On May 4, 2015, at 1:07 PM, Cor van de Water via EV <ev@lists.evdl.org> wrote:
> I mean 8 Amps at around 400V is not an EV power level, it is actually rather > underwhelming - I wonder why Tesla with a profile of high-power application > is releasing such a low power spec. A "nominal" 5.8A @ 400V is comparable to a 20A load on a 110V line, in line with a typical single home circuit. You can put up to nine of them in a single unit, with up to a 30kW combined peak load. That's pretty well in line with typical household circuitry and usage. They're selling them less as whole-home backup or off-grid batteries and more as arbitrage devices. Fill the batteries at off-peak hours, drain them during on-peak hours and only feed from the grid during on-peak when the batteries are empty. I've heard payback figures bandied about in the three-year range, making them the equivalent of a 25% annual return on investment -- simply phenomenal. If true, if you've got the capital to invest in them, you'd be an idiot to not buy them. ...if true.... b& _______________________________________________ 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)
