This discussion reminds me of the microgrids installed in Nepal. Once they had electricity, villagers loaded down their houses with loads they could never have before. Soon the NGO's were searching houses for browned out light bulbs with flashlights. In Nepal they could use fuse wire. Whether it is a fishing camp, a neighborhood system or simply members of the same family, and regardless of the technology, this is a chronic conflict of social responsibility vers "I'll get mine." It will remain an issue with microgrids.
Bill Dorsett -----Original Message----- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark Frye Sent: Saturday, June 06, 2015 8:40 AM To: RE-wrenches Subject: [RE-wrenches] SI/SB MicroGrid - Recovery From Low Battery Shut Off Hi Guys, Just wondering about how a SI/SB microgrid works. If all the PV is connected to SB inverters, what happens if the loads manage to drain the batteries to their low voltage shutdown? Wouldn't the SB stop providing the AC sync so then the SB wouldn't have anything to sync to even if they had power available from the PV? How is this handled? It seems to me you would always want to have some amount of PV DC coupled. Thanks, Mark Frye Berkeley Solar Electric Systems _______________________________________________ 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 _______________________________________________ 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
