I see I forgot to mention that I have 210W modules on my home that were producing the 215W to 223W.
William, Your question is a good one. I've wanted to study this, but haven't had a chance. I will look into it. Jesse Sent from my iPhone On Jan 27, 2013, at 10:05 PM, William Miller <will...@millersolar.com> wrote: > Jesse: > > Do you have any way to compare the total harvest for the day for a given > module in a "clipping" scenario versus an unclipping? The question I want to > answer is: Do we improve production enough on the shoulders of the clip to > justify the loss on the peak? > > Thanks, > > William Miller > > > At 06:25 PM 1/27/2013, you wrote: >> A while back (3 years)I installed a system (bid spec) for a school that used >> 215W RECs and D380s on a dual axis tracker. With the ability to monitor the >> array, I see constant clipping. The modules will usually produce 199Ws >> regularly. A few days ago we had temps of -34F and clear skies. My array >> at home had one of its best days this winter. I have Tigos on so I can >> monitor watts, current, temp and voltage. I was seeing anywhere from 215W to >> 223W from my modules between 11:30am and 1pm. The modules on the tracker >> were still producing 199W. I didn't get an irradiance reading that day but >> my Tigos showed above IMP readings and way above VMP reading that day. >> >> I've only been doing this for 6 years, so I don't have the experience that >> some people on this list have, but it seems foolish to me to waste that >> production. It's kinda site specific, but where I live the cold temps and >> snow reflection seem like something we should be utilizing. > > _______________________________________________ > 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
