Performance study of self-sufficient and renewables based electricity supply of a hospital in the Near East Region

Stand alone wind-diesel power systems can be an attractive solution for the supply of remotely located consumers or the provision of enhanced energy independence. This study presents the dynamic behavior of a hybrid power system containing a prior wind generator and a supplementary generator set driven by a combustion engine, thus independently and economically supplying electrical load demand for the main hospital in Gaza-Strip - Palestine. Accumulator bank and electrolyzer plus hydrogen storage tank are added as short term and long term storage devices - respectively - in order to balance power in the system. To analyze the behavior of the above mentioned power system, the measurements for wind speed were taken from a meteorological station located in the relevant coastal area, for relatively more than one year; correspondingly, the electrical load shape of the hospital had been recorded in high temporal resolution. Stored hydrogen is injected to the generator set under a prescribed scenario of operation. The simulation results prove that continual electricity supply at low emissions and high degree of energy independence is possible.