I dont know, 4800 watts isnt that much when you think about it. Also what about the battery and fuel? My uncles golf diesel had a battery heater, an engine wrap heaterm oil pan heater, just to name a few.
Oh yeah, VA Power has you covered if you need MORE POWER.

I checked with them when I rented a Leaf from Enterprise about a level 3 charger as our braker box couldnt handle it. THey said they could pull a new line and give me what ever I want and a meter to boot.
