South Australia Premier Jay Weatherill, with the Labor Party, touted the world's largest lithium-ion battery as part of his $420 million plan to take his state off the country's national power grid.
"Neoen is pleased to be able to reinforce its Australian footprint through the achievement of the Hornsdale Wind Farm & Battery and is extremely proud to contribute further to the development of renewable energy in Australia".
The 100MW/129MWh battery is capable of powering about 30,000 homes for a little over an hour.
The rest of the country will be looking at the Musk's battery and how in performs in South Australia with the country overall facing an energy crisis with a system that is "among the world's costliest and dirtiest", and "annoyingly unreliable", wrote Australian Financial Review in October.
Recently, Elon Musk won a $50 million bet when he completed the building of the world's largest lithium-ion battery in less than 100 days for the southern Australian outback.
The powerpack, located in the rural town of Jamestown north of Adelaide, is connected to a wind farm operated by French energy firm Neoen, was switched on early Friday as temperatures started to rise, The Telegraph wrote.
South Australia, which relies heavily on solar and wind-generated energy, has been scrambling to find a way to bolster its fragile power grid since the entire state suffered a blackout during a storm previous year.
Supporters of the project say it will help stabilise the grid and provide "dispatchable renewable energy" in a region that now gets more than 40 percent of its electricity from wind energy.
"Storage can respond within a fraction of a second".
Hoping that Tesla's li-ion battery storage solution would have greater adoption in the future, Elon Musk visited the site and hailed the battery as "just the beginning".
The efficient battery system will be the sustainable, effective energy solution, according to Tesla, because, South Australia has the highest electricity prices in the world.