L Martin-Personnel Superintendent, Personnel major suppliers of electrical equipment and major electricity Development & Services Department, on 17 October 1975, after supply undertakings in the United Kingdom, Western Europe almost 43 years' service. and South Africa. Throughout the year Commissioners continued their policy of Mr R S Downey-Manager, Northern & Midland Electricity Supply Region, on 1 November 1975, after almost 39 years' service. familiarising themselves with the Commission's operations and meeting as many employees as possible. Accompanied by senior Mr AT Poustie-Market Services Engineer, Electricity Market Commission officers, they VISited numerous centres in the Mallee Development Department, on 9 December 1975, after more than and Northern and Midland Electricity Supply Regions from 7 to 1 0 45 years' service. October 1975. Commissioners visited undertakings in the Latrobe Mr VS Healey-Principal Design Engineer, Transmission Valley and Gippsland Electricity Supply Region from 28 to 30 April, Development Department, on 5 January 1976, after almost 33 1976, when they inspected resettlement arrangements for former years' service. Yallourn residents at Newborough and also the Latrobe Valley Mr LE Coulson-Adminislrative Services Officer, Secretarial Elderly Citizens' Units. They met informally with members of the Department, on 5 January 1976, after almost 43 years' service. Yallourn Town Advisory Council and visited a number of centres in Mr cl L Peppereii-Manager, Finance Department, on 30 January Gippsland Electricity Supply Region where they met many 1976, after almost 49 service. employees from these centres and surrounding areas, and local civic leaders. During this visit, the Chairman officially opened the Mr EA Foote-Coal Production Superintendent, Coal Production Gippsland Home Show at Traralgon City Hall on 29 April1976. Department, on 11 February 1976, after more than 24 years' service. Mr JP Ashmead-Construction Engineer Power, Power PERSONNEL AND ORGANISATION Department, on 28 February 1976, after more than 40 years' service. As a consequence of an upsurge in interest in the use of brown Mr J B Liddlelow-Chief Engineer, Distribution, Distribution coal as a prime source for the extraction of other fuels, the Engineering Department, on 14 March 1976, after more than Planning and Investigations Department, which was responsible 46 years' service. for all planning and research, was replaced in March 1976 by Mr BC Lauritz-Purchasing Officer, Supplies and General two new departments-Planning Department and Research and Services Department, on 12 April1976, after more than 43 Development Department. years' service.
23 Mr E F Wearne-Vice-Chairman (Engineering) Staff Board, on EMPLOYEE RELATIONS 13 August 1976, after almost 37 years' service. Time lost as a consequence of strike acti on reduced from 387 000 Mr I M Wilson- Coal Production Superintendent, Coal Production manhours in 1974/75 to 154 000 manhours. Of this, 141 600 Department, on 18 August 1976, after almost 26 years' service. man hours was attributable to the 24-hours stoppage on 18 July Mr RA Strongman-Finance Department, on 3 September 1976, 1975 when there was a strike involving "blue-collar" workers after almost 46 years' service. employed by State Government Departments and lnstrumentalities in support of a claim by Geelong Harbour Trust employees for the TOTAL PERSONNEL WAGES STAFF TOTAL continuation of certain over-award payments. Two separate stoppages, one of four-hours on 16 June 1976 and th e other of 30 June 1975 9 816 8 662 18 478 24-hours on 30 June 1976, were called by the Victorian Trades Hall 30 June 1976 9 934 8 638 18 572 Council in oppositi on to the Federal Government's plan to amend DISTRIBUTION OF PERSON NEL Medibank. Unfortunately these stoppages, which were quite unrelated to the Commission's operations, reduced generating Administration 2 1 533 1 535 capacity and on each occasion restrictions on the use of electricity Power Generation 2 293 751 3 044 were necessary tor all classes of customers. Main Transmission Lines, A nation-wide 24-hour stoppage was called by the Australian Terminal Station and Australian Council of Trade Unions on 12 July 1976 in further Substations 626 1 000 1 626 Council of Trade Unions on 12 July 1976 in further opposition to Metropolitan Region- the Medibank proposals. Both "blue-coll ar" and some "white Marketing & Distribution 627 1 416 2 043 collar employees participated and again restrictions on the use of electricity were necessary. Extra Metropolitan Regions- The 35-hour week dispute wh ich had been adjourned in Marketing and Distribution 1 719 1 750 3 469 November 1974 was reactivated in May 1976 when Latrobe Valley Briquette Production unions imposed bans on overtime and availability from 1 June 1976 and Distribution 456 197 653 in support of their claim. Th is decision was subsequently endorsed Coal Winning 948 341 1 289 by the Victorian Trades Ha ll Council General Service and As part of a.plan to intensify th e campaign, a 48-hour strike Workshops Latrobe Valley 1 826 539 2 365 from midnig ht 25 Au gust 1976 was called by the Victorian Trades Hall Council. However mass meetings of unionists rejected the General Services and Council's proposals to continue the work bans in the Latrobe Workshops elsewhere 1 437 1 111 2 548 Valley, metropolitan and country areas. The Trades Hall Council TOTAL 9 934 8 638 18 572 Disputes Committee decided to lift all work bans and limitations on 30 August 1976. PERSONNEL DEVELOPMENT The Commission firmly believes that because of the enormous cost and other repercussions to the community and the economy, th is SCHOLARSHIPS AWARDED CURRENT DUR IN G YEAR 30/6/76 matter should be resolved only before the Australian Conciliation and Arbitration Commission. At the date of this report the unions At Universities and Colleges of Advanced were considering whether they would apply to that Commission to Educati on have the earlier hearing re-opened. Degree Courses 2 12 Post Graduate Awards 3 2 Average wa ge and sa lary rates increased by 11 % during the year Diploma Courses 1 2 under review (24.7% in 1974/75), mainly as a consequence of Bursaries for Latrobe Valley Students 3 National Wage Case increases awarded by the Australi an Conciliation and Arbitration Commission in September 1975 (3 5% ). 6 19 and f-ebruary 1976 (6.4 %) and May 1976 (3 % with mi nimum of EXPERI ENCE AND STUDY AWARDS 6 6 $3.80) There were also significant increases in rates fo r availabili ty TRAINING SCHEMES and duty offi cer work and various increases in allowances Technical Trainees 195 granted to metal workers. Apprentices 757 The Commission's Long Service Leave Regulations were varied Commercial Training 31 with effect from 1 July 1976 to permit employees to clear accrued Stores Trainees 15 leave entitl ements in shorter periods and to remove the provision Other Technical Trai ning 54 concerning the clearing of su ch entitlements. INTERNAL TRAINING COURSES Attended during year 596 DISABLING INJURY STATISTICS Number of disabling injuries per million man-hours worked. 50 STAFF DEVELOPMENT Special attention is being given to ways and means whereby officers can be assisted to derive greater satisfaction in their present ~------· positions and be provided with job opportunities and experience aimed at enhancing their prospects for futu re advancement. As report ed last year a number of departments have established Committees tor this purpose and th e interest shown by staff in the Committees has steadily increased.
ACCIDENT PREVENTION The number of disabling injuries increased for the third consecutive year as indicated in the adjacent graph. In order to reverse this trend, special attention is being given to safety training, inspections and the development of techniques for improved accident control.
24 1966 '67 '68 '69 '70 '71 '72 '73 '74 '75 '76 Yea rs ended 30th Ju11e Above: Brown coal output is continuing to increase to meet the demands of new and Above: Employee training is an important factor in the Commission operations larger power stations- No. 9 Bucket wheel dredger Morwell Open Cut. an apprentice receives instruction on a 500 kV line. Below: Rubicon Falls hydro-electric generating station with a .25 MW capacity Below: The two 350 MW generators of Yallourn W Power Station Stage 1 are the still operating after 50 years' service. largest units so far in the Commission's generating system.
25 Above: Rocky Valley Dam, main storage of the Kiewa hydro-electric scheme is fed from. the snowfields of the Bogong High Plains. Falls Creek ski village nearby is a popular resort. Below: The Commission provides an advisory service to assist customers in Below: The development and use of electric vehicles is increasingly important assessing the most effective and economic use of electricity. for conservation of the environment and fuel.
26 SUP,PLIID PROM ILICTtiCITY TtUST OP I. AUST. STATE ELE CTRICITY COMMISSIO N OF VICTORIA + ELECTRICITY SUPPLY GENE RATION, TRANSMISS ION, SUB TRANSM ISSION, HIG H VOlTAGE DISTRIBUTIO N
30 th. JUNE 1976
REFERENCE
0 GENERATING STAT ION - THERMA L
!2Z2l G ENERATING STATION - HYDRO
D TER M I NAL STATION
• ElECTRICITY SUPPLY REG ION OFFICE ~AALLEE 0 ELECTRIC ITY SUPP LY DISTRICT OFF ICE TRANSM ISSION LI NE TRANSM ISS ION LI NE ""330 kV"} 0 N UMBER OF C IRC UI TS TRANSMISSION LI NE 220 kV
TRANSMI SS ION AND SUB -TRANSMI SS ION LI NE · 66 kV
DISTRIBUT ION LINE ·22kV & 12 ·7kV
Tra nsmiss ion ·end Oi s1 rib u1 ion l ines Under Conslruclion A re Represented By Broken l ines.
WALES
3 .30kV TRANSMISSION LINU fRO M SNOWY MOUNTAI NS HY DRO. lLICTR IC AUTHORITY
::t 1- ::J 0 C/)
IUrP,LIIO PROM ILICTIICITY TIUST OP S, AUST.
