Forum Discussion
BFL13
Jan 24, 2018Explorer II
To get your value from that solar, you really need to tilt the array at an advantageous angle, not have it hanging straight down. In the photos it looks like needing to hold it up from the bottom somehow to get the desired tilt angle. Makes a big diff in AH haul.
--or set the bottom on the ground out a ways and hang it the top as shown from hooks lower down?
The optimum tilt changes with your latitude and the sun's declination over the year.
EG if you are at 35N and Dec is 21S like maybe around now, your high noon tilt would be 35 + 21 = 56 degrees. Lower that a bit for "optimum"
By 21 March when Dec is zero, your noon tilt will be 35 if you are still there in March. By 21 June when Dec is 23N, your noon tilt would be 35 - 23 = 12 degrees or almost flat for optimum. Note that Dec is N after 21 March till 21 Sep, so you now subtract Dec instead of add it to the Lat.
--or set the bottom on the ground out a ways and hang it the top as shown from hooks lower down?
The optimum tilt changes with your latitude and the sun's declination over the year.
EG if you are at 35N and Dec is 21S like maybe around now, your high noon tilt would be 35 + 21 = 56 degrees. Lower that a bit for "optimum"
By 21 March when Dec is zero, your noon tilt will be 35 if you are still there in March. By 21 June when Dec is 23N, your noon tilt would be 35 - 23 = 12 degrees or almost flat for optimum. Note that Dec is N after 21 March till 21 Sep, so you now subtract Dec instead of add it to the Lat.
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