[RE-wrenches] SW 325 modules - experience?

[Daniel Young]

I can’t vouch specifically for the Thai modules, but we also like SW a lot. They used to have more flimsy frames (30mm only I think, which did not allow them to be used for some racking) The new line has thicker 33mm box frames that allow them to go most places, using most racking systems with our lower snow loads (relative to AK at least).

 

I’d say though, all things being equal, in Alaska I’d be reluctant to use a 72cell module due to the extreme snow loads, or if I did, I imagine I’d use a 3-rail mounting system. Usually the 72cell modules have a slightly lower load rating due to their larger size using the same frame thickness. Solarworld lists the allowable loads (-loads for wind, + loads for snow plus wind) using several different mounting arrangements, I’d at least check that out using your knowledge of local snow loads. There are stronger framed 72cell modules out there that’s for sure (Suniva, Trina, Canadian Solar, I’m sure there are more).

 

Just curious, 8kW of PV, and a 10kW inverter? Are you planning on future expansion? If not, we usually would use a SE7600US on that size and then the client has the option to add batteries in the future, as the SE7600 is the only inverter they currently plan to make compatible with the Tesla Power Wall, and other similar battery systems.

 

With Regards,

 

Daniel Young, 

NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Greg
Sent: Monday, February 22, 2016 2:30 PM
To: re-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] SW 325 modules - experience?

 

Esteemed Wrenches,

Looking at installing an 8 kW system with Solarworld SW325 monos.  Made in Thailand.  I like Solarworld but no experience with their off shore manufacturing or with anything this large.   Main concern is quality and ruggedness of the frame.  Grateful for any feedback from someone who's installed them.  Pros/cons.

Would be using 10kW SolarEdge inverter and the 400 Watt maximizers.

Thanks!

Greg Egan
Remote Power Inc.
Fairbanks, AK

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