'7 28 Statistics
STATE ELECTRICITY COMMISSION OF VICTORIA
CONTENTS Page Generators and Boilers Installed 43 Record of Ten Years' Progress 30 Generation of Electricity 46 Ten Years of Financial Statistics 32 Load Factors and Fuel Used 48 Revenue Account Supplementary Information 34 Transmission and Distribution Systems 50 Balance Sheet Supplementary Information 37 Brown Coal and Briquette Production 52 Electricity Customer Statistics 41 Electricity Supply- Retail- State of Victoria 54 Electricity Sales and Income 42 Statistical Summary- State of Victoria 55 Electricity Generation and its Disposition 42 Schedule of Standard Tariffs 56
29 APPENDIX 1 Ten Years' Progress
ELECTRICITY PRODUCTION AND SALES
Installed generating capacity (nameplate rating) MW
Maximum coincident demand on interconnected system (winter) MW
Overall electricity generated (incl. purchases) GWh
Electricity sales (Victoria)* GWh Number of customers (excl. bulk supplies) 000 Average kWh sold per customer*-
Domestic kWh
Commercial kWh
All customers (excl. bulk supplies) kWh
Average kWh sold per head (Victoria) kWh
Average price per kWh sold*-
Domestic c Commercial c Industrial c All customers (excl. bulk supplies) c All supplies c *These figures do not include allowances for unread meters
BRIQUETTES
Produced tkt Sold and used in power stations kt
BROWN COAL PRODUCED
Yallourn Open Cut kt
Yallourn North Open Cut kt
Morwell Open Cut kt
TOTAL kt tkt = kilotonnes = tonnes thousands
30 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966
4 745 4 395 4 330 3 863 3 719 3 531 3 546 3 332 3 121 2 896 2 395
3389 3194 3 099 2 934 2 749 2 583 2 536 2 387 2429 2 171 2 037
18 900 17 676 16 575 15 277 14640 14 085 13454 12 A68 11 935 11 209 10 282
14 907 14 230 13 358 12 492 11 697 11 248 10 563 9 895 9 341 8 837 8 222
1187 1 160 1 146 1 113 1 077 1 045 1 015 982 944 911 876
5065 4 972 4 472 4 255 4176 3 962 3 850 3 750 3474 3433 3 293
17 696 16 661 14 967 13 850 13 122 12 282 11 276 10 797 9 833 9 297 8 694
9 861 9 611 9 088 8 711 8 299 8 258 7 978 7 714 7 583 7 441 7186
4 000 3 831 3 651 3448 3 259 3 173 3 043 2 911 2 796 2 687 2 548
2.62 2.42 2.21 2.00 2.01 2.05 2.08 2.09 2.04 2.00 2.02
4.18 3.80 3.43 3.12 3.15 3.24 3.30 3.32 3.29 3.22 3.25
2.13 1.96 1.76 1.64 1.66 1.63 1.70 1.74 1.63 1.58 1.57
2.67 2.45 2.20 2.01 2.03 2.02 2.07 2.10 2.00 1.94 1.94
2.49 2.26 2.07 1.89 1.87 1.86 1.91 1.91 1.88 1.83 1.86
946 1 092 1 164 1 221 1 329 1 391 1 565 1 495 1 773 1 849 1 913
947 1 094 1 151 1 238 1 415 1 389 1 486 1 656 1 732 1 823 1 855
12 486 11 942 10 105 8 285 8 787 9 547 10 267 12 080 12 172 13 291 13 987
242 273 307 255 316 347 403 466 425 429 435
15354 14 105 14 736 14 396 13 491 11 990 12 485 10 280 10 285 8 616 6 983
28 082 26 320 25148 22 936 22 594 21 884 23 155 22 826 22 882 22336 21 405
31 APPENDIX 2 IenYears of Financial Statistics
REVENUE ACCOUNT
INCOME
Electricity sales
Briquette sales
Brown coal sales
Tramways*
Deduct: Operating expenditure
Deduct: Finance charges and special provisions Interest (including loan flotation expense)
·····--·~·--·······--·~----- Balance of Yallourn resettlement expenditure previously capitalised
Miscellaneous Expenditure
Additional depreciation of briquette factories and depots
Provision for accruing long service leave and retiring allowances
Statutory transfer to Consolidated Fund of Victoria BALANCE OF INCOME USED FOR CAPITAL WORKS
BALANCE SHEET
Fixed assets expenditure
Deduct: Provision for depreciation
Fixed assets (depreciated)
------······--·~--···------Current assets
Investments
Long term debtors
Deferred charges
TOTAL ASSETS
Capital liabilities
Deferred liabilities
Reserves
Current liabilities
TOTAL LIABILITIES
·····--·~------.. -~····~·--- *Tramways systems ceased operations in 1971/72. 32 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 $M $M $M $M $M $M $M $M $M $M $M
386.5 336.3 287.2 241.9 228.5 219.7 211.6 201.0 184.1 167.5 156.1 11.1 11.4 10.1 10.3 11.5 11.5 12.3 13.3 12.5 12.5 12.3 0.6 0.5 0.5 0.5 0.5 0.6 0.6 0.8 0.7 0.7 0.7 - - -- 0.1 0.2 0.3 0.2 0.2 0.3 0.2 398.2 348.2 297.8 252.7 240.6 232.0 224.8 215.3 197.5 181.0 169.3 296.0 254.5 214.2 191.5 179.4 164.1 148.5 144.0 134.2 127.8 119.6 102.2 93.7 83.6 61.2 61.2 67.9 76.3 71.3 63.3 53.2 49.7
80.1 68.9 65.0 61.8 58.5 54.7 51.7 48.5 47.6 42.4 40.0 0.6 1.8 1 .1 1.2 0.9 0.8 0.7 0.6 0.6 0.7 0.9 1.0 5.9 6.0 6.0 4.0 5.0 3.3 9.0 5.0 2.7 8.0 6.0 16.2 14.2 12.1 10.1 10.0 9.7 7.2 7.0 6.6 5.6 0.5 0.2 0.5 0.3 11.6 8.1 0.1 2.9 3.2 2.4 0.3 3.2 (loss) (loss)
1 876.5 1 740.6 1 641.3 1 562.6 1 484.8 1 426.7 1 350.2 1 270.7 1 184.3 1 098.8 1 009.1
609.9 554.4 508.6 462.3 419.7 399.4 368.2 329.2 293.9 260.4 226.7 1 266.6 1 186.2 1 132.7 1 100.3 1 065.1 1 027.3 982.0 941.5 890.4 838.4 782.4 93.0 80.4 67.0 55.9 54.7 53.0 50.8 47.2 47.6 41.4 39.5 69.0 78.6 76.8 55.3 49.3 59.4 60.7 48.5 43.2 55.5 55.3 4.0 4.5 3.5 3.6 4.0 4.2 4.4 4.1 4.2 4.3 4.4 3.1 0.2 0.2 0.1 0.2 0.4 0.2 0.2 0.5 1.6 1.5 1 435.7 1 349.9 1 280.2 1 215.2 1 173.3 1144.3 1 098.1 1 041.5 985.9 941.2 883.1 1 165.9 1 124.2 1 079.4 1 033.5 984.9 946.2 911.4 871.3 834.6 798.3 753.5 163.5 140.1 125.7 115.8 113.0 114.2 110.7 99.5 86.8 80.8 72.4 45.2 37.5 32.0 28.7 37.3 43.9 41.8 37.3 31.7 27.7 31.5 61.1 48.1 43.1 37.2 38.1 40.0 34.2 33.4 32.8 34.4 25.7 1 435.7 1 349.9 1 280.2 1 215.2 1 173.3 1144.3 1 098.1 1 041.5 985.9 941.2 883.1
33 APPENDIX 3 Revenue Account Supplementary Information
FOR THE YEAR ENDED 30TH JUNE, 1976
RE-STATEMENT OF REVENUE ACCOUNT AS ELECTRICITY BUSINESS A WITH SUBSIDIARY COAL AND BRIQUETTE ACTIVITIES
Last Year $ $ $ $ 000 000 000 000
INCOME FROM SALES OF ELECTRICITY 386 465 336 317
EXPENDITURE GENERATION TRANSMISSION AND DISTRIBUTION
Brown coal and briquettes (total expenditure, incl. capital charges and overheads, less income from sales) 46 583 46 583 39 613
Purchased fuel 1 273 1 273 1 060
Purchased electricity 20 653 20 653 18 632
Operation and maintenance 53856 58 315 112 171 92130
Interest (direct, incl. loan flotation expense) 33 493 42 112 75 605 61 164
Depreciation (direct) 21 865 28 652 50 517 46 387
Administration, sales promotion and general services expense 15 753 41 828 57 581 52 509 193 476 170 907 Balance of Yallourn Resettlement expenditure previously capitalised 582 - Miscellaneous expenditure, net after deduction of income ($244 205) 1 832 1 151
Provision for accruing long service leave and retiring allowances 3 300 9000 Provision for statutory transfer to Consolidated Fund of Victoria 16 171 14 167 386 268 335 813
BALANCE OF INCOME 197 504
34 APPENDIX 3 CONTINUED
B CAPITAL CHARGES
Last Year $ $ $ 000 000 000 INTEREST (Including loan flotation expense) INTEREST On capital liabilities 78572 71 216 On advances for capital works including superannuation fund and municipalities 9836 8 844 On current liabilities 55 48 88463 80108 Deduct: Interest earned on investments 8 712 10 283 --- 79 751 69825 LOAN FLOTATION EXPENSE 374 487 80 125 70 312 Allocated to- REVENUE ACCOUNT Generation, transmission and distribution 75 613 61 170 Coal production 4 512 3668 Service facilities - 4 110 80,125 68 948 FIXED ASSETS Component of charges for services - 1 364 80125 70 312
DEPRECIATION
Depreciation in accordance with pre-assessed asset lives (adjusted when necessary) has been allocated to- REVENUE ACCOUNT Generation, transmission and distribution 50 517 45 753 Coal production 5 223 5820 Service facilities 4176 3 622 59 916 55195 FIXED ASSETS
Component of charges for services 1,702 1 500 *61 618 56695
Includes $0.681 M amortisation of development of Open Cuts.
