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12thgenusa's avatar
12thgenusa
Explorer
Dec 13, 2015

Solar, Ya Gotta have Sun

A month ago, nearly a perfect solar day.
This is from the Solar Radiation Research Laboratory in Golden, Colorado.

8.45 kWH accumulated direct solar radiation for the day.
If you had 2 ea 1 m^2 panels at 15% efficiency, tracking the sun (150w panels) you would have collected 2.5kWh.



Today, not so much. Overcast and snowing much of the day.
Only 10 watts accumulated direct solar radiation for the day.
You would have collected 3 Wh in the same scenario.

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