[RE-wrenches] mix-n-match Unisolar

[Sky Sims]

Reality tends to agree with the EE. But opinion pushes the other way.

 

Sky Sims

Ecological Systems

http://www.ecologicalsystems.biz

220 County Road 522

Manalapan, NJ 07726

732-462-3858  toll free)866-759-7652  fax)732-462-3962

 

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Geoff Greenfield
Sent: Thursday, October 30, 2008 4:31 PM
To: RE-wrenches
Cc: Randy
Subject: [RE-wrenches] mix-n-match Unisolar

 

I thought I knew the answer to this one, but wanted to run it by the list.

 

We are responding to a bid where the electrical engineer has designed a system with different sized Uni-solar laminates in some series strings paralelled with consistant full size strings.  (this was done to work around skylights etc).

 

We suggested that this was a poor design and will lead to "least common denomenator" performance, exacerbated by MPPT confusion.  The EE responded that "the bypass diodes allow for this".

 

Any experience with this in practice?

For a brighter energy future,

Geoff Greenfield
Founder and CEO
Third Sun Solar & Wind Power Ltd.
340 West State Street, Unit 25
Athens, OH 45701

740.597.3111     Fax 740.597.1548
www.Third-Sun.com

Clean Energy - Expertly Installed



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