35 APPENDIX 3 CONTINUED
ADMINISTRATION, SALES PROMOTION c AND GENERAL SERVICES
Last Year $ $ 000 000 This overhead includes the cost of customers' accounting and service; marketing; employees' training, education and safety; medical, recreational and bus services; townships and housing, hostels, bush fire prevention and other Latrobe Valley and Kiewa area services. The total cost has been allocated to-
REVENUE ACCOUNT 62359 54 235 FIXED ASSETS 1 461 2356 63820 56 591
D MISCELLANEOUS EXPENDITURE
Last Year $ $ 000 000 Electrical inspection and regulation for State of Victoria 901 813 Expenditure incidental to the abandonment of tramways at Ballarat and Bendigo 901 244
Other expenditure and income 8 72 1 810 1 129
36 APPENDIX 4 Balance Sheet Supplementary Information AS AT 30TH JUNE. 1976
A MATERIALS AND FUEL
Last Year $ $ 000 000 Construction and maintenance stocks 17 623 13 137 Briquettes and fuel oil 1 061 1 125 Electrical and fuel appliances for sale 1 521 2 738 Manufactures in progress 605 369 20 810 17 369
B INVESTMENTS
INVESTMENTS AT 30TH JUNE, 1976, COMPRISE: COSTs 000
Government securities- Commonwealth-market value $12.2M. face value $13.0M 12 975 Semi-Government-market value $24.4M, face value $28.0M 28 043 Other securities (short term money market, etc.) 11 716 Bank deposits 16144 Shares in Australian Char Pty. Ltd. 105 68 983
THEY REPRESENT INVESTMENT OF: $ 000 Loan sinking fund 25 009 Contractors' and customers' deposits 144 Reserves, provisions and short term funds 43830 68983
37 APPENDIX 4 CONTINUED
FIXED ASSETS NEW c EXPENDITURE TOTAl AT 1975/76 30/6/76
$ $ 000 000
COAL PRODUCTION SYSTEM 8 978 102 297
BRIQUETTE PRODUCTION 11 31 581
BRIQUETTE STORAGE 229 2183
THERMAL POWER PRODUCTION Hazelwood 2397 234 656 Yallourn W 27 375 156 074 Yallourn 793 111 084 Morwell 4 40 806 Newport 17 990 77 704 Richmond 7 089 Red Cliffs 1
HYDRO POWER PRODUCTION Kiewa 209 68 256 Eildon and Mountain Streams 903 11 937
TRANSMISSION SYSTEM 13 724 362 384
DISTRIBUTION SYSTEM Metropolitan ES Region 8 796 122 360 Provincial and Country ES Regions 40941 400 780
GENERAL Offices, Stores, Workshops, etc. 5 959 69 614 Plant and Equipment 3 241 19 980 Accommodation, Townships, Hostels, etc. 129 7 480 Miscellaneous Services (roads, railways, sewerage, electricity, phones, fire services, etc.) 4224 33 971
TOTAL COST OF FIXED ASSETS 135 903 1 860 237 Deduct: Provision for Depreciation 609 861
DEPRECIATED COST OF FIXED ASSETS 135 903 1 250 376 Add: Development of Open Cuts- Balance of Cost 2 949 16 201
TOTAL 138 852 1 266 577 $ The cumulative depreciation provision movements were: 000 Balance at 30th June, 1975 554 346 Add: Provision for year to 30th June, 1976 60 937 615 283 Deduct: Retirements and adjustments during year 5 422 Balance at 30th June, 1976 609 861
38 APPENDIX 4 CONTINUED
DEFERRED LIABILITIES SUPER- CUSTOMERS ANNUATION AND OTHERS D FUND
$ $ $ 000 000 000
ADVANCES FOR CAPITAL WORKS Balance at 30th June, 1975 49 922 58 014 107 936 Add: Received during year ended 30th June, 1976 (including assessed exchange variation) 7659 21 562 29 221 57 581 79 576 137157 Interest credited during year ended 30/6/76 2 869 2 869 57 581 82 445 140 026 Deduct: Repayments during year 2 000 9 782 11 782 BALANCE AT 30TH JUNE, 1976 55 581 72 663 128 244
E GENERAL RESERVE
$ 000
Balance at 30th June, 1975 18 257 Add.· Contributions by the Commonwealth Government, etc., to the repayment of Victorian Government Advances less charges in connection with the repayments levied by the National Debt Sinking Fund 686 Balance of Income transferred from Revenue Account for year ended 30th June, 1976, and used for capital works 197 883
BALANCE AT 30TH JUNE, 1976 19 140
39 APPENDIX 4 CONTINUED
F CAPITAL LIABILITIES $ 000
INSCRIBED STOCK AND DEBENTURES Balance at 30th June, 1975 831 211 Issues during year ended 30th June, 1976 75 853 907 064 Deduct: Redeemed or repaid during the year *41 060 BALANCE AT 30TH JUNE, 1976 866 004 *Includes $34.993M in respect of maturing public and private loans (of which $11.431 M was converted) and $0.122M maturing area loans. SINKING FUND 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 1 1976, the Commission's stock and debenture liability, in years of maturity, is: $ $ $ $ 000 000 000 000
The sinking fund for redemption of Commission Stock and Debentures stands as follows: Balance at 30th June, 1975 45 336 Add: Sinking Fund requirements for the year ended 30th June, 1976 9 778 55114 Deduct: Amount attributable to loans which matured during the year 3 647 BALANCE AT 30TH JUNE, 1976 51 467 At 30th June, 1976 this fund consisted of the following: Investments at face value 25 009 Loans repurchased and repaid prior to maturity 25 756 Moneys temporarily employed in the business 702 51 467
VICTORIAN GOVERNMENT ADVANCES
Balance at 30th June, 1975 293 000 Advances during year ended 30th June, 1976 New Loans 10,500 Loan Flotation Expense-Renewal Loans 22 10,522 303 522 Deduct: Repayments during the year 3 631 299 891 Victorian Government Advances are long term borrowings repayable in full by annual instalments during the currency of the advances. Sinking Fund requirements in respect of both Inscribed Stock and Debentures and Victorian Government Advances are met from Depreciation moneys. The remainder, by far the larger part of these moneys, is invested in fixed assets. G CONTRACT WORKS COMMITMENTS
Outstanding contract accounts, are estimated at $337M (1975 $264M).
40 APPENDIX 5 Electricity Customer Statistics*
A AGGREGATES FOR ALL REGIONS
NUMBER OF CUSTOMERS (000) kWh SOLD PER CUSTOMER (AVERAGEl
···- YEAR ENDED 30TH JUNE ESTIMATED DOMESTIC INDUSTRIAL COM- TOTAL INCOME GWh DOMESTIC INDUSTRIAl COM- ALL POPULATION MERCIAL (all classes (excl. SALES MERCIAL CUSTOMERS OF AREA except Bulk Bulk (excl. (excl. Bulk OF SUPPLY Supplies) Supplies) Bulk Supplies) (000) $M Supplies)
1948 1 300 300.7 14.8 39.5 355.3 10.2 1 005 1 127 32 880 3 102 2 891 1949 1 353 315.2 16.2 40.5 372.1 12.6 1 146 1 333 33 039 3 373 3 151 1950 1 414 331.5 17,5 <1 .8 391.0 14.4 1 252 1 521 32 352 3 533 3 281 1951 1 496 353.2 19.2 43.1 415.7 17.9 1 436 1 553 32 226 3 791 3 565 1952 1 574 377.0 21.3 44.5 443.0 23.4 1 556 1 495 29 145 3 736 3 627 1953 1 651 399.2 23.2 46.3 469.0 29.8 1 677 1 579 27 621 3 942 3 675 1954 1 753 426.5 25.9 49.4 502.0 34.3 1 947 1 739 29 761 4 285 4 001 1955 1 841 451.2 28.2 52.6 532.3 38.1 2 206 1 889 30 982 4 614 4 274 1956 1 949 475.2 30,5 55,9 561.9 42.9 2 506 2 098 32 009 4 966 4 583 1957 1 977 498.5 33.3 58.8 590.9 51.6 2 711 2 235 31 044 5 173 4 700 1958 2 044 522.1 36.1 61.5 619.9 56.3 2 927 2 31105 5 334 4 839 1959 2 099 546.9 38.5 64.0 649,7 64.2 3 166 2 31 055 5 648 4 987 1960 2 177 571.9 40.9 66.9 679,9 70,6 3 437 2 584 32 415 5 949 5 168
1961 2 195 598.3 44,5 69.4 712.4 76.6 3 738 2 741 ~ 32 105 6 500 5 364 1962 2 245 623.4 47.4 72.1 743.2 79.2 3 874 2 699 31 279 6 644 5 323 1 963 2 301 649,2 50,8 74,7 775,0 88,8 4 431 2 881 35 570 7 145 5 830 1964 2 358 673,1 54.2 76,6 804.3 99,0 5 201 3 049 43 449 7 648 6 590 1965 2 421 704.2 58.4 792 842.1 110,6 5 867 3 214 47 815 8 144 7 120 1966 2 469 732.3 62.4 81.4 876,3 120,1 6 179 3 293 46 392 8 694 7 186 1967 2 518 760.8 66.6 83.4 911.0 129.2 6 646 3 433 46 763 9 297 7 441 1968 2 574 788.4 70,3 85.4 944.4 140.7 7 041 3 474 46 905 9 833 7 583 1969 2 640 820.2 73.3 87,8 981.5 155,7 7 424 3 750 44 422 10 797 7 714 -:978 2 688 849.0 75.6 89.6 1 014.6 164.9 7 965 3 850 46 336 11 276 7 978 1971 2 737 876.6 77.3 91.0 1 045,3 172.2 8 505 3 962 48 138 12 282 8 258 1972 2 790 904.2 79.7 92.8 1 077.0 178.9 8 806 4176 45771 13 122 8 299
1973 2 831 84.0 ~~ 6 1 113.1 191.2 9 540 4 255 49 139 8 1974 2 873 ~~~.~ 87.2 I 146.2 2260 10 271 4 472 49 981 1314 ~~~ 9 1975 2 912 82.2 1 159.5 269.4 11 011 4 972 51 651 16 9 1976 2 930 1 b~~-~ 833 1 187.2 309.3 11 565 5 065 54 375 17 696 9 861 --
B INDIVIDUAL REGIONS
NUMBER OF CUSTOMERS (000! kWh SOLD PER CUSTOMER (AVERAGE)
YEAR ENDED 30TH JUNE 1976 ESTIMATED DOMESTIC INDUSTRIAL COM- TOTAL INCOME GWh DOMESTIC INDUSTRIAL COM All POPULATION MERCIAL (all classes (excl. SALES MERCIAL CUSTOMERS OF AREA except Bulk Bulk (excl. (excl. Bulk OF SUPPLY Supplies) Supplies) Bulk Supplies) (000) $M Supplies)
Me!ropolitan 1 228 410.6 10.8 32,1 453.6 128.3 4 649 4 715 166 565 23 527 10 387 Barwon 152 54.0 2.3 4.9 61.3 22.2 1 256 4 412 409 940 16 676 20 860 Eastern Metropolitan 708 255.3 13,1 17.2 285.7 72.9 2 706 5 622 68 822 21 464 9 694 Gippsland 191 65.7 13.0 8.7 87.5 20.4 724 4 997 21 222 11 889 8 329 Mallee 40 13.7 3.1 2.0 18,8 4,5 147 5 561 13 491 15 346 7 955 Mid-Western 34,2 4.0 4.4 42.5 10.0 342 4 805 25 456 12 851 7 603 North-~ ~ 64.5 13.9 9.9 88.3 22 2 763 5 611 20 066 14 840 8 965 Nort~ern and M 146 50.8 8.7 7.7 67.2 13.2 433 4 920 12 067 10 501 6 521 South-Western 123 41.9 = 103 6.0 58 2 11.6 396 5 361 11 434 8 847 6 842 Wimmera 50 16.9 4.1 3,1 24.1 4.0 129 5 362 3 274 7 982 5 387 TOTAL 2 930 1 007 6 83.3 96.0 1 187.2 309.3 11 565 5 065 54 375 17 696 9 861 ·These IIQU'es do not rnclude allowances for unread meters.
