The things people spend money on and the reasons are so varied that dollar analysis is just part of the decision.
It can be almost priceless to stay in your home after the utility goes off during a wildfire. Keeping the smoke out, the cool air inside, and not having to go to a shelter or motel are often tipping points. Earthquakes, named windstorms and widespread power outages all add in the decision. At the minimum, a propane or natural gas generator with a month+ of fuel supply. Towns that are evacuated often shut down the utility and then all the gas stations shut down. I could go on but if a client wants to be able to stay in their home, it is pretty easy these days. Add in the SGIP and Federal credits, and for some it is a no brainer! Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail [email protected] text 209 813 0060 > Hi Hilton, > > We've done the math for our installed cost on the Powerwall 2. Certainly, > it wouldn't make sense to purchase it just for energy savings alone with > current California residential electricity tariffs. However, most folks > are > buying it primarily for backup purposes and then a little bit of utility > savings is just icing on the cake or what storage folks are calling > "stacked benefits." The SGIP for many of our clients is over $5k per > Powerwall (now a little lower) and many clients are pairing with PV and > taking the 30% Fed tax credit. All in all, it is a very good deal. > > August > > On Tue, Feb 13, 2018 at 3:35 PM, Hilton Dier <[email protected]> wrote: > >> Has anyone calculated a lifetime cost per stored and delivered kWh for >> any >> of these lithium battery systems? >> >> From the rough numbers Iâve come up with in the past it seems like >> daily >> cycling to avoid grid use would be a dead loss. The capital cost vs >> capacity and cycle life doesnât add up. >> >> Also, I know mentioning this is out of line per list etiquette, but >> could >> people refrain from including 20 preceding messages in their posts? I >> tend >> to read this on my phone and my scrolling finger is getting shorter. >> Thanks! >> >> Hilton >> >> Hilton Dier III >> Renewable Energy Design >> Missisquoi River Hydro LLC >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/[email protected]. >> org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail [email protected] text 209 813 0060 _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
