Lincoln Gap windfarm is a 212MW project being developed by Nexif Energy Australia, approximately 15km west of Port Augusta, South Australia.
Early development works on the project were taken up by Wind Energy Solutions in 2004. The environmental impact statement was submitted in 2005 and the project was granted approval in 2006.
Wind Energy Solutions sold the windfarm to One Wind Australia in 2013. Nexif took over the management of the project from One Wind in November 2015 and submitted a modified proposal with detailed designs, which was approved in 2017.
Nexif signed two large-scale generation certificate (LGC) contracts with ERM Power in May 2017 and a final investment decision was taken during the same year. The project is estimated to cost $450m.
The installation activities for the project are expected to take between 12 and 18 months, while completion is scheduled for the end of 2018 and commissioning is expected in the first quarter of 2019.
The windfarm is expected to operate for more than 25 years and provide power to approximately 155,000 households. It will also help in reducing more than 6Mt of carbon emissions a year and generate between 110 and 130 jobs.
The Lincoln Gap windfarm is located in an ideal location far from residential areas. The site is known to have an excellent wind source and easy access to the grid.
The windfarm will be installed with 59 Senvion 3.6M140 Eco Blade Control (EBC) turbines in two phases. The first phase will include the installation of 35 turbines, which will deliver 126MW of power, while the second phase will install 24 turbines that will deliver 86MW.
The windfarm will also feature a 10MW battery storage facility, which is upgradeable to 30MW in the future, to achieve grid stability and reliability.
The windfarm is expected to export approximately 800,000MWh a year.
The 3.6M140 EBC turbine is a successor of the 3.4M140 EBC and is suitable for sites having low to medium wind speeds. It has a nominal capacity of 3,600kW and can be operated in temperatures ranging from -20oC to 35oC. The hub height of the turbines ranges from 80m-160m, while the rotor diameter is 140m.
The rotor blades are aerodynamically designed and the drive train is compact and efficient, enabling the turbine to deliver high energy yields, while retaining low noise levels (up to 104db in all modes of operations).
The turbine features the EBC platform, which includes lightweight construction of the blades using Senvion’s Rodpack technology. The EBC platform is highly dependable, durable, and ideal for low-wind sites.
Nexif Energy signed a transmission connection agreement with ElectraNet in September 2016. The generated power will be transmitted to a 275kV grid line located south of the Lincoln Gap Windfarm, as per the agreement.
Nexif also signed a long-term offtake arrangement with Snowy Hydro.
Clean Energy Finance Corporation (CEFC) is providing A$150m ($115m) for the construction of the first stage of the windfarm, while Investec is providing working capital facilities totalling A$39m ($30m).
In September 2016, Nexif Energy signed an engineering, procurement and construction contract with Senvion to build the windfarm.
The scope of work also includes the supply of Senvion 3.6M140 EBC turbines.
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