Understanding over-paneling.

Snow Belt Solar · Jul 27, 2022

While researching on the PVwatts website for my grid tie build it shows that if I use Iq8 microinverters instead of Iq8+ with my 340 watt panels it will produce 99.7% the amount of electricity. It seems a waste to go with Iq8+ then?

I tried searching over paneling but most results are in regards to string inverters/ batteries. Thanks.

DThames · Jul 27, 2022

Snow Belt Solar said:
While researching on the PVwatts website for my grid tie build it shows that if I use Iq8 microinverters instead of Iq8+ with my 340 watt panels it will produce 99.7% the amount of electricity. It seems a waste to go with Iq8+ then?

I tried searching over paneling but most results are in regards to string inverters/ batteries. Thanks.

I have APsystems QS1 micro inverters. They are rated for 300w per input. As I recall their spec sheet says up to 375w input recommended. So the "over paneling" is defined in the spec, at least on that make/model.

Snow Belt Solar · Jul 27, 2022

What panels are you using with those microinverters?

DThames · Jul 28, 2022

Snow Belt Solar said:
What panels are you using with those microinverters?

I have some Sunpower (I think P17 product family) 340w and 355w that I got from Santan Solar in 2019.

Understanding over-paneling.

Snow Belt Solar

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DThames

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Snow Belt Solar

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