[RE-wrenches] LUX to STC conversion?
William Dorsett
wmdorsett at sbcglobal.net
Tue Dec 11 17:18:32 PST 2012
I shoulda knowd that phyxics just aint that simple, and now that youve
sent me the formula, I need to go find out what AM1.5 means on a clear day
in Kansas with a humidity of xx%. My brain gets fuzzier an fuzzier. Thanks
Chris.
Bill Dorsett
Sunwrights
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Chris Mason
Sent: Tuesday, December 11, 2012 10:32 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] LUX to STC conversion?
Do yuo really want Lux?
The formula is 1Lux=0.001496 watts/sq. meter
Module performance is generally rated under standard test conditions (STC):
<http://en.wikipedia.org/wiki/Irradiance> irradiance of 1,000
<http://en.wikipedia.org/wiki/W/m2> W/m², solar
<http://en.wikipedia.org/wiki/Spectrum> spectrum of
<http://en.wikipedia.org/wiki/Airmass> AM 1.5 and module temperature at
25°C.
On Tue, Dec 11, 2012 at 10:02 AM, William Dorsett <wmdorsett at sbcglobal.net>
wrote:
Off the top, can anyone tell me how many lux of sunlight represent 100% of
STC? 1000 watts/sq meter?
Bill Dorsett
Sunwrights
1715 Leavenworth
Manhattan, KS
785/539-1956 <tel:785%2F539-1956> Home/Office
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Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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