1. Assessment of windfarm economics in relation to site wind resources applied to sites in Jordan
2. Annual report. 2002–2003. Saudi Electricity Company, Riyadh, Saudi Arabia
3. Barley, C.D. and Flowers, L.T., 1999. Feasibility of hybrid retrofits to off-grid diesel power plants in the Philippines. Presented at Windpower 99, 20–23 June Burlington, VT [NREL/CP-500-26927, August 1999]
4. Wind energy for the 1990s and beyond
5. Assessing the maximum fuel savings obtainable in simple wind-diesel systems