The Kingdom of Saudi Arabia has successfully completed the grid connection of its landmark 7.8 GWh energy storage system (ESS), setting a new global benchmark in battery energy storage capacity. Once fully energised, the project will become the world’s largest operational battery energy storage system (BESS), marking a major milestone in the Middle East’s renewable energy journey.
The mega project is spread across three sites in the southwestern region of Saudi Arabia—Najran, Khamis Mushait and Madaya—and represents a significant step toward strengthening grid stability and enabling large-scale renewable energy integration.
Sungrow, the project’s equipment provider, played a critical role in the execution. The company completed manufacturing of more than 1,500 PowerTitan 2.0 systems in just 58 days and delivered the entire project within an exceptionally tight and challenging timeline.
The PowerTitan 2.0 features an advanced all-in-one AC–DC block design, integrating power conversion systems (PCS), pre-assembled battery containers, medium-voltage transformers and ring main units (RMU), along with comprehensive factory testing. This integrated architecture significantly reduced on-site installation time and improved overall project efficiency. To ensure seamless execution, Sungrow also deployed a dedicated local service team in Saudi Arabia to support installation, commissioning and grid connection.
The 7.8 GWh installation marks the beginning of large-scale energy storage deployment in the Middle East. Once operational, the system is expected to achieve an annual charging and discharging capacity of approximately 2.2 billion kWh—enough to meet the yearly electricity needs of around 400,000 households in Saudi Arabia.
The project is a key contributor to Saudi Arabia’s Vision 2030 goals, enhancing energy security, supporting renewable energy expansion and accelerating the Kingdom’s transition toward a clean and sustainable energy mix. It also underscores the growing role of energy storage in enabling reliable, round-the-clock renewable power.
