One of the efforts to help provide electrical energy from renewable energy sources on the island of Java is to develop solar power plants. Solar energy on the island of Java is very potential because the intensity of sunlight is adequate, as an area close to the equator. Solar energy is also one type of environmentally friendly energy, so it is perfect to use for the long term. In this study, a household-scale solar power plant was designed. As a tool, PVSYST software is used in this design. The designed electrical power capacity is equivalent to the home category PLN customers, namely 900 VA. The results of this design are expected to be a reference for electrical energy customers so that they can be considered to start switching to using renewable energy sources.