[elihu]

How much of that is just sensitivity to the cost of battery cells? If most of the world can buy lithium iron phosphate cells at $100 a kw/h, would battery storage be cost effective in ways it isn't at $300 a kw/h?

(I'm not sure what the actually LFP cell wholesale costs are these days; I get the impression that historically they've been a lot cheaper in China due to patents, but the last of the major patents expired about a month ago so maybe low cost cells will show up everywhere if production can keep up with demand. As a retail customer though in the U.S. it's really hard to find anything under about $300 a kw/h -- if utilities are paying a similar price, I can understand them not wanting to go all-in on battery storage. There's no reason for them to continue to be that expensive.)