How much opportunity is there really for fuel savings in a residential, back-up power application anyway?
Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 National Electrical Code® CMP-4 Member (520) 204-6639 Solar Energy International http://www.solarenergy.org SEI Professional Services http://www.seisolarpros.com On Wed, Jun 2, 2021 at 3:09 PM Dave Angelini Offgrid Solar < [email protected]> wrote: > You may have to educate these people about what happens once the sun goes > down. It does sound like a good way damage electronics (loads) if not done > perfectly! > > > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/> > e-mail [email protected] <[email protected]> > text 209 813 0060* > > On Wed, 2 Jun 2021 16:58:00 -0400, Jason Szumlanski < > [email protected]> wrote: > > Maybe it's time for a change of thinking in the resi market. People who > consider PV and can't have it used for backup get disenfranchised quickly. > > On Wed, Jun 2, 2021, 3:52 PM Jeff Clearwater <[email protected]> > wrote: > >> As Jay says SMA has the Fuel Save Controller for large PV to Diesel >> hybrid systems - with or without batteries. >> >> >> https://www.sma.de/en/industrial-systems/fuel-save-solution-for-hybrid-systems.html >> >> So no reason it can't be done on a smaller scale. >> >> Best, >> >> Jeff >> Village Power Design >> >> Jason Szumlanski <[email protected]> >> June 1, 2021 at 3:51 AM >> I'm wondering why this isn't more common and better documented. We are >> getting a lot of requests for solar to reduce generator fuel usage with PV >> in smaller residential settings. >> >> I just came across this solution from Fronius: >> https://www.fronius.com/en/solar-energy/installers-partners/products-solutions/offgrid-backup/pv-genset-saving-fuels-with-photovoltaics. >> <https://mailtrack.io/trace/link/7c491c267a60aecbda5c36da8e23e64a94576133?url=https%3A%2F%2Fwww.fronius.com%2Fen%2Fsolar-energy%2Finstallers-partners%2Fproducts-solutions%2Foffgrid-backup%2Fpv-genset-saving-fuels-with-photovoltaics.&userId=1613865&signature=86c145b44a7c38ec> >> >> Jason Szumlanski >> Florida Solar Design Group >> >> >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> Jay <[email protected]> >> May 25, 2021 at 4:16 PM >> Installing PV/inverters to a generator is a common practice. >> One must make sure you don't ever have more PV/inverter than load to >> prevent either generator damage or shut down. >> >> I worked on a big project that did actually shut the generator down, it >> tried to run backwards as the PV power exceeded the load. Didn't damage the >> generator, 125kw. >> >> The main reason is to reduce fuel burn, but how how it is reduced has a >> number of variables: age, fuel type, size, where in the power band it's >> operating , and if a larger newer diesel ( they have a very different fuel >> burn curve than older ones are which works very well with solar). >> >> SMA and others have full packages that communicate with the generator for >> really large systems like mines etc. >> >> Not knowing the size/type of the PV/generator and the variables, hard to >> say if there would be much fuel savings. >> >> Jay >> >> >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> Jerry Shafer <[email protected]> >> May 25, 2021 at 9:28 AM >> Not kidding, but not in reference of wildfires either. Installing >> inverters directly connected to the gennys is in the past lead to smoke. >> Jerry >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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