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

Table 2

Solar radiation in kWh/m²/day in horizontal surface.

	Oman	UAE	KSA	Qatar	Bahrain	Kuwait
January	3.61	3.36	3.39	3.35	2.94	2.90
February	4.28	4.31	4.04	4.01	3.21	3.18
March	4.95	4.24	4.47	4.40	3.71	3.65
April	6.21	5.69	5.6	5.56	5.11	5.10
May	7.16	7.73	7.43	7.40	6.49	6.44
June	7.49	8.73	8.99	8.81	7.98	7.91
July	6.84	8.76	9.17	9.16	8.38	8.36
August	7.17	8.93	9.14	9.10	8.35	8.31
September	6.25	6.75	7.11	7.32	7.37	6.63
October	5.49	5.46	5.66	5.96	5.96	5.01
November	5.78	5.87	4.64	4.79	4.79	3.85
December	3.46	3.17	2.82	2.82	3.13	3.14