[RE-wrenches] insolation v. actual output

[Marco Mangelsdorf]

Yeah, but I'm looking for the equation as to how you get to that 75-80
percent figure.

 

marco

 

Marco

I use 75% as a general rule, it seems to work out well. I've gotten upwards
of 80% on certain enphase & sanyo installations.

 

Mike Nelson

MD Electric & Solar, Inc.

Gualala, Ca. 95445

On Tue, Oct 12, 2010 at 6:17 PM, Marco Mangelsdorf <marco at pvthawaii.com>
wrote:

Could someone please provide me with that generally accepted equation when
it comes to estimating AC output from a PV array versus the STC rating?

 

That is, I'm looking for that equation which estimates the losses due to mod
mismatch, soiling, wire losses, etc., etc.  I've got someone who mistakenly
expects their PV array to put out 90 or more percent of the STC rating.

 

Thanks,

marco

 

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