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Solar panel optimum mounting angle

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Shonver:
Is there an online guide or utility to determine what is the optimum fixed angle for a solar panel installation?

kinosfronimos:
Due north or 0

Just joking, I presume you mean angle from the horizontal...
That would depend on your latitude.
This is as the sun moves from directly overhead in high summer, to more oblique in the winter, the degree of which is dependent on latitude.
What the optimum angle between those the summer and winter angles are, I don't know.
Although I expect that the pitch of a normal roof if fine.
Facing due north (in the S hemisphere) is the most important factor for maximum incidence of solar radiation.
If you raise the panels on the roof to an 'optimum angle' for your latitude, ibwould think that they may be subject to wind shear.
I look forward to someone else's more knowledgeable answers...

Sent from my MI CC 9 using Tapatalk

Shonver:
Roof is indeed north facing, angle is 12.8 deg from the horizontal.
Are most installations mounted flat on the roof (not tilted higher)?

fdlsys:

--- Quote from: Shonver on November 18, 2021, 04:14:51 PM ---Roof is indeed north facing, angle is 12.8 deg from the horizontal.
Are most installations mounted flat on the roof (not tilted higher)?

--- End quote ---
Cheaper that way. No other reason.

resham:
Check some of the examples of rails https://www.enway.co.za/solar_products/solar-mounting

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