I have a 12 volt system and can see the amount of volts and amps that the panels on our solar tracker are generating. Because it's a 12 volt system, I've always been calculating the watts by multiplying the amps by 12. But the thought occurred to me that maybe I should be multiplying the actual volts and amps, considering the volts are always higher than 12. What is the most accurate way of making the measurement? Thanks!
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