Post by calvert on May 23, 2018 7:15:54 GMT
I’m planning to install solar panels on a flat roof with a 10 degrees fixed tilt
I’m in the northern hemisphere and the panels will be aligned due south
The summer maximum sun angle where I live is 68 degrees so ideal tilt for panels is 22 deg for midsummer
The winter mamimum sun angle is 20 degrees so ideal tilt is 70 deg for mid winter
Therefore with a 10 deg tilt on my panels the midsummer tilt is just 12 degrees from optimum.
As far as I can make out from the Internet that will have negligble effect of the power output
But in midwinter the difference is 60 degrees
I can’t find a graph or any info on the theoretical reduction of output for such a large difference from optimal
Can anyone help?
many thanks
I’m in the northern hemisphere and the panels will be aligned due south
The summer maximum sun angle where I live is 68 degrees so ideal tilt for panels is 22 deg for midsummer
The winter mamimum sun angle is 20 degrees so ideal tilt is 70 deg for mid winter
Therefore with a 10 deg tilt on my panels the midsummer tilt is just 12 degrees from optimum.
As far as I can make out from the Internet that will have negligble effect of the power output
But in midwinter the difference is 60 degrees
I can’t find a graph or any info on the theoretical reduction of output for such a large difference from optimal
Can anyone help?
many thanks