Design and Analysis of Technical Economics of Off-grid Systems Solar Power Plant Using Homer at Cemara Island, Brebes Regency

Cemara Island is a coastal tourism area that has not been electrified and this problem becomes an obstacle for local residents to use electrical energy services. The impact of the absence of facilities in the form of electrical installations is that coastal tourism activities are not optimal. These Photovoltaic technologies may convert solar energy into electrical energy through photovoltaic effects. For this reason, The Solar power plant can be the solution to the problems in Cemara Island. However, technical and economic analysis is needed. From the result of solar system design calculation, it was obtained the number of solar panel capacity is 8x150Wp, solar charge controller of 40A, 4 units of battery with 100Ah specifications, and 2000W of the inverter. By using Homer, it can be seen that the amount of power produced by solar panels is 1746kWh/year. With an initial investment of $3745, in the scenario of using interest at 6%, the net present cost is $6534, the cost of energy value is $1,06/kWh, and BEP occurring at 11th year. Then in the scenario without using interest, the net present cost value is $8848, the value of cost of energy is $0.755/kWh and BEP occurring at 25th year.