On Mon, 22 Jul 2013, Gary Neal wrote: > 85,000 Whr * 60 (mins/hour) / 5 mins = 1 MW, not 60 MW.
On Mon, 22 Jul 2013, Cor van de Water wrote: > I think you are trying to charge in 5 seconds, not 5 mins, according your > power calculation ;-) > 5 min is 1/12 hour, so if you would be able to recharge from 0 to 100% > and deliver 85kWh in 5 min, it would take 12 x 85kW = 1 MW. Yes, my original math was done in too much haste. It is still quite a bit of power. Even at 10 minutes and 80% charge, 400KW is quite a bit of power. There may not be much loss in the cables, but they will be quite heavy. The connectors on the other hand will require a huge surface area, tight clamping, and some sort of active cooling. A lot of solar panels and batteries are going to be required to be able to assist the utility to deliver this power. Especially if it is supposed to work like todays gasoline refueling stations with multiple vehicles recharging at once. Ed _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
