Hi Drake, Good questions. Yes, the taper charge appears to be working well. I've been to the site a couple of times where loads were low, irradiance was high, and battery SOC was ~90% and the Sunny Boy was just covering the load and a little trickle charge.
I have noticed that the SOC seems to max out around 90 to 92% - that seems to be the case with Sunny Islands in general. I'm not enough of a battery expert to know if this is a good thing or not. I do know that I custom programmed in all the AGM battery parameters and set max voltages. I also disabled equalize mode since I couldn't find any literature from US battery on recommendations for their AGM. August *August Goers* Luminalt Energy Corporation o: 415.641.4000 m: 415.559.1525 www.luminalt.com On Mon, Jul 24, 2017 at 5:36 AM, Drake <[email protected] > wrote: > Are you getting a good taper charge with this system? Are the batteries > reaching a decent state of charge from the AC coupled connection with the > inverter? > > Thanks, > > Drake > > > > At 11:08 AM 7/23/2017, you wrote: > >> August, >> >> Of course the genny itself has its own emission of noise but >> the environment its in certainly will affect its overall "annoyance >> level". Backed up to metal container is a negative, I can't tell from the >> photo if the Kohler is on the side away from most of the public, probably >> don't have to go on, you must have thought of these things....it could have >> its own (partial?)enclosure with some sound deadening qualities. Hondas >> are a little quieter but not that much, hopefully the darn thing doesn't >> have to come on, eh? >> >> Nice set-up. >> >> Bill >> >> Feather River Solar Electric >> Bill Battagin, Owner >> 4291 Nelson St. >> Taylorsville, CA 95983 >> 530.284.7849 >> CA Lic 874049 >> www.frenergy.net >> >> On 7/21/2017 11:39 AM, August Goers wrote: >> >>> All, >>> >>> I thought I'd provide an update on our setup since we've completed the >>> install and commissioning. More or less, the installation went well. We did >>> have one of the US Battery AGM L16 batteries dead on arrival with a bad >>> cell. That bad battery screwed up the state of charge (SOC) calculations in >>> the Sunny Island and made the SOC reading jump from ~ 80% to 19% in just a >>> couple of minutes. It was easy to find the bad battery - all the batteries >>> were about 6.5 v with the bad battery reading about 4.5 v. We pulled that >>> battery out of the string for warranty replacement and are currently >>> running it with seven batteries at 42 v nominal. It's cool that the Sunny >>> Island allows for this. Other than that, the frequency shift derate between >>> the Sunny Island and Sunny Boy is working perfectly and the system has more >>> than enough capacity to run the loads during the summer months. I'd say the >>> Kohler generator is the nice unit although it is a little loud for this >>> application. If I had to do this portable application again, I'd probably >>> just go with the Honda 7000. >>> >>> Thanks for your help! August >>> >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> >> >> _______________________________________________ >> 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/re >> [email protected]/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] > g/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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