miimura
Well-known member
While I agree that the faster the chargers the better, I think that 100A DC is a reasonable minimum. That would allow the BTC dual standard chargers like the ones NRG installed in Gilroy and Sunnyvale which are powered from 120Y208V 3-phase power commonly used at commercial sites like grocery stores and hotels that have large existing utility transformers. All the 110A+ units I've seen would require a dedicated 277Y480V 3-phase utility transformer or a substantial boost transformer.