I don't have wsj access to read the article, but for those looking for some help in doing the math Danielle Fong has an interesting collection of notes on calcu

I don't have wsj access to read the article, but for those looking for some help in doing the math Danielle Fong has an interesting collection of notes on calculating lithium ion storage growth (page 19) : http://worrydream.com/ClimateChange/refs/DanielleFong-GrowthRateRequiredInEnergyStorage.pdf http://worrydream.com/ClimateChange/refs/DanielleFong-Growth... (found via the energy storage section in http://worrydream.com/ClimateChange/ http://worrydream.com/ClimateChange/ )