[RE-wrenches] Cooler Modules

Bill Hoffer sunengser at gmail.com
Wed Sep 10 21:04:02 PDT 2014


Mark

Loaded modules will have hotter cells. I know this from searching for bad
cells with a thermal camera.  At open circuit I could not see a difference,
but short circuit or loaded I could see 20 - 30 C increase in mismatched
cells .

Bill

On Wed, Sep 10, 2014 at 9:43 PM, Mark Frye <markf at berkeleysolar.com> wrote:

> Folks,
>
> Two identical PV modules are mount in an identical fashion and exposed to
> identical irradiance.
>
> One module is open circuit. The other is connected to a load and producing
> power.
>
> Is there a difference in the temperature of the two modules? If so, which
> one is cooler?
>
> Mark Frye
> Berkeley Solar Electric Systems
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at 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
>
>


-- 
William Hoffer
161 SE Fourth Ave
P.O. Box 1823
White Salmon, WA 98672-1823
sunengser at gmail.com <bhoffer at sunergyengineeringservices.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20140910/770b5810/attachment-0002.html>


More information about the RE-wrenches mailing list