[RE-wrenches] Sunpower Performance Warranty Claim

[scot.arey at solarcentex.com]

I agree that the time to process warranty the module to a manufacturer's
desires is cost-prohibitive. Of all the component's we use, this warranty
almost seems the least valuable for this very reason. We stopped one case
for this very reason as I didn't want to do a PhD dissertation for a single
module.

 

Was surprised by one manufacturer who advised us to read that bypass diodes
were not an warranty defect even though the module was making half power.

 

Good luck, look forward to hearing how your case goes.

 

Scot Arey

Solar CenTex

 

From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of
Daniel Young via RE-wrenches
Sent: Tuesday, November 22, 2022 12:34 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Cc: Daniel Young <danny at sesre.com>
Subject: [RE-wrenches] Sunpower Performance Warranty Claim

 

Hello Wrenches,

 

Any experience successfully submitting a performance warranty claim with
SunPower on their solar modules? Right now, in order to Provide what they
are asking for, we will likely spend more time/money testing to their
satisfaction than it would cost for us to likely buy new modules and just
replace the array.

 

Anybody have a similar experience? Or suggestions on how to deal with
Sunpower?

 

Don't want to bog this down with all the details but suffice to say we I-V
traced the array at the string level as a sanity check (7-10 % lower than
anticipated performance), and a random selection of individual modules as
well and we are seeing roughly 8% lower performance than expected given the
array age and listed performance warranty. (STC corrected I-V trace is 8%
lower than it should be for an 8 year old solar module from SunPower)

 

With Regards,

 

--

 

Danny Young

NABCEP PV Installation Professional #031508-90

Engineering Team Lead
Solar Energy Solutions

Lexington | Louisville | Bloomington | Cincinnati | Evansville |
Indianapolis

513-448-5176 (mobile)

877-312-7456 (Main Office)

 <mailto:danny at sesre.com> danny at sesre.com

 

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