MM,
It is an option worth exploiting in the cases where it is possible. I got enough feedback, to say that it is valid in all EU countries with off peak tariffs, which are almost all. The picture is not clear in US, other than that in some states it is a valid option. Disbursed storage, as in this case, also have some real benefits for the producers. It shifts some investment capital to the users and is also positive in balancing the grid, which all is good "ready for use" applications.. Hakan At 16:29 13/03/2004, you wrote: > >The reason why I ask, is to know what could be gained by only a storage > >solution, by utilizing rate differences. If you have low rate prices, they > >are normally 50-60% lower than normal rates. With a battery storage > >solution, would it be feasible to charge during discounted time and that > >way reduce over all electricity costs? > >In addition to what I mentioned in email: > > >As I thought about it some more, I understood this better, and this >idea intruiged me. Sort of like "economic load leveling" for the >home... running the storge in reverse, getting it for storage partly >from the grid instead of from harvesting home-based solar or wind. > > >The base-level quoted to me for my house was a very rough estimate of >$4500 for the least expensive form of Lead-Based battery. My home >uses about 20 kWh per day at present, with no other energy use (I have >not hooked up propane) outside of power to get the water to me from >the city well and I guess gasoline for my car. I think this was for >about 60 kWh (3 days) of total storage capability, but it's hard to >say. I am not buying any storage at present because I'm not going >off-grid, and so these quick-estimates were just for my curiousity... >hence some of my spotty recollection. > >The place that quoted me this also sold two other more-expensive >lead-based battery chemistries, Gel-Cells and AGM. They did not sell >non-Lead-Based chemistries (NiCD, NiMH, etc.). > >The AGM would be about 3x more expensive with GEl-Cell somewhere in >between the AGM and the base-level. Battery life of base-level >chemistry was 5-7 years (I think?) and of AGM was "up to" 20 years? >but maybe about 15? There was some remark, also, about Gel-Cells not >being as suited to load leveling. This was a quick-conversation that >was not on-topic for my present purposes, so that's basically why I'm >having trouble remembering some of the details. > >Anyway, your idea is an intruiging one. > >As a general rule the saleswoman volunteered to me that this Utility >didn't mind me generating some of my PV and being grid-tied as long as >I didn't try to go into competition with them. So, the deals around >here give me a very good price for my electricity (theoretically... >very few people have gone with PV) up until I satisfy all my house's >needs and the net metering is at zero). From there the deal is for >nothing. They won't allow me to sell them more kWh than I buy from >them, or something like that. So, with your idea, this might >encourage people to draw from the utility rather than send Electricity >to it, so maybe they'd encourage it? Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
