Thread: Ben's Garage
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Old 03-01-17, 04:37 PM   #98
MN Renovator
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"Enphase has a big write up on this as a system with ~10% clipping outproduces by 10-20% more power than a system perfectly matched."

How? Say a panel with a M215, which you said is capable of 230 watts output, is producing 255 watts and clipping at 230 watts. You are producing 90% of the power. Where are you making up for the loss? Do the Enphase micros lose significant efficiency at lower power inputs with the higher output models or do the higher output models no turn on until a higher input is available than the lower input models?

I understand the cost efficiency calculations of inverter undersizing, but usually output doesn't change enough to say that the inverters would produce more power when put in a position for frequent clipping, not to mention 10-20% more power, I don't see how unless there is some sort of deficiency in the larger Enphase inverters that I'm not aware of.
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