The World's Largest Battery Isn't What You Think

Exploring the world's largest batteries. Old tech could still be the future of energy storage. Go to https://brilliant.org/Undecided to sign up for free. And also, the first 200 people will get 20% off their annual premium membership. Because of the intermittency of renewable energy like wind and solar power, storing large amounts of electricity is a necessity for the decarbonization of our energy system. However, we still don't have enough batteries to compensate for renewable energy slumps across the planet. When thinking about the biggest utility-scale energy storage installations, a huge cylindrical lithium ion battery powered light bulb may go off in your head. But what if I told you the world’s largest battery taps into water rather than lithium? Can an old technology, even one still learning new tricks, be the answer? Let’s see if we can come to a decision on this.

Corrections:
7:04 Clarification - $100/kWh is the build cost.

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