 The EV takes up about 30% of the much higher total electricity use, dropping the share for all other uses significantly. Did you know that was the stat? Yeah, that's a lot bigger than I would have guessed. Two home-charged EVs would eat up nearly half the household's total electricity usage and require thousands of dollars to upgrade the house's electric panel. Today's 50 KVA Transformers, which cost about $8,000 each, can power about 60 homes.