Forum Discussion
MrWizard
Dec 28, 2014Moderator
no temp doesn't affect the mppt controller
high temp reduces the output of the solar panel
reduced output means there is less power for the mppt to harvest
but it will produce just as much as the pwm controller NOT less
there is just less overhead to be harvested
high temp reduces the output of the solar panel
reduced output means there is less power for the mppt to harvest
but it will produce just as much as the pwm controller NOT less
there is just less overhead to be harvested
Salvo wrote:
No, nothing significant is wasted. You forgot one key element to the equation: TEMPERATURE. It kills mppt performance. Go read that white paper again. It's very good.
The 36-cell panel was specifically designed for pwm use. Very little power is wasted at normal operating temperature. That's why there's only a 5 to 10% performance gain of mppt over pwm.MrWizard wrote:
7amps at 14v is 98 watts, with out MPPT you loose the rest of the power, it is simply not converted... it is chopped off and eliminated... wasted ..not used
PWM is fine for panels with a 16v output, but wastes power on larger panels
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