Can you say something more about the system? Is there a PV component? What is the size and type of the battery bank?
The thing I am beginning to understand about propane generators is that there is a problem with Outback charging re: partial load efficiency. If the generator/chargers are sized to give a good C/10 bulk charge rate, then they will be running well below 50% load when they are providing a desirable absorption phase current. That's extended absorption run times at poor generator efficiencies. This also plays into having a generator that is sized for full AC loads and full charger currents. If you design for this case, but do not have large AC loads during charging, you will be well down into the 25% load on the gererator, very inefficient with propane. I have had very good success with my Kohler 30kw REGZ 2-wire start propane generator in a lower elevation, California foothills location. What exactly do you mean by harsh environment? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Wednesday, July 21, 2010 11:21 AM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Propane Generator, Dual Outback Inverters I'm looking for experiences/recommendations for a 15-20kW propane generator. It would be going in an off-grid system with dual Outback 3600W inverter/chargers. The excess capacity would power larger loads than the inverters can handle. Fuel economy and harsh environment performance are the top priorities (along with the ever important $). Jason Szumlanski Fafco Solar _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org 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: RE-wrenches@lists.re-wrenches.org 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
