Personally, on grid or off, I like battery powered clocks. One 2 sec outage, and the clock gets reset. I tend to use the clock on my cell phone and computer mostly (automatic updates), My battery powered weather station even has a clock that is linked to the atomic clock system. I've actually had more trouble with electric clocks now that I'm on grid! ( the clock on the stove never matches the clock on the coffee maker......) BTW, I love your "times have changed" comment.....and I otherwise agree with your assessment of off grid today: sleep mode is soo 20th century.
Ray On Apr 6, 2011, at 8:09 AM, Allan Sindelar wrote: > Todd, > Come on now! Times have changed. People expect more from their systems now, > and lower module costs make that possible. It's not the electric clocks per > se - it's everything else that we come to want on all the time, that happens > to also have a clock in it. I don't know anyone any more with a modern system > whose inverter ever goes into sleep mode. > > With three teenagers who have grown up in the digital age, rural wireless, > all the electronics, my off-grid home has about an 80W continuous tare load. > Maybe ten years ago (kids were small), we had no tare in the winter, but even > then it never went to sleep. And we let all or most of the phantom loads stay > on during the rest of the year when we have an excess of PV energy. > Allan > > Allan Sindelar > al...@positiveenergysolar.com > NABCEP Certified Photovoltaic Installer > NABCEP Certified Technical Sales Professional > New Mexico EE98J Journeyman Electrician > Positive Energy, Inc. > 3201 Calle Marie > Santa Fe, New Mexico 87507 > 505 424-1112 > www.positiveenergysolar.com > > > > > On 4/4/2011 8:46 PM, toddc...@finestplanet.com wrote: >> >> I wasn't going to say anything, but electric clocks off-grid? really??? >> >> Todd >> >> >> >> On Monday, April 4, 2011 6:20pm, "Kent Osterberg" <k...@coveoregon.com> said: >> >> > Kris, >> > >> > Even with generators using an electronic governor, the frequency changes >> > with load. Also while inverters are stable their frequency is not as >> > accurate as utility power. Clocks that use the ac frequency as the time >> > standard will not work reliably when powered with off-grid power. Such >> > should be disclosed in any contract to install an off-grid power system. >> > >> > Kent Osterberg >> > Blue Mountain Solar >> > >> > >> > Kristopher Schmid wrote: >> > > I have an off-grid client who tells me that his clocks lose about 1 >> > > minute >> > > per hour while he is running his backup generator. Has anyone seen this >> > > before? Do clocks use the zero crossing on a 60Hz wave for keeping time >> > > and >> > > could a frequency discrepency in the generator cause this? >> > > >> > > My thanks to the brain trust... >> > > >> > > Kris >> > > >> > > Legacy Solar, LLC >> > > 864 Clam Falls Trail >> > > Frederic, WI 54837 >> > > 715-653-4295 >> > > sol...@legacysolar.com >> > > www.legacysolar.com >> > > >> > > _______________________________________________ >> > > List sponsored by Home Power magazine >> > > >> > > List Address: RE-wrenches@lists.re-wrenches.org >> > > >> > > Options & settings: >> > > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> > > >> > > List-Archive: >> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> > > >> > > List rules & etiquette: >> > > www.re-wrenches.org/etiquette.htm >> > > >> > > Check out participant bios: >> > > www.members.re-wrenches.org >> > > >> > > >> > > >> > > >> > _______________________________________________ >> > List sponsored by Home Power magazine >> > >> > List Address: RE-wrenches@lists.re-wrenches.org >> > >> > Options & settings: >> > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> > >> > List-Archive: >> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> > >> > List rules & etiquette: >> > www.re-wrenches.org/etiquette.htm >> > >> > Check out participant bios: >> > www.members.re-wrenches.org >> > >> > >> >> >> >> Sent from Finest Planet WebMail. >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Options & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
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