Abstract
Hourly mean wind-speed and solar radiation data for the period 1986–1993 [except the years 1989 (some data is missing) and 1991 (Gulf War)] recorded at the solar radiation and meteorological monitoring station, Dhahran (26° 32′ N, 50° 13′ E), Saudi Arabia, have been analyzed to report the monthly variation of wind speed and solar radiation, probability distribution of wind speed and to investigate the feasibility of using hybrid (wind+solar) energy conversion systems at Dhahran. The monthly average wind speeds for Dhahran range from 4.21 to 6.97 m/s. The monthly average daily values of solar radiation for Dhahran range from 3.61 kwh/sq.m to 7.96 kwh/sq.m. The hybrid system considered in the present analysis consists of two 10 kW Wind Energy Conversion Systems (WECS), 120 sq.m of Photovoltaic (PV) panels together with a battery storage system and a diesel back-up. The monthly average daily energy generated from the above hybrid system has been presented. The energy generated from the back-up diesel generator and the no. of operational hours of the diesel system to meet a specific annual electrical energy demand of 41531 kWh have also been presented.
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