Department of State Development (DSD) PART B ATTACHMENT 2: STATE SITES 1.0 DEFINITIONS • “AC” means Alternating Current; • “APY” means Anangu Pitjantjatjara Yankunytjatjara; • “AVR” means Automatic Voltage Regulator; • “DC” means Direct Current; • “DSD” means the Department of State Development; • “HMI” means Human Machine Interface; • “HV” means High Voltage; • “LV” means Low Voltage; • “NEM” means National Electricity Market; • “PC” means Personal Computer; • “PCBU” means Person Conducting a Business Undertaking as defined in the Work Health Safety Act 2012; • “PLC” means Programmable Logic Controller; • “Principal” means Executive Director, Energy Markets and Programs Division in the Department of State Development as the delegate of the Minister for Mineral Resources and Energy; • “RAES” means Remote Areas Energy Supplies scheme of South Australia; • “SCADA” means Supervisory Control and Data Acquisition; • “SWER” means Single Wire Earth Return; • “VAr” means Volt Amps reactive; • “VPN” means Virtual Private Network; • “WHS” means Work Health Safety. 1 2.0 RAES BACKGROUND INFORMATION The South Australian Government is committed to providing reliable, safe and high quality power to all consumers supplied from electricity generation and distribution systems in remote communities of South Australia under the Remote Areas Energy Supplies (RAES) scheme. The Minister for Mineral Resources and Energy is responsible on behalf of the Government for electricity supply to 15 Aboriginal Communities in the Anangu Pitjantjatjara Yankunytjatjara (APY) lands (Amata, Iwantja, Kaltjiti, Kalka, Kanpi, Mimili, Murputja, Nyapari, Pipalyatjara, Pukatja, Umuwa, Watinuma and Yunyarinyi), Oak Valley (Maralinga Tjarutja) and Yalata (Aboriginal Lands Trust), as well as 10 remote state sites (Marla, Oodnadatta, Marree, Kingoonya, Glendambo, Nundroo, Parachilna, Blinman, Mannahill and Cockburn). This Background Information pertains to the 10 State sites. 2.1. WORKPLACE HEALTH AND SAFETY BACKGROUND INFORMATION The Principal as the Person Conducting Business or Undertaking is responsible at each work site to: • Provide buildings and infrastructure that minimise and control risks to health, injury or accident; • Audit all buildings and infrastructure on a regular basis to identify safety hazards and non-compliances; • Undertake risk assessments of identified hazards and implement reasonable and practicable controls to reduce the risk of injury; • Ensure that contracts contain clauses that require the Contractors to comply with the WHS Act and Regulations 2012; and • Audit the Contractors on a regular basis to ensure the Contractor is managing its WHS obligations in relation to any interaction between the Contractor and DSD workers and compliance with any DSD Site Safety requirements. Prior to the awarding of contracts the Principal will have: • Inspected all sites; • Prepared Safety Data Sheets; • Prepared Plant & Equipment registers; • Identified hazards and risks; • Established Corrective Action Registers by site; and is • Working with best endeavors to address risks on a priority basis and put in place controls where hazards/safety issues are not able to be practicably removed entirely or resolved immediately. 2 2.2. STATE SITES MAP RAES State Sites 3 2.3. BLINMAN Blinman is a town deep in the Flinders Ranges, in the mid north of South Australia. The town is just north of the Flinders Ranges National Park, 60 km north of Wilpena Pound and 485 km north of Adelaide. In the 2006 Census, the population of Blinman was 151 which consisted of 52.3% Male and 47.7% Female. The Blinman Progress Association and the Outback Communities Authority officially represent the interests of the community. Generally the weather is clear sunny days with cool winters, and hot and dry weather, but generally not extreme temperatures. The average rainfall a year is around 200 mm which falls mainly in winter. Based on the climate records of the nearest weather station at Leigh Creek, Blinman experiences average summer maximum temperatures of 39.6 degrees Celsius with an average low of 21.6 degrees Celsius throughout January. Whereas in winter, average temperatures range from a maximum of 19.9 degrees Celsius to a low of 4.0 degrees Celsius through June. There is an average annual rainfall of 232.0 millimetres. 