Just figured I'd note some data. It's hard to guess at efficiency through the year!
Today, cloud cover was measured at 0-1%. My Camper with1200 watts of poly flat mounted panels is down below, a bit north of Golden.
My system was down a bit, due to my use of power the other day and a day of high cloud cover and snow.
My system maxed out at 545w, yeah less than 50%. I haven't cleaned them lately so assume some dirt in combination with the angle.
Also, at least one set of my panels was certainly in shade from the adjacent A/C unit. The sun angle is just bad this time of year. Lots of atmospheric interference for sure. My 'flat' mounted panels actually angle down with my roof toward the back half the camper. Since my unit faces south, they are even less effective when in winter storage.
Total PV generation for the day: 2.4Kwh.
Considering the angle and early drop off when the sun dropped behind the mountains to the west (which dropped output down to 100w and then tailed off for the final 2.5 hours)
Today, cloud cover was measured at 0-1%. My Camper with1200 watts of poly flat mounted panels is down below, a bit north of Golden.
My system was down a bit, due to my use of power the other day and a day of high cloud cover and snow.
My system maxed out at 545w, yeah less than 50%. I haven't cleaned them lately so assume some dirt in combination with the angle.
Also, at least one set of my panels was certainly in shade from the adjacent A/C unit. The sun angle is just bad this time of year. Lots of atmospheric interference for sure. My 'flat' mounted panels actually angle down with my roof toward the back half the camper. Since my unit faces south, they are even less effective when in winter storage.
Total PV generation for the day: 2.4Kwh.
Considering the angle and early drop off when the sun dropped behind the mountains to the west (which dropped output down to 100w and then tailed off for the final 2.5 hours)