Tested my new Solar Panel today
Purchased a NewPowa 150 Watt 12 volt panel on Amazon for 159.00 figuring that all the talk about raising tariffs mean prices will be going up soon. It was shipped for free and came well packaged and p...
Forum Discussion
Isc of 9.17 on a 150w panel is fairly low-- "normal" might be more like 9.46, so I am suspecting your panel has a higher Voc. Some panels have near 23 instead of near 22, so their Iscs are lower.
You won't see more than the Isc of the panel except briefly with occasional cloud edge effect. Or if it is really cold out. Your controller will be ok.
Count on getting less than rated Isc amps when the panel is mounted flat, like on your roof, rather than tilted and aimed at the sun as when used as a portable panel. So the controller will have even more margin.
If the PWM controller ever went over 10 amps, it would not fry right away. It takes a fair time to heat up and eventually fry.
You won't see more than the Isc of the panel except briefly with occasional cloud edge effect. Or if it is really cold out. Your controller will be ok.
Count on getting less than rated Isc amps when the panel is mounted flat, like on your roof, rather than tilted and aimed at the sun as when used as a portable panel. So the controller will have even more margin.
If the PWM controller ever went over 10 amps, it would not fry right away. It takes a fair time to heat up and eventually fry.