4 2.3.1. BLINMAN POWER STATION Location of the Blinman Power Station In Relation To the Township Power Station - Front 5 Power Station – Control Room GENERATION The Blinman Power Station utilises three diesel generating sets; two located within a shipping container onsite and a third in an acoustic canopy. The three units are controlled via a ComAp system with individual unit controllers governed by a main site controller. Electricity is produced by three diesel generator sets as follows: Diesel, Install KW Hours run as Engine Gas, or date Unit Make rating at Jan 2015 Model Diesel- (approx.) Gas (approx.) Generator Set 1 Caterpillar 3304B D 90 68,667 21/11/98 Generator Set 2 Caterpillar 3304B D 90 71,057 2/10/98 Generator Set 3 Caterpillar 3208 D 120 43,661 26/7/97 6 LOAD DATA Town demand shows the following characteristics: kW (approx.) Peak Load 80 Minimum Load 12 Average Load 34 Average annual estimated energy produced at station: 290 MWh Power Station – Gen. Set 1 7 Power Station – Gen. Set 2 DISTRIBUTION Electricity is supplied via a town mini grid system that is connected to the Blinman Power Station located within the township. The Blinman Power Station utilises approximately 17 kms of SWER lines and nearly 500 metres of LV (415V) underground distribution lines to distribute power to homes and businesses. The Blinman Power Station utilises a 240V to 19kV Step-up transformer to distribute power to customers. COMMUNICATIONS The Power Station has a phone line as satellite internet provided by Optus 2.3.2. BLINMAN POWER STATION - TECHNICAL OVERVIEW FUEL SYSTEM There is a single 27,000 litre diesel fuel tank at Blinman. 8 Power Station – Fuel Tank The diesel fuel tank pumps to the generator day tanks automatically controlled by level sensors in the day tanks, dependant on the priority order entered on the HMI system. The fuel level is monitored by a digital level sensor with feedout available to the local operator and as a data tag in the ComAp monitoring system. FURTHER INFORMATION The following website provides additional information regarding the town of Blinman: http://www.blinman.org.au/ 9 2.4. COCKBURN Cockburn is a town on the border of South Australia and New South Wales situated near Broken Hill. In the 2006 Census, the population of Cockburn was 90 which consisted of 63.3% Male and 36.7% Female. Based on the climate records of the nearest weather station at Broken Hill Airport AWS, Cockburn experiences average summer maximum temperatures of 33.5 degrees Celsius with an average low of 19.1 degrees Celsius throughout January. Whereas in winter, average temperatures range from a maximum of 15.9 degrees Celsius to a low of 5.6 degrees Celsius through June. There is an average annual rainfall of 251.4 millimetres. Location of the Cockburn Transformer in Relation to the Township GENERATION The RAES scheme supplies electricity to the township of Cockburn by purchasing electricity from the NSW grid and on selling it under the RAES tariff rates. The Principal shall continue to purchase power under existing arrangements for the RFP. No services are required for Generation in the RFP response. 10 DISTRIBUTION The 20 customers in Cockburn are supplied with electricity via a distribution line from Broken Hill owned by Essential Energy (wholly owned by Origin Energy), that in turn sources energy from the National Electricity Market (NEM). The RAES scheme purchases wholesale energy from Essential Energy at the Cockburn boundary then retails that energy within a SA Government owned reticulation system that connects to each consumer in the community. Electricity is supplied via a town mini grid system that is comprised of approximately 150 metres of low-voltage (415 V) overhead lines, supplied from a single 22kV/415V step down transformer connected to the Origin HV (22 kV) line which feeds the township from the NSW grid. COMMUNICATIONS RAES does not currently have any local communications at Cockburn as no power generation facilities exist. FURTHER INFORMATION The following website provides additional information regarding the town of Cockburn: http://www.cockburn.org.au/ 11 2.5. GLENDAMBO Glendambo is a town on the Stuart Highway, 254 kilometres south of Coober Pedy and 592 kilometres north of Adelaide. At the 2006 census, Glendambo had a population of 77. The Glendambo and Districts Progress Association and the Outback Communities Authority officially represent the interests of the community. Based on the climate records of the nearest weather station at Woomera Aerodrome, Glendambo experiences average summer maximum temperatures of 34.5 degrees Celsius with an average low of 19.6 degrees Celsius throughout January. Whereas in winter average temperatures range from a maximum of 16.9 degrees Celsius to a low of 5.8 degrees Celsius in June. The annual rainfall averages 185.3 millimetres. 12 2.5.1. GLENDAMBO POWER STATION Location of the Power Station within the Township Power Station – Front 13 Power Station – Control Room GENERATION Electricity is generated by diesel/gas generator sets, with diesel fuel priority in place at the present time. The Power Station has three generator sets as follows: Diesel, Hours run Install Engine Gas, or KW rating as at Jan date Unit Make Model Diesel- (approx.) 2015 Gas (approx.) Generator Caterpillar 3304 DG 90 25,394 30/5/15 Set 1 Generator Caterpillar 3306 DG 185 82,605 12/01/15 Set 2 Generator Caterpillar 3208 DG 120 43,991 4/11/99 Set 3 The three generators at Glendambo are automatically controlled using a ComAp control system; each individual generator is governed by a ComAp IG-CU unit, with an additional unit controlling the system as a whole. The generators have the capacity to operate as Diesel-Gas hybrids and the site has Type-B gas compliance.