[RE-wrenches] Sola-ark cold morning

[Dana Orzel]

Hey Now All Wise ones!

 

An of gird client emailed yesterday that his Solark had been accepting only
350 watts of a 4KW input from the array. The modules are Q-cell 325 watt 2
strings of 7 modules.

 

Sunrise, full sun, no clouds so no edge of cloud effect, negative temps @ -
6˚F, he waited all day with no improvement or change in the charge rate
consistent 350watts input & then same thing next morning. Negative temps &
full sun & 350watts solar input.

 

He turned the Solark off for 10 minutes & then turned it back on & 4KW
charge input returned. The Solark did not turn off or deliver any alarm or
warning.

 

My initial thought was over-voltage spike, we designed for a -25˚F
scenario & 110 PSF snow load. Beefy! 

 

I did not ask if it was windy additionally. Could this contribute to a
colder array temp? I have always been of the impression that wind chill did
not affect metal or glass that it has to do with moisture being driven off.

 

Thoughts & suggestions?

 

 

 

Dana Orzel                              Great Solar Works, Inc. 

C - 208.721.7003                       dana at solarwork.com

Idaho Contractor - # 028765         Idaho PV # 028374

www.greatsolarworks.com <http://www.greatsolarworks.com/>
www.solarwor.com <http://www.solarwor.com>  

"Responsible Technologies for Responsible People since 1988"  

 

P Please consider the environment before printing this email.

 

 

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