[RE-wrenches] insolation v. actual output

[Mike Nelson]

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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