Mark, As you know it depends on two things. What the grid voltage is and at what voltage the Enphase inverters stop pushing current (check with enphase, it could actually shut down at lower than 264vac). The grid voltage is the unknown here. If it is 245vac adding a 4% line loss results in 254.8vac at the inverter. If 254vac grid then 264 at the inverters with a 4% loss. We had case where a Sunny Boy was shutting down because of high grid voltage. The utility adjusted their voltage down at the transformer taps. They knew that voltage was high in this neighborhood (256vac), they said that they had been meaning to correct that problem soon anyway. They brought it down to 246vac and no more problems for the SB inverter. Dave Sent via BlackBerry by AT&T
-----Original Message----- From: "Mark Frye" <[email protected]> Sender: [email protected]: Mon, 14 Feb 2011 19:42:11 To: 'RE-wrenches'<[email protected]> Reply-To: RE-wrenches <[email protected]> Subject: [RE-wrenches] Can I handle the voltage drop? _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] 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: [email protected] 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
