On May 21, 2010, at 9:47:59 AM, i2p <i...@aol.com> wrote:
From: i2p <i...@aol.com>
Subject: Re: [RE-wrenches] Two strings of Different Orientation
Date: May 21, 2010 9:47:59 AM PDT
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
On May 20, 2010, at 7:11:45 PM, "Bill Brooks" <billbroo...@yahoo.com>
wrote:
Maybe
it is a pipe dream, but I would like to think that designers,
engineers, and
knowledgeable installers will one day be able to accurately understand
the
irradiance and temperature impacts on I-V curves so that manufacturers
will
be unable to use inaccurate information to sell their wares. Call me
crazy.
Amen Bill,
I just installed a system very similiar , SE array paired with SW
array. Performance is good and I will be monitoring over the next year
to gain kwh performance data. But generally , as long as the strings
are equal, modest mismatch problems are minimal.
my two cents,
Don L oweburg
_______________________________________________
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
To clarify, I am talking about modest array orientation mismatch for
identical strings sharing a common single inverter input. Marv's point
about cell temp vs ambient is a good one and does complicate the
analysis a bit.
Don Loweburg
_______________________________________________
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
