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Author Topic: what angle is best?  (Read 2353 times)

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copperhead1971

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what angle is best?
« on: April 12, 2013, 10:51:18 PM »
what angle is best for solar panels at 43.025556,-81.277778 log and lat just NNE of Detroit MI... thanks for any replies 
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bart

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Re: what angle is best?
« Reply #1 on: April 12, 2013, 11:14:41 PM »
    Put "determine solar panel position" in a google search and pick your flavor.
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gww

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Re: what angle is best?
« Reply #2 on: April 13, 2013, 05:13:40 AM »
Go to the web site "PV watts" and enter several angles and compare the differances.
gww
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XOKE

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Re: what angle is best?
« Reply #3 on: April 13, 2013, 05:53:18 AM »
Hi,

check this site

http://www.macslab.com/optsolar.html

regards

Xoke
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copperhead1971

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Re: what angle is best?
« Reply #4 on: April 13, 2013, 08:51:13 AM »
thanks for the info , the only one that I couldn't get to work was the "pvwatts" ...
The solar calculator was the easiest , but the Optimum Tilt of Solar Panels was a good read too.
Thanks again...
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XeonPony

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Re: what angle is best?
« Reply #5 on: April 13, 2013, 12:16:18 PM »
Dam all this time all I used was a multimeter and my hand, I tell you all these high tech gadgets going to wreck the brain! lol
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hydrosun

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Re: what angle is best?
« Reply #6 on: April 13, 2013, 03:27:33 PM »
On grid or off grid. If off grid you may want to optimize for winter when the output is lowest and demand for power for inside activities is highest. If you are on grid you may optimize for summer when there are the most cloudless  and longest days to get the most yearly power. If you have trees to the east and west you may tilt closer to the suns angle at noon instead of the shallower angle if you get sun from the sides.
So you take the optimal angles from the charts and adjust for your site and usage. Most of the time it only makes a small percentage difference.
Chris
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Mary B

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Re: what angle is best?
« Reply #7 on: April 14, 2013, 03:36:15 PM »
43.025556 as a compromise between winter/summer.
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