41 APPENDIX 6 Electricity Sales andlncomet
SALES- GWh INCOME
PER kWh SOlD (CENTS) YEAR Domestic Corn- Industrial Traction Public Bulk TOTAl TOTAl ENDED rnercial Lighting Supplies $M All Domestic Industrial Cam- Customers 30TH JUNE mercial (excl. bulk supplies)
1948 331 121 467 67 18 507 1 511 13 1.262 0.725 1.569 1.013 1949 411 135 514 68 18 563 1 709 16 1286 0.813 1 728 1 098 1950 492 145 546 55 14 614 1 866 19 1.286 0.875 1.779 1.151 1951 531 161 59i 136 18 656 2 093 23 1.401 0.949 1.817 1.245 1952 545 163 591 236 21 680 2 236 30 1.663 1.163 2.140 1.504
1953 613 179 615 248 21 730 2 406 38 1.960 1.413 2.561 1.774 1954 719 205 734 265 23 845 2 791 44 1.939 1.403 2.591 1.762 1955 827 234 840 280 24 956 3161 49 1.843 1.398 2.590 1.728 1956 971 269 942 298 26 1 059 3 565 57 1.846 1.460 2.699 1.753 1957 1 089 297 992 304 28 1133 3 843 67 1.915 1.690 3.123 1.903
1958 1 189 320 1 083 305 30 1 234 4 161 74 1.898 1.713 3.218 1 923 1959 1 323 355 1 162 294 34 1 309 4477 64 1.975 1.826 3313 2.026 1960 1 446 390 1 288 277 36 1 438 4 875 93 1.998 1.839 3.321 2.053 1961 1 605 444 1 374 276 39 1 515 5 253 100 1.978 1.833 3.279 2.050 1962 1 649 470 1 439 274 42 1 538 5 412 103 1.978 1.811 3.253 2.044
1963 1 835 526 1 754 272 43 1 706 6 136 115 1.968 1.730 3.235 2.004 1964 2 014 579 2 282 280 46 i 799 7 000 127 :.951 1559 3.204 1.903 1965 2 215 636 2 699 270 47 1 969 7 836 143 1.962 1.516 3.241 1.886 1966 2 367 699 2 803 262 48 2 043 8 222 156 2.016 1.566 3.254 1.944 1967 2 561 766 3 017 253 50 2190 8 837 167 2.002 1.575 3.215 1.944
1968 2 692 830 3 222 244 52 2 301 9 341 182 2.035 1.633 3.290 1.999 1969 3 014 935 3 189 231 55 2 470 9 894 201 2.091 1.744 3,317 2.097 1970 3 214 999 3 461 232 59 2 598 10 563 211 2 075 1.704 3.300 2.070 1971 3 418 1 110 3 685 229 63 2 743 11 248 220 2.046 1.628 3.236 2.024 1972 3 719 1206 3 586 228 67 2 891 11 697 229 2.012 1.662 3.152 2.032
1973 3 911 1 298 4 72 2 952 12 492 241 1 997 1.637 3.118 2.005 1974 4 245 1 418 4 77 3 087 13 358 284 2.207 1. 762 3.431 2.201 1975 4 815 1 561 4 81 3 219 14 230 332 2.419 1.962 3.797 2.447 1976 5 039 1 684 4 87 3 342 14 907 382 2.624 2.131 4.184 2.674
tThese figures do not include allowances for unread meters.
APPENDIX 7 Generation and Disposition (GWh)
YEAR ENDED 30TH JUNE
GENERATION 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 (Including Purchases) Generated 17 141 15 585 14 637 13 103 13 000 12 545 12 630 11 942 10 963 10 296 9 339 Used in power stations 1 142 1 060 1 030 955 931 882 905 868 816 783 743 Sent out 15 999 14 525 13 607 12 148 12 069 11 663 11 725 11 074 10 147 9 513 8 596 Purchased from other bodies 1 759 2 091 1 939 2 175 1 640 1 541 825 925 972 913 942
TOTAL 17 758 16 616 15 546 14 323 13 709 13 204 12 11 999 11 119 10 426 9 538
DISPOSITION fransmission losses 1 018 940 895 810 761 738 835 804 766 696 635 Works usage 188 203 199 191 186 187 187 179 182 188 184 Oistrtbt...tion losses and unread meters 751 635 599 538 480 492 458 462 455 398 364 Bulk supplies 3 342 3 219 3 087 2 952 2 891 2 743 2 598 2 470 2 301 2190 2 043 Retail sales 11 565 11 011 10 271 9 540 8 806 8 505 7 965 7 424 7 040 6 647 6 179 Supplied to other bodies 894 608 495 292 585 539 507 660 375 307 133
TOTAL 17 758 16 616 15 546 14 323 13 709 13 204 12 550 11 999 11 119 10 9 538
42 APPENDIX 8 State Generating System
A TOTAL INSTALLED PLANT CAPACITY
MW
Manufacturers' maximum continuous rating of plant installed at 30/6/76 3 661
Add-Available from Hume Power Station 25
.. Snowy Scheme 1 059
TOTAL 4 745
GENERATORS INSTALLED AT POWER STATIONS B AT 30TH JUNE, 1976
POWER STATION SET MAKE MAXIMUM YEAR I NSTALLEO NO. CONTINUOUS RATING
STEAM MW HAZEL WOOD 1 & 2 Associated Electrical Industries 200 1964, 1965 3 to 8 Parsons 200 1966, 1967, 1968, 1969, 1970, 1971 ~- 1 600
YALLOURN W 1&2 Toshiba 350 1973, 1975 700
YALLOURN 7 to 10 Metropolitan Vickers 25 1932. 1935, 1938 (2) C1 &C2 Parsons 50 1 1954 C3 Parsons 6 1 D1 & D2 Parsons 50 1958, 1957 E1 & E2 Associated Electrical Industries 120 1962, 1961 •. 546
NEWPORT A2 & A4 Parsons (25 cycle) 30 1943, 1951 4 Parsons 30 1945 5 to 7 Parsons 30 1946, 1948, 1950 8 Brush Ljungstrom 18 1944 198
MORWELL 1 Metropolitan Vickers 20 1958 2 to 4 Metropolitan Vickers 30 1958, 1959 (2) 5 Stai-Laval 60 1962 170
RICHMOND 2 Brown Boveri 38 1952
SPENCER ST. 9 & 10 Parsons 15 1949, 1954 (Melbourne City Council) 11 & 12 Parsons 30 1953, 1959
~ 90
43 APPENDIX 8 CONTINUED
GENERATORS INSTALLED AT POWER STATIONS B AT 30TH JUNE, 1976
POWER STATION SET MAKE MAXIMUM YEAR INSTALLED NO CONTINUOUS RATING
HYDRO MW McKAY CREEK {KIEWA) 1 to 6 Metropolitan Vickers 16 1960 (6) WEST KIEWA 1 to 4 Metropolitan Vickers 15.4 1956, 1955 (3) (Boving Turbine) CLOVER (KIEWA) 1 & 2 English Electric 13 1944. 1945
183.6
EILDON 1 & 2 British Thomson-Houston 60 1957, 1956 (Boving Turbine)
RUB ICON 1 & 2 Westinghouse 4.6 1928 (2) (Boving Turbine)
LOWER RUBICON 1 Westing house 2.7 1928 (Boving Turbine)
ROYSTON 1 Westinghouse 0.8 1928 (Boving Turbine)
RUBICON FALLS 1 A S.EA. {Boving Turbine) 0.3 1926 -·--- 132.9
CAIRN CURRAN 1 Boving 2 1960
OVERALL TOTAL 660.5
44 APPENDIX 8 CONTINUED
BOILERS INSTALLED AT POWER STATIONS c AT 30TH JUNE, 1976
POWER STATION BOILER MAKE Rated Working Total Steam YEAR INSTALLED NO. Evaporative Pressure of Temperature Capacity of each Boiler including each Boiler kPa (gauge) Superheat kg/s oc.
