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howardwheeler's avatar
howardwheeler
Explorer
Apr 15, 2017

What happens when a solar panel makes too many amps?

What happens when panels produce on occasion more amps than the controller is rated for? For instance, in my case I have a 60 amp Morningstar MPPT controller but my three 315 watt panels could under i...
time2roll's avatar
time2roll
Nomad
Apr 15, 2017
howardwheeler wrote:
I know it's safe. I guess what I meant was where does the excess power go?
Same place the power goes when the panel is not connected to anything.
The excess electric power is not actually produced. As the amps are throttled back the voltage rises to approach Voc and efficiency drops off.

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