[RE-wrenches] Irradiance data

[Andrew Truitt]

David - Thanks!  This is great as an average for comparison.  Any thoughts
on where I could get data specifically from 2009 or the last couple of
months?




On Wed, Mar 3, 2010 at 10:52 AM, David Brearley <
david.brearley at solarprofessional.com> wrote:

>  Look for a super comprehensive article on the topic of production
> modeling in the Apr/May issue of SolarPro (SP3.3) by Tarn Yates and Bradley
> Hibberd of Borrego Solar. It includes information on TMY (typical
> meteorological year) data, like that published by NREL here:
>
> http://rredc.nrel.gov/solar/pubs/redbook/
>
> David Brearley, Senior Technical Editor
> *SolarPro* magazine
> NABCEP Certified PV Installer ™
> david.brearley at solarprofessional.com
>
>
>
> On 3/3/10 9:35 AM, "Andrew Truitt" <atruitt at gmail.com> wrote:
>
>
> Is anyone aware of a resource for finding local historical irradiance
> data?  We've had a cloudy winter around the DC Metro area and I would like
> to quantify how far down we are from the average for new customers concerned
> with production.
>
>
> Thanks in advance,
>
> Drew
>
>
>
>
>
>
>
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