HAZELWOOD 1 to 8 Babcock & Wilcox 208 11 032 568 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
YALLOURN W 1 &2 John Thompson 305 12 800 538 1974, 1975
YALLOURN C1 to C6 John Thompson 25 4 447 449 1955 (2), 1956, 1957, 1954 (2)
01 to 06 John Thompson 25 4 447 449 1958 (2), 1959 (2). 1958 (2)
E1 & E2 Babcock & Wilcox 120 11 032 571 1962. 1961
NEWPORT AIM to A4M International Combustn. 24 2 758 416 1952, 1951, 1943 (2) 11 to 18 John Thompson 20 4 275 438 1945 (2). 1947, 1948. 1950 (3), 1949
MORWELL 1 to 8 Mitchell Engineering 30 8 963 500 1960 (2), 1961 (2), 1959 (2)' 1958 (2)
RICHMOND· Velox Nos. Brown Boveri 21 4 482 454 1953, 1952 1 & 2
SPENCER STREET 81 & 82 John Thompson 19 1 896 413 1954, 1955 (Melbourne City Council) C1 John Thompson 38 4 275 438 1953 C2 John Thompson 34 4 137 441 1959
45 APPENDIX 9 Generation of Electricity
STATE ELECTRICITY COMMISSION OF VICTORIA
INTERCONNECTED SYSTEM
SPENCER STREET STATION YALLOURN* YALLOURN W MORWELL HAZEL WOOD NEWPORT RICHMOND (Melbourne City GEELONG BAlLARATt Council)
YEAR M.D. M.C ENDED GWh M.D. GWh M.D. GWh M.D. GWh M.D. GWh M.D. M.D. GWh M.D. GWh MW GWh M\\ ~Oth JUNE MW MW MW MW MW sum- SUIT MW MW mated matt
Operation Generation Operation Operation Operation "A" Station Station "A" Station "A" Station commenced durmg commenced commenced commenced acquired and operated as acquired acquired 15.6.24 commissioning 7.12.58 1.10.64 12.10.23 reconditioned part of State 1.9.30 and 1. 7.34 and tests commenced Newport "A" Restarted system from retired retired June 1973. acquired 21.1.51 6.5.29 1.1 .41 1. 7.66 18.12.61 Commercial and retired "B" Station "B" Station operation from 27.11.68 operation operation 20.3.74 commenced commenced 12.1.54 and 31.7 53 and retired 3L12.71 retired 31.12.7
1926 144 38 46 16 1927 240 61 46 20 1928 321 69 "•• 54 21 1929 306 64 49 20 4 15 1930 312 63 51 21 22 16
1931 258 63 38 20 27 16 20 6 1932 334 82 10 19 26 15 27 7 1933 401 91 3 14 22 15 27 7 1934 445 97 8 19 22 15 29 7 1935 323 96 54 18 56 16 31 7 13 4
1936 505 110 17 19 30 15 34 8 13 4 1937 549 124 27 19 25 15 .... 32 8 13 4 1938 676 143 .,,, 27 19 24 15 34 9 10 4 1939 717 138 ...... 24 20 27 15 38 9 9 3 1940 797 170 39 35 16 15 31 8 12 3
1941 961 173 45 45 21 15 16 26 22 10 14 4 1942 1 048 189 45 55 35 16 44 35 31 11 15 4 1943 1 131 188 46 63 39 16 55 33 34 12 15 6 1944 1 108 190 ... 83 72 45 16 64 41 45 12 21 5 1945 1155 188 92 90 40 16 59 35 39 11 19 5
1946 1 163 196 137 94 33 16 55 34 31 12 16 5 1947 1 207 190 182 88 23 16 51 30 27 12 18 5 1948 1 256 199 299 134 29 15 66 35 33 12 19 6 1949 1 323 196 514 138 26 16 77 35 33 12 19 6 1950 1 320 190 718 175 26 16 105 42 29 12 16 6
1951 1 271 191 990 243 19 15 106 39 31 11 17 6 1952 1 316 199 1 085 249 29 15 94 39 46 12 17 6 1953 1 359 206 1 205 305 72 52 94 35 46 12 23 6 1954 1 427 245 1 323 304 202 52 212 73 104 47 54 30 1955 1 702 264 ...... 1 250 303 175 52 307 83 182 47 99 32
1956 1 921 283 1 279 298 200 53 269 94 179 48 77 32 1957 2 118 316 1 409 316 206 52 273 95 200 47 58 32 1958 2 186 338 1 518 303 212 53 260 94 212 48 61 31 1959 2 777 411 158 63 1 273 301 147 54 287 120 150 49 52 31 1960 2 952 414 497 100 1182 287 180 54 353 125 149 48 58 26
1961 2 952 519 701 115 1 326 278 75 53 242 118 137 48 69 26 1962 3 646 630 810 127 1 119 268 21 45 155 90 75 35 67 22 1963 4 141 641 1 011 182 902 265 23 39 180 90 42 32 5 21 1964 4 296 645 1 158 178 1 052 273 71 40 372 101 53 37 11 26 1965 4 430 661 1056 175 736 410 857 273 43 40 255 101 42 37 14 26
1966 4 423 630 1 055 172 2 281 426 752 258 50 39 225 101 30 35 7 26 1967 4 242 605 1 103 180 3 438 796 703 276 54 39 153 101 19 36 8 25 1968 3 779 629 1 233 183 4 687 1 018 575 239 47 39 57 90 35 31 8 21 1969 3 896 627 1 175 183 5 838 1 242 325 251 18 39 55 90 9 39 3 25 1970 3116 573 1167 182 7 410 1 463 232 190 30 39 59 90 4 31 3 20
1971 2 860 512 1109 183 7 1 455 202 194 36 39 63 60 ... 12 1 6 1972 2 685 521 1 130 183 8 1 358 279 187 27 39 55 60 .... 1973 2 659 516 5 146 1 135 185 8 1 492 140 178 5 39 15 62 1974 2 480 507 1 475 359 1 197 185 8 1 295 182 168 7 37 13 60 1975 2 545 493 2 409 702 1 264 180 8 238 1 500 137 125 35 1 60 ......
1976 2 361 474 3 539 714 1 165 175 9 132 1 390 134 162 ... 26 1 60
• Including Briquette Factory, operation commenced February 1925, retired 14/12171. t Including Bendigo, acquired 1/7/34, closed down 31/12/37. 46 APPENDIX 9 CONTINUED
STATE ELECTRICITY COMMISSION OF VICTORIA
INTERCONNECTED SYSTEM OTHER- • Mi Idura, Red Cliffs, Hamilton, SHEPPARTON, Horsham & WARRNAMBOOL, Murtoa Stations HAMILTON, HORSHAM, TOTAL • Purchased OTHER MILDURA, RED CLIFFS EILDON-RUBICON, KIEWA PURCHASED FROM INTERCONNECTED from other TOTAL UNDER- TOTAL AND ARARAT CAIRN CURRAN OTHER BODIESt SYSTEM oodies~ TAKINGS
M.D. M.D. M.D. MW MW MW YEAR GWh GWh M.D. GWh M.D. GWh GWh M.D.MW GWh GWh GWh ENDED sum· sum· sum- GWh MW MW coinci· 30th mated mated dent mated JUNE
Operation Eildon-Rubrcon Operation Hamilton commenced operation commenced acquired Shepparton commenced 1.9.44 1.7 .46 7.3.51 14.3.28 Mildura Warrnambool Cairn Curran acquired 74.52 operation 1.10.53 Hamilton and commenced Red Clills Hors ham 11.11.60 commenced connected to operatron State System 16.1.54 from 3.2.55 Horsham and 1.3 58 acquired respectively 190 50 1.6.55 190 333 523 1926 Horsham ceased 286 76 Murtoa 286 302 588 1927 operation 5 12 380 88 acquired 380 253 633 1928 31.10.58 and 65 16 .... 424 96 1 356 424 248 672 1929 Hamilton 78 19 463 103 ceased 463 245 708 1930 3 9 59 operation Mildura and 121 23 464 109 2.3.58 464 211 675 1931 Red Cliffs 122 23 519 117 519 194 713 1932 connected to 111 23 564 123 564 198 762 1933 State System 101 23 605 128 605 206 81' 1934 from 16.11.62 155 25 632 142 632 235 867 1935 Mildura retired 7.2.63 135 25 734 159 734 229 963 1936 Red Cliffs A 142 25 788 173 788 234 1 022 1937 retired 8.3.63 86 25 857 182 857 240 1 097 1938 Shepparton 103 24 .... .,., 918 198 918 240 1 158 1939 m tired 150 25 1 045 219 1 045 228 1 273 1940 11.5.64 Warrnambool 98 21 1 177 262 .... 1 177 222 1 399 1941 retired 133 26 1 351 298 1 351 202 1 553 1942 30.9.67 156 26 1 476 319 1 476 188 1 664 1943 Ararat 130 26 1 496 328 1 496 193 1 689 1944 acquired 101 26 19 24 1 524 352 1 524 207 1 731 1945 30.6.69 retired 134 27 51 26 1 620 377 1 620 203 1 823 1946 29.9.69 145 26 61 27 1 714 365 3 1 1 717 209 1 926 1947 Redcliffs B & C 162 26 68 26 1 932 450 4 1 1 936 252 2 188 1948 retired 2.4.75 139 26 44 28 2 175 437 5 1 2 180 255 2 435 1949 129 26 47 29 2390 504 5 1 2 395 261 2 656 1950
1 2 146 26 48 28 2 629 497 6 1 2 635 158 2 793 1951 5 4 161 26 66 28 2 819 533 6 2 2 825 59 2 884 1952 12 12 168 26 67 28 3 046 602 7 2 3 053 65 3 118 1953 30 15 93 27 62 28 3 507 702 29 13 3 536 50 3 586 1954 34 17 141 31 78 61 3 968 836 36 14 4 004 45 4 049 1955
32 18 171 31 288 90 4 416 897 46 15 4 462 44 4 506 1956 35 18 213 134 228 90 6 12 4 746 943 50 16 4 796 43 4 839 1957 45 19 334 134 175 90 94 26 5 097 1 067 54 17 5151 44 5 195 1958 37 19 264 142 238 90 155 27 5 538 1 137 48 16 5 586 44 5 630 1959 24 17 261 135 194 120 218 123 6 068 1 313 51 14 6 119 45 6164 1960
17 14 344 141 341 184 349 132 6 553 1 320 54 17 6 607 44 6 651 1961 4 14 279 135 258 196 398 241 6 832 1 392 57 17 6 889 40 6 929 1962 9 32 223 138 323 208 841 247 7 700 1 670 23 16 7 723 41 7 764 1963 8 8 247 141 296 212 1 101 254 8 665 1 739 2 8 667 37 8 704 1964 6 10 416 141 398 210 1 419 233 9 672 1 963 3 9 675 32 9 707 1965
