E Electrical energy is the main source of needs for modern society today. indonesia still has approximately 2500 villages that have not been electrified, causing a lack of public fuel filling stations (spbu) in some of these areas. problem solving that is done is to utilize new renewable energy. this off grid solar power plant research aims to utilize solar energy sources at a public fuel filling station (spbu) by utilizing vacant land (such as, the roof of the gas station and the roof of the gas station office building) as the solar power plant land. the design of this off grid solar power plant is carried out by knowing the daily consumption load of the gas station, then identifying the land and area of the gas station, then the ideal design is carried out by following the equipment specifications on the market. tests were carried out at type b gas stations which have several main components, namely 2 gasoline tank suction motors & pumps with a capacity of 1 ½ hp, 3 1 hp gasoline dispensers, 8 150 watt gas station canopy led lights, 8 200 watt gas station street lights and 1 400 watt toilet water pump. as well as having several additional components such as 1 cpu 400 watts, 2 ½ pk air conditioners, 4 neon led room lights 40 watts, 1 fan 100 watts and others. the results of this solar power plant design are obtained in the form of image analysis and cost calculations that can be built at a regular type b gas station. the design shows that it uses solar modules with specifications of 425 wp and inverters of 5 kw & 8 kw with a total area of 1600 m². the solar power plant produces a total power of 32.4 mwh/year (numerical calculation) as well as 53.23 mwh/year (with hellioscope software). this design requires an initial investment of rp 2,467,795,491 and solar power plant maintenance costs of rp 24,677,955 per year. data from the payback period calculation results show that the amortization time reaches 8 years and 6 months, and the npv value of the investment is also positive. compared with the estimated average lifetime of solar collectors that reaches 20 years, it is possible to draw a conclusion that the production of solar power plant with this design at a gas station is very possible and a good income for the future will also be achieved.