From: Annual performance analysis of different maximum power point tracking techniques used in photovoltaic systems
March 21
June 21
September 21
December 21
λmax[W/m2]
686.03
971.96
1043.40
760.53
Ta max [°C]
19.20
36
29.6
12.2
TC max [°C]
36.85
62.27
53.52
34.45
vw max [m/s]
5.2
9.8
4.1
5.7