by Julian Spector
July 21, 2017

Enough with all that lithium-ion talk. 

Sure, it makes up 97 percent of all the stationary storage capacity installed in the U.S. so far this year. But if energy journalists only focused on clear market leaders, we'd be spending a lot less time covering solar power, which, despite strong growth, constitutes only a sliver of the U.S. electricity supply.

Scale matters, but so does momentum, and I keep running into developers of lithium-ion alternatives with limited deployment who are taking concrete steps to scale up and compete where the...