De-rating the 230w
I hauled the 230w Schottpoly out to see if I could tone down the voltage by turning it or partially shading it. I found that to get the Voc down to 32v by turning it, I had to turn it 90 degrees to...
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I'd be happy to do it to the Canadian solar 220w as long as it was reversible. I am assuming it would just be moving the wires around in the junction box. That's going to drop the Voc of that panel down to 17v or so in bright light. Will that be enough for bucking? Would it even convert the panel for use as a PWM system?
On edit, neither easy or reversible. Too bad too because it accrued to me it could be a way to mate a cheap PWM controller to a cheap 24v panel. Halving the Voc would mean halving the working voltage too, right? That would be dropping below 15v for the 220w.
On edit, neither easy or reversible. Too bad too because it accrued to me it could be a way to mate a cheap PWM controller to a cheap 24v panel. Halving the Voc would mean halving the working voltage too, right? That would be dropping below 15v for the 220w.
