Tesla has completed the construction of the world's largest lithium-ion battery in Australia, making it expected to reach 100. The South Australian government said on Thursday that the deadline for battery packs to be opened was closed. Tesla won a bid in July to build a 129 MW battery for southern Australia. Independent state, chief executive Elon Musk has vowed to install it within 100 days of signing the grid connection agreement, or to give it to the state for free. When the grid-connected agreement was signed in September 29, Tesla had already completed half of the installation of the battery pack. Tesla's powerpack is now fully installed in a wind farm operated by sinn in France, and the test will begin to provide power grid security services in South Australia. "When others are just talking about it, we are implementing our energy program to make South Australia more self-containedThis summer, there is enough power and more affordable energy for South Australians, "State Prime Minister Jay withermere said in a statement. The state has not yet stated how much it will pay for the battery, which is part of $510 (£ 291. 38 m) plans including dieselIn the past 18 months, after a series of power outages, the generator has been started to help keep the lights on. Australian Energy Market operators have warned that electricity supply will be tight this summer, especially in South Australia and neighboring Victoria, one of the largest coal markets in the market. The power plant was shut down during the parade.