Solar Help
I have an older Class B motorhome and have been thinking about solar. I can boondock now for 2 days before I have to recharge my 125ah battery. The only thing that draws power is the 12V fridge whic...
Forum Discussion
Flat vs pointed results depend on how high the sun is at the time. The higher the sun the closer flat results get to pointed.
You have the daily sun movement up and down and the annual change in declination change of sun's height, which goes with your latitude.
Soooo---it gets complicated. there are websites that try to show the diff for location and calendar.
I did a comparison last year in May for here using my 130w panel (8.2a Isc) but that would not come out the same in California --being farther south, the diff would be less since the sun is higher down there.
(the dips in tracking amps from 8.2 to 7.7 was due to only moving the panel three times a day instead of following the sun all day)
Time, Flat , Tilted, Tracking- Amps
0700- 1.0, 0.6, 3.7
0800- 2.0, 1.7, 5.7
0900- 3.6, 3.6, 7.3
1000- 5.1, 6.2, 8.1
1100- 6.3, 6.8, 8.2
1200- 6.9, 7.7, 7.7
1300- 7.2, 8.3, 8.3
1400- 7.1, 7.7, 7.7
1500- 6.4, 6.9, 8.1
1600- 5.0, 6.6, 8.1
1700- 3.9, 5.4, 7.3
1800- 2.0, 3.3, 5.7
1900- 1.0, 1.7, 3.7
You have the daily sun movement up and down and the annual change in declination change of sun's height, which goes with your latitude.
Soooo---it gets complicated. there are websites that try to show the diff for location and calendar.
I did a comparison last year in May for here using my 130w panel (8.2a Isc) but that would not come out the same in California --being farther south, the diff would be less since the sun is higher down there.
(the dips in tracking amps from 8.2 to 7.7 was due to only moving the panel three times a day instead of following the sun all day)
Time, Flat , Tilted, Tracking- Amps
0700- 1.0, 0.6, 3.7
0800- 2.0, 1.7, 5.7
0900- 3.6, 3.6, 7.3
1000- 5.1, 6.2, 8.1
1100- 6.3, 6.8, 8.2
1200- 6.9, 7.7, 7.7
1300- 7.2, 8.3, 8.3
1400- 7.1, 7.7, 7.7
1500- 6.4, 6.9, 8.1
1600- 5.0, 6.6, 8.1
1700- 3.9, 5.4, 7.3
1800- 2.0, 3.3, 5.7
1900- 1.0, 1.7, 3.7
