Saudi Arabia Completes Grid Connection of 7.8 GWh Battery Energy Storage Project

Saudi Arabia has completed the grid connection of its landmark 7.8 GWh energy storage system (ESS), a project that is set to become the world’s largest operational battery energy storage system (BESS) once fully energised.

The development marks a major milestone for renewable energy deployment in the Middle East. The project is spread across three sites in the Kingdom’s southwestern region, Najran, Khamis Mushait and Madaya. Sungrow, the project’s equipment provider, said that it manufactured more than 1,500 PowerTitan 2.0 units in just 58 days and delivered the entire project within a highly challenging timeline.

The PowerTitan 2.0 features an all-in-one AC-DC block design, integrating power conversion systems (PCS), pre-assembled battery containers, medium-voltage transformers, ring main units (RMU), and comprehensive factory testing. This design significantly reduces onsite installation time. Sungrow has also deployed a dedicated local service team in Saudi Arabia to support installation, commissioning and grid connection.

The 7.8 GWh project marks the start of large-scale energy storage deployment in the Middle East. Its annual charging and discharging capacity is expected to reach 2.2 billion kWh, enough to meet the yearly electricity needs of around 400,000 households in Saudi Arabia.

The project is aligned with Saudi Arabia’s Vision 2030 goals and supports the global transition toward clean and sustainable energy.