الفهرس 
Specifications of the power supply for BTSOnly 14 pages are availabe for public view
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Abstract
The problem of providing electrical energy to mobile BTS stations either in remote or urban areas may be solved to the greatest extent if renewable-energy sources are used. In remote areas, where electric utility isn’t available, photovoltaic (PV) stand-alone system, using storage batteries represented a good solution, although it is expensive. In urban areas, PV on the grid system is an economical solution. In such a system, during sunshine hours the power generated by PV system supplies a part of its energy to BTS station, and the rest of the energy is supplied to grid utility. During the night where no solar-energy is available, the system is supplied by grid utility, i.e. you get back during the night, the energy supplied during the day to the grid. It is also possible to have a hybrid system using a diesel generator combined with PV to supply BTS stations in remote areas. The economics of the different proposed systems are the criterion of selecting the optimum system in Egypt. The major criterion is the cost per generated kWh is the crucial rule to decide which system is optimized. This work considers every above system.