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BFL13's avatar
BFL13
Explorer II
Jul 27, 2017

Solar- Series for Higher Voltage vs Parallel Lower Voltage

I keep reading how you do better with the higher voltage in series unless there is shading. With no shading I have switched my three 100w panels back and forth several times (in bulk MPPT that is...
marcsbigfoot20b's avatar
marcsbigfoot20b
Explorer
Jul 28, 2017
I would retest that theory with your panels in parallel on a 30 amp PWM controller......then switch to series and 30amp MPPT controller.

With a clamp on ammeter measure the output of both controllers to battery.

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