A new stand-alone hybrid power system with wind generator and photovoltaic modules for a radio base station

This work proposes a new stand-alone hybrid power system with a wind turbine generator and photovoltaic modules for a radio base station. We studied the system characteristics by simulation on Yonaguni Island, where the wind speed is over 4.0 m/s throughout the year, and the average annual wind speed is about 7.0 m/s. It was found that the base station equipment needs a wind generator output power of 8 kW, a photovoltaic output power of 7.4 kW and 177 kWh storage batteries for a system operation rate of 100%.