Performance of Large Outback system/Insolation meters [RE-wrenches]

[Jeff Oldham]

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I have to echo Bill's comment about proper readings, I too find it frustrating to read seat-of-pants impressions (I'm plenty guilty too!). I would suggest folks take solid data very soon after the array is installed and put the data in your customers file. I have my installers take basic readings, V & I of each string and log it. I go for the PG&E inspection after things have been out in the sun for a week or so and take the folowing: Cell temp, Insolation, time and date, V & I, array angle, inverter output and grid voltage. This also goes into the customer file, I feel strongly that we need a starting point benchmark for each job from which to judge performance on down the road. I'm talking less than $300 in equipment here, c'mon!

If anyone is going to be at Solar Power 2004 come on by and introduce yourself at booth 22, love to say hi!

-jeff


>From the Solar, Wind and Hydro powered office of Jeff Oldham

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