The state-owned power utility, Saudi Electricity Company (SEC), has completed the grid connection of a 7.8 GWh battery energy storage system (BESS) project across three sites in south-western Saudi Arabia, marking a major milestone in the country’s power system modernisation and renewable energy integration.
The project comprises three BESS installations of 2.6 GWh each, located in Najran, Khamis Mushait, and Madaya. All three sites are connected to the transmission network at the 380 kV voltage level. The BESS project is owned by SEC, with its subsidiary National Grid SA acting as the offtaker.
The storage facilities are designed to enhance grid stability, improve system flexibility, and support large-scale integration of renewable energy in the country’s power mix. Algihaz Holding, a Saudi-based energy and infrastructure company, delivered the project under a full turnkey engineering, procurement and construction (EPC) contract.