Implementation of an autonomous solar system on the island of Pag for the needs of a facility without a connection to the public grid. The system consists of 4 solar modules with a power of 405 W (total 1.62 kW), a 3 kW inverter and two Li-Ion batteries with a capacity of 12.8V / 200Ah. The project included the installation of solar panels, installation of a battery storage system, inverter configuration, system connection and final testing of operation in off-grid mode. The system is designed for seasonal use, with an emphasis on energy independence and reliability in island conditions.