Panel angle : Solar Panels

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Panel angle

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Mikey D

Post subject: Panel angle

Posted: Wed Aug 23, 2006 5:38 pm GMT ErdGMT

Minnow

Joined: Sat Nov 26, 2005 6:47 pm GMT EthGMT
Posts: 17

I live near phoenix (33 deg lat) and have a 4/12 pitch roof that faces due south (yea!) The pitch is around 18 degrees. If I flat mount the panels to the roof I'll be out 15 degrees or so from optmum. Is this OK or should I raise the rack to get em at the optimum angle. How much power will I lose if it is off by 15 degrees?

Thanks again!

Mikey

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Solar Guppy

Post subject:

Posted: Wed Aug 23, 2006 5:46 pm GMT ErdGMT

Red Cobra Delta Guppy

Joined: Sun Jun 02, 2002 1:01 am GMT EndGMT
Posts: 1159
Location: Lakeland Florida

very little , as you will be closer to the optimum angle for the summer months, which the days are the longest meaning more power generation

maybe a 5-10% hit for winter months, but percentage wise you will be fine assuming this is for gridtie

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