>That's a huge exaggeration. There are several solutions building commercial plants right now that should be good enough. Ambri is one example that was designed

>That's a huge exaggeration. There are several solutions building commercial plants right now that should be good enough. Ambri is one example that was designed from the ground up for grid energy storage. The largest such example cost $100 million and can run the state grid it's connected to for 7 minutes.