Performance Study of Micro Hydro Turbine and PV for Electricity Generator, Case Study: Bunnasopit School, Nan Province, Thailand

This article presents the performance analysis and study of hybrid renewable energy using micro hydro turbine and photovoltaic system in the case study area: Bunnasopit School, Nan province, Thailand. The main problem of the implementation of such system in this rural area is the voltage instability of the grid distribution system. Electrical Power consumption, hydrology and metrology data are necessary for the designing and analyzing for such hybrid system. The data was corrected all over a year in order to analyze the performance of electrical generating system using Homer program. The simulation results were used for the breakeven point analyzing by engineering economics. From the simulation results, the maximum load of the hybrid system is 5 kW. This system can generate the electricity 44 kWh/day. The hydro power can only generate electricity at 36 kWh/day while the PV system can only generate electricity at 14 kWh/day. The total electrical generating is 23,360 kWh/year. The economics analysis result found that the hybrid system cost is 9.21 US Dollar/kWh. The investment and NPV are 3,493,630 baths and 41,175.76 US Dollar, respectively. IRR and Benefit Cost Ratio 1.68 and 0.50 respectively. The benefit of this system is 2,433.3 US dollar/year.