[Power] Good day for a solar panel test

Nicholas independentcommercial at gmail.com
Tue Jul 17 03:35:27 EDT 2012


Some readings from the panel.

Hello,

These results are rounded and taken from two readings in Winter
afternoon sun. I used power resistors to get the results, the power
resistors are 10ohm 25w each. The sun was fairly regular. The most
regular we've had for over a week. The voltage readings were taken
from calculating the v drop from the resistor values and measuring the
current with a Fluke 111 meter. It's hard to say how much more this
panel will produce, but going from other panels around under the same
light these results are at about 80% full output as the sun was fairly
low in the sky.

5ohm   1000mA   5v  5w
10ohm   900mA 10v  8.1w
20ohm   650mA 13v  8.45w
30ohm   500mA 15v  7.5w
40ohm   380mA 15.2v 5.78w
50ohm   300mA 15v  4.5w

Kind Regards, Nicholas


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