Back in March, when Mike Cannon-Brookes, co-founder of Australian software maker Atlassian, asked on Twitter how serious Tesla executive Lyndon Rive and Tesla CEO Elon Musk actually were about installing 100 megawatt hours of battery storage in 100 days, providing he makes "the $ happen (& politics)", Elon Musk tweeted this response: "Tesla will get the system installed and working 100 days from contract signature or it is free. That serious enough for you?"

Well, now the time has come. Tesla landed the agreement, after the South Australian Government as a leader in renewable energy, looked for a sustainable solution to ensure energy security for all residents, and is now racing against the clock to fullfill its March promise.

In a press release, Tesla stated: "Upon completion by December 2017, this system will be the largest lithium-ion battery storage project in the world and will provide enough power for more than 30,000 homes, approximately equal to the amount of homes that lost power during the blackout period."

Tesla Powerpack will charge using renewable energy from the Hornsdale Wind Farm by Neoen. During peak hours electricity will be delivered to help maintain the reliable operation of South Australia's electrical infrastructure. In addition, Tesla says, "the same technology that can help stabilize the South Australian grid can also be used by homeowners to collect energy during the day so it is stored and made available day and night, providing uninterrupted power even if the grid goes down."