Sunnyvale, CA Photovoltaic Performance Predictor

Under Development

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This highly abstracted Sandia Lab model will give us a good estimate of the expected output of your array, under the current environmental condition.
φ - incidence angle between the array and the position of the sun.
S - irradiance.
D - panel efficiency, usually between 14 to 18 percent.
T - temperature of the panel.
Area - total area of the array.

Site/Array Information
Date GMT Fri Sep 03 20:54:24 GMT 2010
Date (local) Fri Sep 03 13:54:24 PDT 2010
City Sunnyvale, CA
Latitude 37° 24′ 22″ N
Longitude 122° 01′ 13″ W
Panel Tilt 0° 00′ 00″
Panel Azimuth 180° 00′ 00″
Cell Temp 31.02°C (87.84°F)
Number Panels 24
Panel Mitsubishi PV-MF 185 TD4
Site Area 29.52 M2
Site Efficiency 0.790
Panel Efficiency 0.150
Sun Position
Azimuth 202° 28′ 48″
Incidence Angle 31° 54′ 04″
Irradiance 800
Output 2304.31 Watts
  


Popt. = S*Cos(Φ)*D*Area*(1-(0.005*(T-25)))

PV Performance Lookup Table for Φ of 31° 54′ 04″

200 W/M2 500 W/M2 800 W/M2 1100 W/M2
0.0°C 668.20 1670.50 2672.80 3675.09
20.0°C 608.80 1522.01 2435.21 3348.42
30.0°C 579.11 1447.76 2316.42 3185.08
40.0°C 549.41 1373.52 2197.63 3021.74
50.0°C 519.71 1299.28 2078.84 2858.41




Click to display ideal performance parameters for benchmarking your system - a visual analysis.

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1153 Bordeaux Dr # 199
Sunnyvale, Ca 94089

Phone: 408-734-2907
Emergency: 408-306-5803