As a refresher, in 2016, South Australia experienced a near total blackout after a crazy storm brought 80,000 lightning strikes and at least two tornadoes to the area. When a politician blamed the blackouts on the push for renewable energy, Musk and Tesla bet they could power the area with the company’s PowerPacks within 100 days—and did it in 60.

In just two years, the Neoen-owned Hornsdale Power Reserve—literally a facility full of PowerPacks that receives and stores energy from nearby wind and solar farms—has worked as advertised, saving South Australia more than $100 million in network costs. By storing power up to its capacity of 100 MW, this “battery” can absorb brief blips in the grid surrounding it, reducing outages for residents and easing the burden on businesses or facilities that lose money, product, and more during those outages.

See Also:

This is what it’s like to spend your whole life growing up in Erdogan’s Turkey

The disturbing true story of the Pied Piper of Hamelin

Victorian Big Battery Megapack will be built about 40 miles outside Melbourne, and it’s double even the upgraded size of the existing Hornsdale Power Reserve. Like Hornsdale before, the Victorian Big Battery Megapack will become the largest facility of its kind in the world.

Read more: Popular Mechanics