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ESharp · 12-23-13, 07:23 PM

Properly constructed panels of copper and aluminum should be fine with any tilt.

Selecting a tilt is more a matter of optimization of annual vs winter collection of energy. See graph 2 here: Optimizing Thermal Collector Tilt Angles | SolarPro Magazine for a general idea of the effect of collector tilt on annual production.

Panels at 20 degrees will experience more direct sunlight in the summer. Panels at 45 degrees will still experience direct sunshine, just later/earlier in the year.

12-23-13, 07:23 PM	#7
ESharp Lurking Renovator Join Date: Apr 2012 Location: NS, Canada Posts: 21 Thanks: 1 Thanked 9 Times in 6 Posts	Properly constructed panels of copper and aluminum should be fine with any tilt. Selecting a tilt is more a matter of optimization of annual vs winter collection of energy. See graph 2 here: Optimizing Thermal Collector Tilt Angles \| SolarPro Magazine for a general idea of the effect of collector tilt on annual production. Panels at 20 degrees will experience more direct sunlight in the summer. Panels at 45 degrees will still experience direct sunshine, just later/earlier in the year.