Tracker efficiencies, etc. [RE-wrenches]

[hugh piggott]

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At 3:21 pm -0600 24/3/02, John Raynes wrote:
>What was surprising though, was his data showed that departing from 
>optimum tilt, or azimuth (departure from true south), up to +/- 15% 
>or so for fixed arrays, has little effect on total daily KWh.

An error of 10 degrees in the angle of the module, relative to the 
sun, will only result in 1.5% loss of solar irradiance.  At 15 
degrees it's 3.5% loss.


-- 
Hugh

home
http://www.scoraigwind.co.uk/

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