A power wall is only 14KWh Sent from my iPhone
> On Aug 20, 2019, at 2:50 PM, Willie via EV <[email protected]> wrote: > > > > On 8/20/19 1:20 PM, Lee Hart via EV wrote: > >>> Also, the modularity. Not enough power? Just add another EV. >> There you go. Buy a second Tesla. :-) Connect their two 12v DC/DCs in >> series. :-) > > Semi-obvious jest. But... I don't see that as impossible. > > Actually, my first choice of an EV for this task would be an imiev. I have > two so the potential is to get 1kw from each of 3 EVs. A Tesla has a FAR > bigger battery than can be used overnight. An imiev or depleted Leaf would > be better choices. Each would give only 1/5 the power of a PowerWall but > would more than double the available energy; it is the energy that is in > short supply. >>> I'm not sure the micro inverters (for 60 cell panels) will do well with >>> 24v; I'm seeking an "upverter" with adjustable output. >> There may be some problems powering a microsine with a DC/DC or battery. >> They expect a PV panel, which looks like a current source. It will be using >> an MPPT algorithm to try to find the best current the PV can supply >> (regardless of its voltage at the moment). It may not be "happy" with a >> voltage-source supply like a battery or DC/DC. >> I have a Trace MS100 microsine inverter on my 24v PV panels. When the PV >> voltage drops under 20v, it shuts down even though the panels can still >> provide about 1 amp at that voltage. I tried connecting the panels to three >> 6v batteries (18v). The PV panels would happily charge them to about 22v >> with no other load. >> But the microsine did not work when I connected it to the PV panels + 18v >> battery. The voltage was in range (about 22 volts); but the microsine would >> be off for 5-10 seconds, then turn on and ramp up the power to just under >> 100w over a few seconds; then shut down, wait another 5-10 seconds, and >> repeat. This was not a useful way to generate power. > > Thanks for the warning. I will be sure to test before I get too far along. > The testing will not require much expenditure; I have a good supply of the > M215 inverters. I hope to run four or five (or more) inverters in parallel > on a single car. > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
