ETO Inspection WAS: PV Powered Inverter Efficiency [RE-wrenches]

[Bill Brooks]

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Bill,

The correct term you are looking for is irradiance--that is the
instantaneous solar power. I know that one of the Oregon inspectors uses a
handheld Licor pyranometer. This is nice but pricey with the digital
interface (about $600). A much cheaper, but not as good sensor is the
Daystar Solar Meter for about $135. The check is done in the plane of the
array. This is complicated with multiple array planes, but a separate
measurement needs to be made for each plane.

Insolation and irradiation are synonymous terms for solar energy.
Irradiation is the term the international community is using instead of
insolation, although I personally like insolation better.

Bill.


-----Original Message-----
From: Bill Loesch, Saint Louis Solar [mailto:bill_loesch at compuserve.com] 
Sent: Saturday, January 08, 2005 3:59 AM
To: INTERNET:RE-wrenches at topica.com
Subject: ETO Inspection WAS: PV Powered Inverter Efficiency [RE-wrenches]
Bob,

What is involved with an irradiation check?

Thanks, Bill Loesch, Solar 1 - Saint Louis Solar, tel/fax 314 631 1094

Message text written by bob-O, INTERNET:RE-wrenches at topica.com
>
Hiya Mo,
The Energy Trust of Oregon (ETO) distributes the public benefits 
funds. They have a number of inspectors across the state who are 
experienced and trained in PV. In addition to rechecking the Code 
aspects of the installation (and catching stuff that the county 
inspector misses), they do insolation, irradiation, temperature, 
voltage and current output checks. ****snip****

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