Hybrid solar power plant for lighting power source in the politeknik negeri jember engineering department building

Abstract

Abstract The sun is one of the potential renewable energy sources in Indonesia. One use of solar energy is to generate electricity. The Politeknik Negeri Jember Engineering Building already has a hybrid type solar power plant. However, it has not been utilized optimally because it is not connected to the building’s electrical network. This research aims to plan the connection of a solar power plant with an engineering building lighting system. The electrical network for the Engineering Department building that will be supplied by the solar power plant is the electric lighting system on the 3rd floor. The cable chosen is 4 mm2 with a cable length of 81 meters. Electrical connection from the solar power plant to the engineering building electrical network is carried out via an automatic transfer switch. If the condition of the electricity generated is adequate, the electricity will be connected automatically to the building’s lighting electricity network. If the electrical energy produced is insufficient or has run out, the lighting electricity network will automatically connect to the main electricity source. The building’s solar power plant is equipped with an internet of things system to monitoring its performance. The daily lighting electricity consumption is around 2.55 kwh.