Well it should be Electrovaya. They are starting awfully small. Maybe in a year they will get up to a useablle size which is 15 to 25 KW. My home lead acid battery bank is 470AH @ 50 VDC or 23kwh. I guess it really depends on how it is packaged and intended to be used. Put enough of them in series/parallel......

I was in Las Vegas attending a solar winter training in February. Canadian Solar was there. I asked several questions about Electrovaya and Canadian Solar. It was as if I was from another planet. Their sales people had no idea that Electrovaya was even a partner!