Optimum Tilt Angle and Solar Radiation of Photovoltaic Modules for Gulf Collaboration Council Countries

Table 1

Monthly solar radiation in kWh/m²/day, by changing the tilt angle 12 times.

	Oman	UAE	KSA	Qatar	Bahrain	Kuwait
January	5.42	4.72	5.07	5.1	4.19	4.14
February	5.56	4.72	5.13	5.76	3.85	3.83
March	5.54	4.24	4.98	4.73	4	3.96
April	6.35	5.51	5.7	5.8	5.16	5.12
May	7.16	7.22	7.43	7.73	6.49	6.48
June	7.49	8.21	8.99	8.73	7.98	7.98
July	6.79	7.77	9.17	8.76	8.38	8.38
August	7.20	7.97	9.18	9	8.39	8.37
September	6.54	6.76	7.73	7.54	6.96	6.93
October	6.43	6.16	7.21	6.79	5.8	5.75
November	6.41	5.53	6.44	6.35	4.78	4.74
December	5.33	5.43	4.41	4.99	5.07	5.05
Total	6.35	6.19	6.79	6.77	5.92	5.89