Never meant to imply that, though hydrogen is just a different manner of chemical storage and wildly inefficient. Pumped hydro (gravity storage) is also doing

Never meant to imply that, though hydrogen is just a different manner of chemical storage and wildly inefficient. Pumped hydro (gravity storage) is also doing its part, but not really growing in the exponential manner as battery cells[0]. I'd be curious to know if there's any non-'battery' storage technologies that are on a similar growth curve. [0] https://www.statista.com/statistics/1304113/pumped-storage-hydropower-capacity-worldwide/ https://www.statista.com/statistics/1304113/pumped-storage-h...