Larry:
I failed to paste the link in one email. I followed up with the link below. You may have missed the resend: http://www.oesoptimizedenergystorage.com/ What I found is a Sunny Island mini-grid system behaving oddly. The generator, when started with the SI, would run for a few minutes and then shut down. Further investigation revealed that the SIs were indicating that the inverters were sending lots of power back to the generator. I don't know if this was actually the case, nor can I grasp how this could happen. Fortunately I reached an off-grid tech at SMA that I trust (among the many at SMA I do not, please don't share this email.) and we were able to resolve the issue. I am not sure what we did but I suspect that simply rebooting the Sunny Islands was the cure. We did little to evaluate the batteries. They did seem to hold rock solid under loads. I am not convinced, however, that these batteries are right for off-grid. The internal battery management system will allow them to disconnect under surge loads, just when you need your batteries to stay connected. I will be conversing with the manufacturer to learn more about them. William Gradient Cap_mini Lic 773985 <http://www.millersolar.com/> millersolar.com 805-438-5600 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Starlight Solar Power Systems Sent: Wednesday, September 17, 2014 4:06 PM To: RE-wrenches Subject: Re: [RE-wrenches] LiFePo4 William, What did you find at the site? I did not see any attachment or link in your email so let me know what you are working on. Do you have any questions about the batteries/system? Larry On Sep 16, 2014, at 12:31 AM, William Miller <will...@millersolar.com> wrote: Friends: Here are the specific batteries I am looking at: William <image002.jpg> Lic 773985 millersolar.com <http://www.millersolar.com/> 805-438-5600
_______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org 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-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
