Analysis of Stand-Alone Solar Photovoltaic System for Engine Assembly Line at Manufacturing Factory in Indonesia

Industrial sector is the third biggest energy consumption comes after household and transportation energy in Indonesia. To reduce the energy consumption of industry and also impact to reduce the manufacturing cost of the industry, solar photovoltaic on the rooftop of the factory can be an alternative solution to supply energy at engine assembly line, one section of production at the factory. This paper studies about the impact of utilization stand-alone photovoltaic at rooftop of factory building in Jakarta technically. The analysis is using spreadsheet program to compare between stand-alone photovoltaic with battery, stand-alone photovoltaic with diesel generator that operate only when there is no sunshine, and stand-alone photovoltaic with diesel generator that always operating. Simulation demonstrates with estimated available area 7.000 m2 to install photovoltaic array. Result of this research is the stand-alone photovoltaic scenario with battery fulfilled all the demand load by 947,17 kWp installed photovoltaic capacity. The scenarios with diesel generator reduced the photovoltaic generation contribution by 49,25% for 676,69 kWp installed photovoltaic capacity, and diesel generation operating tandem with 297,92 kWp installed photovoltaic capacity that contribute to 33,09% for fulfillment energy demand. The reduced capacity of photovoltaic that installed, the less contribution generation by renewable energy, and the less area that needed to be utilized for photovoltaic system.