3 10 269 140 244 208 940 308 10 279 2 013 3 '"" 10 282 31 10 313 1966 7 19 243 140 327 208 911 454 11 208 2 171 1 11 209 23 11 232 1967 1 15 338 134 203 208 971 500 11 934 2 332 1 11 935 21 11 956 1963 1 7 226 140 397 197 924 526 12 867 2 429 1 12 868 14 12 882 1969 5 19 265 142 338 209 824 593 13 453 2 536 1 13 454 1 13 455 1970
2 14 403 143 445 208 1 539 808 14 084 2 1 14 085 1 14 086 1971 1 6 341 143 347 205 1 639 722 14 639 2 1 14 640 1 14 641 1972 1 10 306 140 286 183 2 174 917 15 276 2 1 15 277 1 15 278 1973 .... 5 321 143 452 205 1 936 1 031 16 573 2 2 16 575 1 16 576 1974 ,.,. 5 539 135 452 201 2 068 1108 lT 673 3 182 3 17 676 1 17 677 1975
...... 415 143 394 185 1 755 1 199 18 896 3 354 4 18 900 1 18 901 1976
;GWh: Draw on Snowy entitlement. supplies from Hume. interchange from New South Wales and purchases from Alcoa of Australia Ud, (Anglesea). Phosphate Company of Australia (Geelong and Portland) and Radio Australia (Congt.pna). M.D.: Summation of Victoria's rraximum demand on the Snowy Mountains Scheme and tne Hume Power Stat,on. ~Tumut River County Council and Electricity Trust ol South Australia 47 APPENDIX 10 Load Factors and Fuel Used
A LOAD FACTORS AT POWER STATIONS(%) (Generated Basis)
INTERCONNECTED SYSTEM
YALLOURN (including SPENCER STREET Briquette (Melbourne YEAR ENDED Factory YALLOURN W MORWELL HAZEL WOOD NEWPORT RICHMOND City GEELONG 30TH JUNE to 14/12/71J Council)
1946 68.1 16.7 24.2 18.4 29.9 1951 758 46.6 14.8 31.2 30.6 1956 770 488 43.4 32.6 42.6 1961 78.4 69.6 54.4 16.1 23.4 32.8 1966 80.2 70.0 61.1 33.2 14.5 25.5 9.8 1971 63.8 69.2 58.2 11.9 10.5 12.8 0.4 1972 58.7 70.3 68 2 17.0 8.0 10.5 1973 58.8 70.0 65.4 9.0 1.5 2.8 1974 55.8 46.9 73.9 75.0 12.3 2.2 2.4 1975 58.9 39.2 80.1 62.7 12.5 0.2 1976 56.7 56.4 75.8 74.8 9.4 0.1 0.2
B FUEL USED AT POWER STATIONS (KILOTONNES) YEAR ENDED 30th JUNE
STATION TYPE OF FUEL 1976 1975 1974 1973
VALLOURN (inc. Briquette Factoryt) BROWN COAL 4 440.2 5 086.7 4 707.0 5 092.7 BRIQUETTES 35.9 47.9 42.4 50.7 VALLOURNW BROWN COAL 5 560.3 3 889.5 2 289.1 6.1 OIL 23.4 18.3 23.8 MORWELL BROWN COAL 2 278.8 2 524.7 2 429.7 2 353.6 OIL 0.7 0.6 0.6 0.6 HAZELWOOD BROWN COAL 13.047.7 11 590.5 12 317.6 12 030.2 BRIQUETTES 29.4 24.0 26.5 28.0 NEWPORT BRIQUETTES 96.5 100.2 125.1 102.4
BLACK COAL '" OIL 0.4 4.0 1.5 RICHMOND OIL 0.1 0.1 2.1 1.7 SPENCER STREET BRIQUETTES (Melbourne City Council) OIL 0.4 0.4 4.0 4.6
GEELONG "A" AND "B"i BRIQUETTES '" BALLARAT "B"" BRIQUETTES OIL .... WARRNAMBOOL§ OIL RED CLIFFS~ OIL 0.2 0.2 SUMMARY BROWN COAL 25 327.0 23 091.4 21 743.4 19 482.6 BRIQUETTES 161.8 172.1 194.0 181.1 BLACK COAL .... ---······ OIL 25.0 19.4 34.7 8.6 :j:"A" Station retired 1/7/66. ·Retired 31/12/71. tRet1red 14/12/71 :j:"B" Station retired 31 I 12/71. 1]'Retired 2/4/75. §Retired 30/9/67. Heat values-1976 (MJ/kg (gross)):-Brown Coal-8.7 (Yallourn), 10.4 (Morwell); Briquettes-22.1; Oil-43.7.
48 APPENDIX 10 CONTINUED
INTERCONNECTED SYSTEM
SHEPPARTON, OTHER WARRNAMBOOL, STATIONS- HAMILTON, MILDURA, HORSHAM, RED CLIFFS, MILDURA, Ell DON- TOTAL HAMILTON, BALLARAT RED CLIFFS RUB ICON, KIEWA HUME SNOWY INTERCONNECTED HORSHAM YEAR ENDED AND ARARAT CAIRN CURRAN SYSTEM AND MURTOA 30TH JUNE 34.1 59.8 22.6 48.3 1946 31.3 5.5 64.0 19.7 59.7 44.5 1951 27.9 20.7 62.5 36.5 55.6 36.5 1956 30.9 13.6 28.0 23.2 57.2 4.7 56.7 37.2 1961 3.0 3.6 22.0 13.4 27.4 27.8 58.3 1966 2.6 1.5 32.6 24.4 63.3 17.6 62.7 1971 1.4 27.2 19.3 59.9 19.3 61.1 1972 0.7 25.0 17.9 37.2 18.4 59.4 1973 1.1 256 25.2 78.4 17.2 63.3 1974 0.1 45.6 25.7 76.4 19.0 63.4 1975 33.1 24.3 74.6 15.2 64.2 1976
1972 1971 1970 1969 1968 1967 1966
5 239.6 5 636.3 6 311.0 8 383.4 8 628.1 9 590.2 9 9643 42.3 46.8 34.2 32.0 21.2 32.9 38.6
! ...
1-- 2 387.0 2 350.8 2 450.0 2 385.8 2 582.5 2 363.0 2 410.2 0.7 0.8 0.9 1.0 1.0 1.0 0.8 11103.5 9 724.3 9 741.5 7567.1 6 361.3 4 780.3 3 240.6 39.0 54.5 44.5 29.5 21.3 26.5 12.7 181.0 118.3 173.2 230.5 386.5 479.4 536.2 10.9 29.3 18.7 14.9 19.1 17.3 3.6 1.3 1.6 2 1 2.4 8.4 11.0 9.4 5.4 14.4 16.3 155 3.9 4.0 14.2 16.2 1 19.5 20.~- 17.7 16.8 45.1 62.6 2.9 6.5 23.8 13.7 21 3 0.5 1.2 2.4 6.1 6.8 6.0 0.4 ... 0.1 0.7 0.7 0.3 0.7 1.4 0.3 0.4 1.3 18 730.1 17 711.4 18 502.5 18 336.3 17 571.9 16 733.5 15 615.1 262.3 220.1 256.0 300.9 462.8 563.3 629.0 10.9 29.3 18.7 14.9 44.7 49.3 36.2 25.7 34.3 66.5 82.0
49 APPENDIX 11 Transmission and Distribution Systems
OVERHEAD LINES
INCREASE DURING YEAR ENDED 30/6/76 TOTAL AT 30/6/76 ----··· ···---···---··· ···-f- ROUTE CIRCUIT CABLE ROUTE CIRCUIT CABLE km km* km km km* km 500 kV HAZELWOOD to Keilor 397 397 4 764 330 kV DEDERANG to South Morang 450 450 2 700 330 kV KHA"..COBAN to Deaerang 228 228 1 368 220 kV BALLARAT to Bendigo 96 96 288 220 kV BALLARAT to Horsham 180 180 1 080 220 kV BALLARAT to Terang 115 115 692 220 kV BENDIGO to Kerang to Red Cliffs 350 350 2 100 220 kV BENDIGO to Sheooarton 117 117 350 220 kV BROOKL YN to Yarrav!lle 3 6 33 220 kV GEELO"..G to Ballarat 70 70 209 220 kV GEELONG to Terang 135 135 405 220 kV HAZEL WOOD Area 7 10 61 220 kV HAZELWOOO to Rowville 113 226 677 220 kV HORSHAM to Red Cliffs 277 277 1 662 220 kV KEILOR to Brooklvn 15 30 180 220 w KEILOR to Geelong 200 200 600 220 kV KElLOR to West Melbourne 12 24 146 220 kV KIEWA Area .... 19 19 56 220 kV KIEWA to Dederang to Shepparton 226 226 677 220 kV KIEWA to Eildon to Thomastown 237 474 1 468 220 kV MORWELL to Hazelwood 4 9 26 220 kV ROWVILLE to East Rowville 2 3 19 220 kV ROWVILLE to Ricnmond 26 53 315 220 kV ROWVILLE to Springvale to Heatherton 16 31 138 220 kV ROWVILLE to Malvern 15 30 89 220 kV SOUTH MORANG to Thomastown 8 16 95 220 kV TEMPLESTOWE to Ooncaster 6 12 35 220 kV TEMPLESTOWE to Kew 12 25 149 220 kV THOMASTOWN to Brunswick 10 20 60 220 kV THOMASTOWN to Keilor 34 68 201 220 kV THOMASTOWN to Ringwood to Rowville 39 77 232 220 kV THOMASTOWN to Templestowe to Rcwville 39 77 232 220 kV WEST MELBOURNE to Fishermen's Bend 3 6 18 220 kV YALLOURN to Hazelwood 16 32 96 220 kV YALLOURN to Rowville 212 424 1 273 220 kV YALLOURN to Yallourn West 2 4 11 66 kV EAST ROWVILLE to Frankston 40 79 238 66 kV K1EWA Area 8 8 23 66 kV MAIN METRO. Transmission Lines 33 38 133 66 kV ELECTRICITY SUPPLY Regions 288 288 867 4 416 4 946 15 221 33 ~V ELECTRICITY SUPPLY Regions 24 24 72 22 kV El LOON Area 6 12 36 22 kV KIEWA Area 13 13 38 22 kV MAIN METRO. Transmission Lines 16 19 57 22 kV ELECTRICITY SUPPLY Regions 815 815 2 061 43 696 43 696 109 863 12.7 kV (S.W.E R) ELECTRICITY SUPPLY Regions 85 85 85 26 494 26 494 26 494 11 kV ELECTRICITY SUPPLY Regions 14 - 14 -44 926 926 2 874 6.6 kV LATROBE VALLEY (Works) and Other 7 7 21 114 115 349 6.6 kV ELECTRICITY SUPPLY Regions 2 -2 6 338 338 892 LOW VOLTAGE 253 253 1 349 24 745 24 748 99 038 Supervisory 12 12 12 467 467 469 TOTAL 1 444 1 444 4 345 105 027 106 440 278 302
50 APPENDIX 11 CONTINUED
OVERHEAD LINES (continued)
····-- INCREASE DURING YEAR ENDED 30/6/76 TOTAL AT 30/6/76 ···-····---··· ROUTE CIRCUIT CABLE ROUTE CIRCUIT CABLE km km* km km km* km
SUMMARY 500 kV 397 397 4 764 330 kV 678 678 4 068 220 kV 2 616 3 442 13 673 66 kV 288 288 867 4 497 5 071 15 615 33 kV 24 24 72 22 kV 815 815 2 061 43 731 43 740 109 994 12.7 kV (SW.E.R.) 85 85 85 26 494 26 494 26 494 11 kV 14 14 -44 926 926 2 874 6.6 kV 5 5 15 452 453 1 241 Low Voltage 253 253 1 349 24 745 24 748 99 038 Supervisory 12 12 12 467 467 469 TOTAL 1 444 1 444 4 345 105 027 106 440 278 302
'CirCUit kilometres for Electricity Supply Regions 33 kV, 22 kV, 11 kV, 6.6 kV and Low Voltage approx;mately equate Ro"te kr1 and exclude OJblic lighti~g services.
