Determining Optimum Tilt Angle for 1 MW Photovoltaic System at Sukkur, Pakistan

Table 3

Monthly specific daily global irradiance (), year days, days of the month, tilt angle (deg), irradiance level after tilt, and declination angle of the earth.

-Wh/m^2/day	-W/m^2/day	Year day	Month day	Tilt angle (deg)	Irradiance level after tilt	Declination angle of earth
7490	913	21	21 Jan	29.5	1447.27	-20.14
7560	921	52	21 Feb	29.5	1253.4	-11.23
8770	1069	80	21 Mar	29.5	1229	-0.403
9420	1148	111	21 Apr	29.5	1108	11.58
10610	1293	141	21 May	29.5	1102.8	20.14
11210	1367	172	21 Jun	29.5	1109.5	23.45
11420	1392	202	21 Jul	29.5	1182	20.44
10250	1250	233	21 Aug	29.5	1202.5	11.75
10390	1267	264	21 Sep	29.5	1451.6	-0.2
8830	1076	294	21 Oct	29.5	1476.6	-11.75
9000	1097	325	21 Nov	29.5	1749.5	-20.44
6990	852	355	21 Dec	29.5	1440.2	-23.45