Economical Feasibility of Utilizing Photovoltaics for Water Pumping in Saudi Arabia

Table 2

Global solar radiation on horizontal surface (kWh/m²/d).

Month	Dhahran	Riyadh	Jeddah	Guriat	Nejran
Jan	3.57	3.76	4.53	3.14	5.71
Feb	4.42	4.63	5.32	3.96	6.60
Mar	5.13	5.38	6.18	5.04	6.98
Apr	6.03	6.19	6.88	6.15	7.43
May	7.03	7.15	7.17	7.10	7.65
Jun	7.73	7.87	7.12	7.95	7.87
Jul	7.26	7.59	7.04	7.76	7.22
Aug	6.97	7.15	6.53	6.92	7.14
Sep	6.45	6.34	6.17	5.92	7.53
Oct	5.33	5.47	5.56	4.41	7.09
Nov	4.00	4.22	4.60	3.26	6.37
Dec	3.28	3.52	4.15	2.80	5.65
Annual	5.60	5.78	5.94	5.37	6.94