Study and Design of Energy-Saving Solar Lamp for Rural Area in Indonesia

As one of the largest archipelago countries in the world, Indonesia is still faced to electrification problems due to geographical reasons. The implementation of micro grid systems for dedicated areas will be one solution to deal with the electrical energy availability problem especially in some remote communities where located far from the main grid such as underdeveloped areas, remote island as well as some outer islands. Considering this problem, Indonesian government has launched Pre-electrification Program in year 2017. The main goal of this program is to increase the electrification ratio by providing Energy Saving Solar Lamps (Lampu Tenaga Surya Hemat Energi - LTSHE). To endorse this program, a study and design of solar-based energy saving lamp is presented in this paper. The special purpose of this study is to develop LTSHE prototype as part of contribution to national electrification ratio fulfilment program and to support government activity related to small grid development by utilizing the proper design and size for a more reliable solution. The long-term goal and objective to be achieved are the fulfilment of primary energy by utilizing new renewable energy resources by 23% by 2025. This paper will also show that the government equipment specification of LTSHE is not applicable in some area with low solar irradiance in Indonesia, in this case, North Sumatera region.