puzzling performance [RE-wrenches]

Jeff Clearwater, Village Power Design clrwater at earthlink.net
Mon Jan 5 12:01:45 PST 2004


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Hi Chris,

Haven't downloaded the December numbers yet - that 1800 was Sept to Sept.

But do remember this is single axis horizonatal tracking so sun 
hours/day of 5.35 would be pretty conservative for a tracking array.

Best,

Jeff C.

>Jeff Clearwater, Village Power Design wrote:
>>  I had predicted 2050 KWh/month for the Glen Ivy (Corona - near
>>  Riverside) 11.2 KW (STC) plant (has single axis tracking).  In
>>  actuality we harvested just under 1800 KWh/month. 
>
>So that works out to:
>
>1800 kWH per month / 30 days / 11.2 kW = 5.35 peak sun hours
>
>Pretty good performance considering were using the STC rating for the PV
>array.  I guess it never does rain in southern california...
>
>What was the december performance like? 
>
>Christopher Freitas
>OutBack Power Systems, Inc.
>cfreitas @ outbackpower.com 
>www.outbackpower.com
>Arlington WA USA
>Tel 360 435 6030 
>
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-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village
http://www.villagepower.com
gosolar at villagepower.com

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