UNDERGROUND LINES
INCREASE DURING YEAR ENDED 30/6/76 TOTAL AT 30/6/76
ROUTE km CABLE km ROUTE km CABLE km
66 kV 66 66 22 and 20 kV 37 38 454 471 11, 7.2, 6.6, 3.3 and 2.2 kV 9 5 767 780 Supervisory 10 10 939 939 Low voltage 123 224 702 872 TOTAL 179 9.77 2 928 3 128
····---···~·····---..
SUBSTATIONS
INCREASE DURING YEAR ENDED 30/6/76 TOTAL AT 30/6/76
NUMBER CAPACITY MVA NUMBER CAPACITY MVA
Auto-transformation stations 4 5 744 Terminal substations 26 8 117 Zone substations 4 155 173 7 409 Distribution substations 2 645 249 74 340 4 647 Latrobe Valley (Works) 12 2 169 46 TOTAL 2 661 406 74 712 25 96:i
51 APPENDIX 12 Bro-wn Coal and Briquette Production (KILOTONNES)
YALLOURN AND MORWELL OPEN CUTS YALLOURN NORTH
YEAR ENDED 30TH JUNE PRODUCTION DISTRIBUTION PRODUCTION (3) DISTRIBUTION
YALLOURN MORWELL POWER STATIONS BRIQUETTE POWER STNS. FACTORIES & WKS. Production Developmental commenced coal winning August 1924 commenced October 1955 1926 700 341 359 178 116 1927 874 446 428 313 262 1928 1 179 681 498 325 291 1929 1 687 1 149 538 42 17 1930 1 796 1143 653 44 18 1931 1 881 972 909 10 7 1932 2 605 1 296 1 309 Closed Sept. 1930 1933 2 609 1 378 1 231 1934 2 736 1 462 1 274 1935 (1) 1 765 927 838 (2) 257 257 1936 3 036 1 610 1 426 1937 3 149 1 716 1 433 1938 3 654 2 025 1 629 1939 3 701 2 129 1 572 1940 4 007 2 352 1655 1941 4 557 2 865 1 692 e·opened Sept. 194 1942 4 778 3 146 1 632 33 4 1943 5 058 3 398 1 660 40 1944 4 906 3 266 1 640 88 47 1945 5 333 3584 1 749 48 1 1946 5 536 3 582 1 954 50 1947 5 707 3 721 1 986 135 3 1948 6 091 3 824 2 267 201 3 1949 6 336 4 100 2 236 479 104 1950 6 507 4141 2 366 776 339 1951 6 154 4 033 2 121 702 384 1952 6 585 4 218 2 367 1 023 640 1953 6 493 4 272 2 221 1 201 738 1954 6 827 4 450 '2. 377 1 282 754 1955 7 489 4 923 2 566 1 413 808 1956 8 065 15 5 511 2 569 1 575 873 1957 8 341 56 5 940 2 457 1 620 853 1958 7 838 617 5 987 2 468 1 674 903 1959 9 866 338 7 707 2 497 1 481 743 1960 11 086 1030 8677 3 439 1345 654 1961 12 055 2 556 9129 5 482 854 365 1962 12 656 3 351 10 464 5 543 494 84 1963 13 100 3 936 11 443 5 593 485 102 1964 13 704 4 146 12 029 5 821 607 192 1965 14168 4 671 12 980 5 859 467 38 1966 13 987 6 983 15 173 5 797 435 1967 13 291 81316 16 336 5 571 429 1968 12 172 10 285 17 154 5 303 425 1969 12 080 10 280 17 928 4 432 466 1970 10267 12 485 18 211 4 541 403 1971 9 547 11 990 17 524 4 013 347 1972 8 787 13 491 18 646 3 632 316 1973 8 285 14 396 19 482 3 199 255 1974 10 105 14 736 21 743 3 098 307 1975 11 942 14105 23092 2955 273 1976 12 486 15 354 25 327 2 513 242
(1) Yallourn Open Cut flooded 1/12/34 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 31/5/35, whilst Yallourn Open Cut flooded. (3) YalloLrn North transferred from Mines Department 1/4/24 Yallourn North Extension commenced 9/7/56
--··~··------
52 APPENDIX 12 CONTINUED
OPEN CUTS BRIQUETTE FACTORIES
PRODUCTION (4) DISTRIBUTION YEAR ENDED DISTRIBUTION 30TH JUNE POWER STNS., GAS & FUEl CORP. INDUSTRIAL DOMESTIC GAS & FUEL CORP. ·~ WKS., ETCJ5J
62 88 24 64 1926 51 111 51 60 1927 34 124 52 72 1928 25 143 63 80 1929 26 164 105 59 1930 3 229 26 139 64 1931 327 71 171 85 1932 313 47 182 84 1933 329 49 193 87 1934 293 11 182 100 1935 363 85 183 95 1936 371 69 196 106 1937 423 96 224 103 1938 406 66 234 106 1939 435 70 286 79 1940 441 61 340 40 1941 29 420 98 309 13 1942 40 422 102 308 12 1943 41 423 108 304 11 1944 47 438 129 297 12 1945 50 501 217 273 11 1946 132 498 313 172 13 1947 198 554 388 152 14 1948 375 568 407 146 15 1949 437 598 453 130 15 1950 318 520 389 115 16 1951 383 577 431 125 21 1952 463 554 378 145 31 1953 528 597 391 159 47 1954 605 641 428 162 51 1955 702 644 341 197 106 1956 747 20 628 201 217 151 59 1957 722 49 636 156 219 133 128 1958 683 55 653 129 239 157 128 1959 633 58 990 345 251 257 137 1960 428 61 1 836 992 379 336 129 1961 343 67 1 849 928 426 343 152 1962 310 73 1 834 742 492 420 180 1963 329 86 1 913 714 520 487 192 1964 356 73 1923 643 561 545 174 1965 355 80 1 913 687 543 517 166 1966 354 75 1 849 590 558 520 181 1967 339 86 1 773 504 549 509 211 1968 371 95 1 495 140 574 552 229 1969 369 34 1565 335 615 531 84 1970 347 1 391 223 659 509 1971 316 1 329 177 688 464 1972 1 221 164 687 370 1973 1 164 207 633 324 1974 273 1 092 171 628 293 1975 242 946 164 586 196 1976
(4) Yallourn Briquette Factory- commenced production December 1924. (5) Includes stock variation. -ceased production 14/12/71. Morwell Briquette Factory- commenced production 19/12/59.
53 APPENDIX 13 Electricity Supply-Retail State of Victoria
SUPPLY AUTHORITY Estimated Customers (at 30/6/76) Retail Sales (1975/76) Population of Percentage Percentage Area Served Number of Grand GWh of Grand (at 30/6/76) 000 000 Total Total STATE ELECTRICITY COMMISSION OF VICTORIA METROPOLITAN REGION 1 228 453.6 31.3 4 649 31.5 EXTRA-METROPOLITAN REGIONS 1 702 733.6 50.5 6 916 46.9
TOTAL S.E.C. RETAIL SUPPLY 2 930 1 187.2 81.8 11 565 78.4 METROPOLITAN CITY COUNCILS (receiving bulk supply from S.E.C.) MELBOURNE (excl. supply to Flemington) 72 30.1 943 BOX HILL (also supplying City of Nunawading) 151 49.8 471 BRUNSWICK 51 20.2 158 COBURG 62 21.3 165 DONCASTER and TEMPLESTOWE 80 21.9 176 FOOTSCRA Y (also supplying part of City of Sunshine) 80 30.6 476 HEIDELBERG (also supplying par\ of City of Northcote) 82 27.8 194 NORTHCOTE 50 18.7 98 PORT MELBOURNE 10 4.0 100 PRESTON 92 30.1 282 WILLIAMSTOWN 29 10.2 125 TOTAL 759 264.7 18.2 3 188 21.6 TOTAL S.E.C. SUPPLY* 3 689 1 451.9 100 14 753 100 OTHER MONARO COUNTY COUNCIL- N.S.W. (serving Bendoc and Bonang) 0.4 0.2 0.8
GRAND TOTAL 3 690 1 452.1 100 14 754 100
*Standard Tariffs
54 APPENDIX 14 Statistical Summary
STATE OF VICTORIA
1975-76 1974-75
000 000 CUSTOMERS SUPPLIED AT 30TH JUNE State Electrictty Commisston retail supply 1 187 1 160 Other metropolitan t;ndertakings (receiving bulk supply from S.E.C. of Victoria) 265 260
Total S.EC. supply 1 452 1 420 Bendoc and 11nnt;.,,; by Monaro County Council N.S.W.) 0.2 0.2
TOTAL CUSTOMERS SUPPLIED 1 452 1 420
POPULATON OF SUPPLY AREA AT 30TH JUNE SE. C. recail supply 2 930 2 912 Ocher metropolitan undertakings (receiving bulk supply from S.E.C of Victoria) 759 757 ...... ,_ Total S.E.C supply 3 689 3 669 Bendoc and Bonang (supplied by Monaro County Council- N.S.W.) 0.4 0.4
TOTAL POPULATION OF SUPPLY AREA 3 690 3 669
POPULATION OF VICTORIA AT 30TH JUNE 3 694* 3 673
ELECTRICITY SALES RETAIL SUPP-LY GWh GWh S.E.C. domestic 5 039 4 815 commercial 1 684 1 561 industrial 4 485 4 302 tract: on 270 252 publtc lighting 87 81
Total S.E.C. retail sales 11 565 11 011 Other metropolitan undertakings (receiving bulk supply from S.E.C. of Victoria) 3 188 3 058
Total S.E.C. supply 14 753 14 069 Bendoc and Bonang (supplied by Monaro County Council- N.S.W.) 0.8 0.7
TOTAL ELECTRICITY SALES RETAIL SUPPLY 14 754 14 070
GENERATED (INCLUDING PURCHASES) Interconnected system 18 900 17 676 Bendoc and Bonang (supplied by Monaro County Council- N.S.W.) 0.8 0.8
TOTAL GENERATED (INCLUDING PURCHASES) 18 901 17 677
INSTALLED GENERATING CAPACITY OF POWER STATIONS AT 30TH JUNE MW MW Base load stations (Yallourn, Yallourn W, Morwell & Hazelwood) 3 016 2 666 Other thermal stations 326 326 Hydro stations 1 403 1 403
