Hello, Right now I am in the process of monitoring an array and individual modules with the Solmetric PV analyzer. I am also testing this array with and without optimizers. Duplicating conditions for the tests can be difficult, but I can share my IV cure traces and electrical readings when I'm done. It will be a short term test (couple weeks). But should be interesting.
Jesse Sent from my iPhone On May 4, 2011, at 8:54 AM, "Joel Davidson" <joel.david...@sbcglobal.net> wrote: > Wrenches, > > A few years ago, we compared conventional and MPPT charge controllers and > found power production improvement in only in unique conditions and rarely > over 15%. Now Microinverter and DC maximizer companies are claiming "as much > as 25%" increased electricity production and a booming market. See > http://www.interpv.net/market/market_view.asp?idx=401&code=401&part_code=01 > > I've been comparing grid-connected microinverters since 1994 when Henk came > out with his OK4U and am not impressed in full-sun (no shade) comparisons. In > 2005, I compared a side-by-side 200 kW system with two 100 kW Xantrex > inverters with a 200 kW system with 74 SMA inverters and saw no difference in > kW or kWh. > > Have any wrenches made side-by-side comparisons? Are the claimed improvements > hype or real? > > Joel Davidson > _______________________________________________ > 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
