How about 36.5 years on 60 each 6-volt 245 to 250 ah batteries. First run a set of 30 Trojans in my EV for 8.5 year and than install them into a mountain cabin all connected in two strings of parallel 6 volts to run two 5 kw 120 vac 60 cycle inverters with a input of 12 volts that ran for 10 years.
Just got done replacing Trojans with 30 U.S. 6 volt batteries rated at 250 ah connected to the same configuration that ran my EV for 8 years. If these batteries last another 10 years, this would make the 36.5 years. The Trojan batteries cost $2100.00 and the US Batteries Cost $4140.00. Got a core rate of $20.00 each 6 volt on the Trojans or $600.00 and maybe $600.00 or more ten years from now. In the winter, there are 13.5 volt solar cell banks made by the Motorola company which has a plant here in Montana. In the summer some people use a water generator which is actually a 6 inch diameter irrigation pump that is connected to a AC generator and irrigation pipe that run up hill to a spring to collect the water. The water is also use for house hold used two. So pure and cold, it tested better than city water. Where there is no water source, than some use a wind generator, back up by the battery pack, in turn back up by a diesel generator. Roland ----- Original Message ----- From: Ben Goren via EV<mailto:email@example.com> To: Cor van de Water<mailto:cwa...@proxim.com> ; Electric Vehicle Discussion List<mailto:firstname.lastname@example.org> Sent: Monday, May 04, 2015 5:48 PM Subject: Re: [EVDL] virtual power plant On May 4, 2015, at 4:39 PM, Cor van de Water via EV <email@example.com<mailto:firstname.lastname@example.org>> wrote: > After 10 years of daily full-cycling, I am presuming that the value of the > pack > and the 10-year old electronics is approaching zero I don't think that's a valid assumption in this case. Tesla is including a ten-year warranty, meaning they're going to have to typically be nearly as good after 9 years and 364 days as they are new (presumably within some sort of specified degradation, such as 80% capacity). And Tesla's vehicular batteries are significantly outperforming expectations. The resale value of these units might not be anywhere near $10,000, but they'll still be doing the job you bought them to do and will likely continue to keep doing that job for at least as long as a typical mortgage. And if, in ten years, you can buy a comparable battery for, say, a mere $1,000? Well, then, we're _all_ that much wealthier. That's the great thing about alternative energy investments: barring complete loss, you basically can't lose. With my solar panels, I effectively pre-bought several years worth of electricity at then-market rates. Everything after that is free electricity. If rates go up, I win even bigger because I'm not spending that money. Rates aren't going to go down, but, even if they do, that means that other goods and services made using that electricity will be cheaper. My own payoff time may be theoretically stretched out...but that's already money under the bridge and I was happy to pay what I felt was a fair price at the moment. b& _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub<http://www.evdl.org/help/index.html#usub> http://lists.evdl.org/listinfo.cgi/ev-evdl.org<http://lists.evdl.org/listinfo.cgi/ev-evdl.org> For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA<http://groups.yahoo.com/group/NEDRA>) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150504/94c53dfd/attachment.htm> _______________________________________________ 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)