TOTAL INSTALLED GENERATING CAPACITY OF POWER STATIONS 4 745 4 395
MAXIMUM COINCIDENT DEMAND ON S.E.C INTERCONNECTED SYSTEM 3 389 3194 (1976 winter compared with 1975 winter) (14/7/76) (11 /8/75)
*Esttmated
55 APPENDIX 15 Standard Tariffs for the State System
1ST JULY, 1976
DOMESTIC
DOMESTIC 'GB' First 90 kWh/ quarter 9.95 c/kWh Next 450 kWh/quarter 3.17 c/kWh Balance 2.58 c/kWh
DOMESTIC, BETTER ELECTRIC LIVING 'GC' First 90 kWh/quarter 9.95 c/kWh (Electric refrigerator and permanently wired range and water Next 450 kWh/quarter 3.17 c/kWh heater required) Balance 2.09 c/kWh
WATER HEATING- NIGHT RATE 'I' 1.26 c/kWh
STORAGE SPACE HEATING, or Storage Space Heating plus First 1200 kWh/quarter 1.26 c/kWh Water Heating 'J' Balance 1.02 c/kWh COMMERCIAL AND GENERAL
COMMERCIAL AND GENERAL NON-RESIDENTIAL
COMMERCIAL LIGHTING 'A' First 450 kWh/quarter 10.92 c/kWh Balance 10.07 c/kWh
COMMERCIAL POWER AND HEATING 'C' First 750 kWh/ quarter 7.20 c/kWh OPTION 1 Next 14 400 kWh/quarter 5.00 c/kWh Next 60 000 kWh/quarter 2.99 c/kWh Balance 2.78 c/kWh OPTION 2 7 a.m. to 11 p.m. Block rates as in Option 1 11 p.m. to 7 a.m. 1.21 c/kWh Rental for each set of two-rate metering equipment $3.60/quarter
COMMERCIAL ALL-PURPOSES 'E' OPTION 1 First 150 kWh/month 10.92 c/kWh Next 700 kWh/month 10.07 c/kWh Next 4 200 kWh/month 6.49 c/kWh Next 20 000 kWh/month 2.99 c/kWh Balance 2.66 c/kWh OPTION 2 7 a.m. to 11 p.m. Block rates as in Option 1 11 p.m. to 7 a.m. 1.21 c/kWh Rental for each set of two-rate metering equipment $1.20/month (High voltage supplies- 5% discount on total bill)
COMMERCIAL RANGE 'F' (COOKING) 2.99 c/kWh
WATER HEATING- NIGHT RATE TARIFF 'I' 1.26 c/kWh (not available with Commercial All-Purpose Tariffs 'E', 'V' and 'M')
COMMERCIAL ALL-PURPOSES MAXIMUM DEMAND 'V' (LOW VOLTAGE) OPTION 1 Demand Charge (indicators are reset monthly) $4.90/kW/month Energy Charge First 100 000 kWh/month 0.99 c/kWh Balance 0.70 c/kWh Min. Demand Charge - 200 kW or half agreed rate, whichever is greater OPTION 2 Demand Charge (indicators are reset monthly) Part A, Recorded between 7 a.m. and 9 p.m. Monday to Friday inclusive $4.90/kW/month Minimum Demand Charge -As for Option 1 Part B. For additional demand recorded outside Part A periods $1.15/kW/month Minimum Demand Charge 100 kW or half agreed additional rate whichever is greater Energy Charge -As for Option 1
COMMERCIAL ALL-PURPOSES MAXIMUM DEMAND 'M' (HIGH VOLTAGE) Details are the same as for Industrial All-Purposes Maximum Demand 'M' except that Option 3 is excluded.
56 APPENDIX 15 CONTINUED
COMMERCIAL RESIDENTIAL
COMMERCIAL RESIDENTIAL 'G' First 100 kWh/ month 10.92 c/kWh Next 4 900 kWh/month 3.83 c/kWh Balance 2.99 c/kWh
COMMERCIAL RANGE 'F' (COOKING) 2.99 c/kWh
WATER HEATING- NIGHT RATE 'I' 1.26 c/kWh
COMMERCIAL RESIDENTIAL STORAGE SPACE HEATING or Combined Storage Space Heating and Storage Water Heating 'IS' 1.26 c/kWh
COMMERCIAL RESIDENTIAL ALL-PURPOSES MAXIMUM DEMAND 'V' (LOW VOLTAGE) Deta11s of th1s tariff are the same as shown under Commercial All-Purposes Maximum Demand Tariff 'V' (Low Voltage)
COMMERCIAL RESIDENTIAL ALL- PURPOSES MAXIMUM DEMAND 'M' (HIGH VOLTAGE) Details are the same as for Industrial All-Purposes Maximum Demand 'M' except that Option 3 is excluded.
COMMUNITY SERVICE
COMMUNITY SERVICE GENERAL 'N OPTION 1 First 150 kWh/ quarter 8.54 c/kWh Next 570 kWh/quarter 6.12 c/kWh Next 14 400 kWh/quarter 340 c/kWh Balance 2.95 C/kWh OPTION 2 7 a.m. to 11 p.m. Block rates as in Option 1 11 p.m. to 7 a.m. 1.09 c/kWh Rental for each set of two-rate metering equipment $3.60/quarter
COMMUNITY SERVICE RANGE 'W' (COOKING) 2.72 c/kWh
COMMUNITY SERVICE WATER HEATING NIGHT RATE 'Y' 1.15 c/kWh
COMMUNITY SERVICE RESIDENTIAL 'R' First 100 kWh/month 8.54 c/kWh Next 4 900 kWh/month 3.41 c/kWh Balance 2.85 c/kWh
COMMUNITY SERVICE RESIDENTIAL STORAGE SPACE HEATING or Combined Storage Space Heating and Storage Water Heating 'YS' 1.15 c/kWh
COMMUNITY SERVICE ALL-PURPOSES MAXIMUM DEMAND 'K' (LOW VOLTAGE) OPTION 1 Demand Charge (indicators are reset monthly) $4.70/kW/month Energy Charge First 100 000 kWh/month 0.97 c/kWh Balance 0.68 c/kWh Minimum Demand Charge 200 kW or half agreed rate, whichever is greater. OPTION 2 Demand Charge (indicators are reset monthly) Part A, Recorded between 7 a.m. and 9 p.m. Monday to Friday inclusive $4.70/kW/month Minimum Demand Charge As for Option 1 Part B, For additional demand recorded outside Part A periods $1.13/kW /month Minimum Demand Charge 100 kW or half agreed additional rate, whichever is greater. Energy Charge -As for Option 1
57 APPENDIX 15 CONTINUED
INDUSTRIAL
INDUSTRIAL - GENERAL
INDUSTRIAL LIGHTING 'A' AND INDUSTRIAL POWER AND HEATING 'C' Details of these tariffs are same as shown under Commercial Lighting 'A' and Commercial Power and Heating 'C'
WATER HEATING- NIGHT RATE 'I' (not available with Industrial All-Purposes Tariffs 'D', 'V' and 'M') 1.26 c/kWh
INDUSTRIAL ALL-PURPOSES 'D' OPTION 1 First 150 kWh/month 10.92 c/kWh Next 400 kWh/ month 10.07 c/kWh Next 4 500 kWh/ month 6.49 c/kWh Next 20 000 kWh/month 2.99 c/kWh Next 100 000 kWh/ month 2.66 c/kWh Balance 2.43 c/kWh OPTION 2 7 a.m. to 11 p.m. Block rates as in Option 1 11 p.m. to 7 a.m. 1.21 c/kWh Rental for each set of two-rate metering equipment $1.20/month Minimum Charge $85.00/month (High voltage supplies 5% discount on tariff charges)
INDUSTRIAL ALL-PURPOSES MAXIMUM DEMAND 'V' (LOW VOLTAGE) Details of this tariff are the same as shown under Commercial All-Purposes Maximum Demand 'V' (Low Voltage)
INDUSTRIAL ALL-PURPOSES MAXIMUM DEMAND 'M' (HIGH VOLTAGE) OPTION 1 (High Voltage Supply from the Distribution System) Demand Charge (indicators are reset monthly) $4.48/kW/month Energy Charge First 0.10 million kWh/month 0.94 c/kWh Next 2.90 million kWh/month 0.65 c/kWh Next 12.00 million kWh/month 0.60 c/kWh Balance 0.51 c/kWh Minimum Demand Charge 500 kW or half agreed rate, whichever is greater. OPTION 2 (High Voltage Supply from the Distribution System) Demand Charge (indicators are reset monthly) Part A, Recorded between 7 a.m. and 9 p.m. Monday to Friday inclusive $4.48/kW /month Minimum Demand Charge As for Option 1 Part B. For additional demand recorded outside Part A periods $1.1 0/kW/month Minimum Demand Charge 250 kW or half agreed additional rate, whichever is greater. Energy Charge Block rates as in Option 1 OPTION 3. (High Voltage Supply from the Sub-Transmission System) Demand Charge (indicators are reset monthly) $4.48/kW/month Energy Charge Block rates as in Option 1 Discount 3.5% on tariff charges Minimum Demand Charge 10 000 kW or half agreed rate whichever is greater.
INDUSTRIAL- FARMS
FARMING GENERAL SERVICE 'B' OPTION 1 First 120 kWh/quarter 10.26 c/kWh Next 540 kWh/quarter 6.90 c/kWh Next 14 400 kWh/quarter 3.83 c/kWh Balance 2.99 c/kWh OPTION 2 7 a.m. to 11 p.m. Block rates as in Option 1 11 p.m. to 7 a.m. 1.21 c/kWh Rental for each set of two-rate metering equipment. $3.60/quarter
WATER HEATING- NIGHT RATE 'I' 1.26 c/kWh
MINIMUM CHARGES For each account rendered $2.60 a month- except for All-Purposes Tariffs 'D', 'K', 'M' and 'V' where amounts are stated.
58