Ok I am slightly confused. I only need a half day to compute theoretical full yield? I get that. A lot of panels suffer from thermal degredation later in the day which would make their yield not quite symetric but the unisolars do not according to their specs. so you should be right about yield symmetry.
I am looking for actual full yield in the position the RV is parked. Dec 21st is my worst case for angle and day length. The days approaching and following also seem useful to interpolate the shortest day in case it is not full sun.
Is there a calculator to estimate yield based on watts of solar and latitude?
Jim
