

2·
2 hours agoIt is powered by phase change of a liquid, so almost steam.


It is powered by phase change of a liquid, so almost steam.


400MWh is the size of the one being planned in Vermont, which would have been the largest commercial system if the states had actually built it. If you follow the link in the article to the story about that one it gives a range of cost per Wh comparing this to hydro storage and lithium ion.
Pure unadulterated capitalism.