Stockyard Hill windfarm is a 530MW facility currently under construction near Ballarat, Victoria, Australia. The windfarm will be the biggest in the southern hemisphere, upon commissioning in 2019.
Goldwind Australia is responsible for providing engineering, procurement and construction services to the windfarm, as well as operations and maintenance (O&M) services during its service life.
The new windfarm will power approximately 391,000 Victorian households and offset approximately two million tonnes of CO2.
The project is expected to employ 300 people during the construction phase and will inject approximately A$5m ($3.6m) into the local community, upon commissioning.
The Victorian Government approved the project in April 2018. Construction began with the official ground-breaking ceremony held in June 2018. It is expected to be completed by the end of 2019.
The windfarm site is located 35km west of Ballarat near the Yarrowee River in Victorian central highlands. It is located within the agricultural district, where most of the area is used for grazing and cropping.
The perimeter of the windfarm stretches to 5km south of Beaufort near Western Highway and approximately 4km north of Skipton town.
The Victorian Government granted permission for the development of an on-site quarry for the windfarm under the Mineral Resource Sustainability and Development Act (MRSDA).
The Stockyard Hill windfarm will be installed with 149 Goldwind GS140 3s turbines. Each of the three-blade wind turbines will have a diameter of up to 140m and a rotor swept area of up to 15,480m². The operating temperature of the unit is between -30°C and 40°C, while its survival temperature range is between -40oC and 50oC.
The 3.5MW turbines can be erected on conical steel or hybrid towers with a hub height of 100m or 120m respectively.
Goldwind Australia received an approval from the Victorian Government to increase the tip height of the turbines from 132m to 180m.
The windfarm and terminal station will be connected by new 132kV external overhead power transmission lines, which will extend up to 75km. The transmission lines will be supported by hexagonal-shaped poles made of galvanised steel.
The maximum height of the poles will be 42m, while the minimum height will be 30m. The maximum base width of the pole will be 2m.
Double strain poles with an average height of 32m, 34m-high suspension poles, and strain poles with an average height of 34m are used for the transmission lines. The minimum clearance height between the land and the overhead transmission cable will be 8.6m.
The new Haunted Gully Terminal Station (HGTS) will be located at the intersection of Lower Darlington Road and Smiths Road. It is being constructed at the southern part of a 158ha site.
Origin Energy signed a long-term power purchase agreement with Goldwind Australia in May 2017 to buy the entire power generated by the windfarm until 2030.
A joint venture (JV) of SNC-Lavalin and WBHO Infrastructure (WBHO) was preferred as the balance of plant contractor by Goldwind. The JV will be responsible for the engineering, procurement and construction of all electrical infrastructure.
The joint venture will build foundations, hardstands, internal access roads, and upgrade public roads, under the contract.
Keppel Prince Engineering was awarded a contract to supply 28 towers for the windfarm, in September 2018.
Goldwind and Australia Energy Market Operator (AEMO) placed a contract with AusNet Services to construct, own and operate the transmission lines and a new terminal station in Haunted Gully for the Stockyard Hill windfarm, in May 2018.
Zinfra, on behalf of AusNet Services, will build the transmission infrastructure for the windfarm.
A syndicate of nine banks are funding the Stockyard Hill windfarm, which is estimated to cost A$700m ($506m).
The syndicate of banks led by National Australia Bank includes The Bank of Tokyo-Mitsubishi UFJ (MUFG), ABN AMRO, Industrial and Commercial Bank of China (ICBC), Mizuho Bank, Commonwealth Bank of Australia (CBA), Sumitomo Mitsui Banking Corporation (SMBC), Westpac Banking Corporation, and Societe Generale.
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