Abstract
Javan Langur Centre (JLC) is a facility dedicated to the treatment of langur, an endangered primate species. To support the maintenance and rehabilitation activities, the need for electrical energy is a vital. In this facility, electrical energy is needed for lighting and baby primate's incubator with a total power of around 120 watts. There is no electricity grid included in this area and the supply of electrical energy is still very dependent on the gen-set owned by the residents which is located approximately 2 km from JLC, making it less efficient. In terms of natural energy resources, JLC has the availability of water sources that originate from small streams making it possible to develop pico-hydro technology. There has been built a pico-hydro power generation with a potential electric power that can be generated approximately 300 watts. However, the water discharge of the river stream in that area is quite low, around 0.00035 m3/s, that makes the efficiency of the power generation is 10% only. In other words, the actual electrical power that can be generated is around 30 watts. So as to meet the electrical power needs at JLC, another electrical energy source is needed. One alternative is to install solar cells or photo voltaic (PV) with a capacity of 100 watts peak. The output power of these two energy sources can be combined and regulated by applying Hybrid Power Generation technology. With the application of this technology, the need for electrical energy in the JLC area can be met.
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