Sun
angle
of
55.3°
creates
70%
of
possible
heat
energy
Sun
angle
of
62.2°
creates
80%
of
possible
heat
energy
Sun
angle
of
69.0°
creates
90%
of
possible
heat
energy
Sun
angle=
of
74.8°
creates
93.3%
of
possible
heat
energy
Sun
angle=
of
80.7°
creates
96.6%
of
possible
heat
energy
Sun
angle=
of
86.5°
creates
99.5%
of
possible
heat
energy
Sun
angle
of
80.7°
creates
96.6%
of
possible
heat
energy
Sun
angle
of
74.8°
creates
93.3%
of
possible
heat
energy
Sun
angle
of
55.3°
creates
70%
of
possible
heat
energy
Sun
angle
of
48.5°
creates
60%
of
possible
heat
energy
Sun
angle
of
69.0°
creates
90%
of
possible
heat
energy
Sun
angle
of
62.2°
creates
80%
of
possible
heat
energy
80%
60%
100%
Jan. 21
Feb. 21
March 21
April 21
May 21
June 21
July 21
Aug. 21
Sept. 21
Oct. 21
Nov. 21
Dec.21
40%
20%
0%