I would gladly participate in (full) V2G and get free electricity, as long as I can set a reasonable min level of charge that the car needs to have by the time that I use it again. Since V2G is often more about stabilizing (instant power) and not so much about energy transfer (discharge percentage) there is hardly any impact on car batteries from V2G. I have said before: braking for a stop and accelerating again is about the same process as V2G. There is a limited amount of energy involved, the grid is not going to suck your battery dry halfway the day - V2G may use a few percent of your capacity and it may use *all* of the power that your car can muster for a short time for the stabilizing process (limited by the service, the charging station and the (2-way) charger that your vehicle would be equipped with.
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: EV [mailto:[email protected]] On Behalf Of Robert Bruninga via EV Sent: Thursday, January 08, 2015 7:05 AM To: EVDL Administrator; Electric Vehicle Discussion List Subject: Re: [EVDL] EV Demand Response - backdoor solution >> simply have BMW, TESLA or GM or any other EV MFR that has direct >> wireless remote control of their vehicles oesystem implement the >> charging/grid algorithm since they alreadyave the REMOTE CHARGE >> CONTROL system to the car. >> Then the only finance negotiation is between the Utility and the Car MFR. >> ... (who passes it back to the car owner) > I may be misunderstanding this idea. However, I find it a little disconcerting.... > ... when I purchase something, I should own and control it. > If the manufacturer retains control of when and where > my EV can charge and discharge, it seems ... I don't fully control > (own) the car. I remember a comment by a utility back a few years ago that said V2G to them would be worth almost $2000 per car. That is, if the system could be made to work, they would be willing to offer FREE electricity per year to those who participated in V2G. The math is not hard... Since the utility has to pay TEN to TWENTY times the cost for electricity during peak brown-out loads, they did the math and realize to be able to borrow a few 10 minute bursts of energy from 75 million car batteries during those 10-minute critical periods, the could more than make up for it by giving free electricity when the prices are low. Of course, there is a HUGE psychological hurdle to owners for such V2G where the utility takes power back from the car. But by implementing only the DEMAND RESPONSE half of it, then there is never energy removed from a EV battery, but just more optimum selection of times when to charge. This gives most of the utility benefit of having some control over those crisis peaks, and enough to make it worthwhile to the EV owner who has a little flexibility in charging over the day. And yes, they allowed for overrides. The check the EV owner would get back in the mail each month would be reduced a bit by the number of times he did an override. But still, it is free income to the owner if it matches his drive profile.. IE, parked all day at work MOST of the time with not a lot of business hours driving.. Bob, Wb4APR For a similar reason, I wouldn't buy a Renault Zoe with a leased battery. The fact that Renault can disable my battery remotely makes me really uncomfortable. They say they'll only do so if I don't keep up the lease payments, but who knows what other reason they might cook up, or what kind of errors their accounting department might make? The big media companies love such virtual entertainment as downloaded music, movies, and e-books. This is partly because ancient US laws on owning physical media such as CDs, DVDs, and books - and your rights as an owner of them - don't apply to them. They sell you not the item itself, but just the right to listen, view, or read it. They can control what you do with the item; you're usually not allowed to lend it or give it away, unlike real CDs, DVDs, and books. They can rescind that right if they choose. As I see it (and I am certainly open to correction if I'm wrong), Renault's scheme to retain control of their EVs' batteries, and the idea that BMW might control the charge in an EV, are related sentiments. If you're OK with that, go for it, but it's not for me. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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)
