Notice: This episode initially ran in 2018
California is producing a ton of photo voltaic power–some days, greater than folks can use. It may energy the entire state quickly, aside from one downside: There is not any option to maintain on to all that vitality at evening.
A few of the nation’s largest vitality firms are attempting to determine easy methods to retailer the ability. They’re shopping for large lithium batteries, and imagining methods to faucet the batteries in electrical automobiles. However there’s another choice.
In the present day on the present, we go to the world’s largest battery, constructed out of a mountain and a lake.