electrofelon
Senior Member
- Location
- Cherry Valley NY, Seattle, WA
Do the values in PV watts take into account snow covering the modules for significant periods during the winter? Anyone heard of an analysis of different panel tilts and its effect on snow shedding?
Ideal fixed tilt here near Albany NY is 34 degrees. 22 degrees only results in 2% less annual production - in theory. But how much quicker will they shed snow? Dec Jan and Feb together are 17% of annual production. This gets back to the first question, but I assume that assumes no snow cover. WAG, 1/4 of the time covered with snow at 34 degrees, 3/4 of the time at 22 degrees?
Ideal fixed tilt here near Albany NY is 34 degrees. 22 degrees only results in 2% less annual production - in theory. But how much quicker will they shed snow? Dec Jan and Feb together are 17% of annual production. This gets back to the first question, but I assume that assumes no snow cover. WAG, 1/4 of the time covered with snow at 34 degrees, 3/4 of the time at 22 degrees?