Tesla’s South Australian battery project, described as the world’s largest lithium-ion storage system when it was completed, has managed to save the state a large sum of money. The Hornsdale project, completed last November in 54 days, has reduced costs associated with stabilizing the energy grid by nearly AU$40 million ($28.9 million).
It’s a big win for the 100-megawatt project, which has quickly proven its worth in its first year of operations. French energy firm Neoen, which manages the battery, asked consultancy firm Aurecon to evaluate the project. The team found that the battery has eliminated the need for 35 megawatts minimum of local frequency control ancillary service (FCAS). These services are normally used to regulate the power in a grid, ensuring a dependable stream of electricity. The battery, however, provides a good quality regulation FCAS on its own, like on December 14 when the battery plugged the gap in power after Victoria’s Loy Yant power plant failed in just 140 milliseconds. The report found that these services cost nearly AU$40 million in both 2016 and 2017.Read More... Tesla's Battery Has Already Saved South Australia a Huge Amount of Money