Saudi Arabia Connects World’s Largest 7.8 GWh Energy Storage System to Grid

The Kingdom of Saudi Arabia has officially completed grid connection of its energy storage system (ESS) project with a nameplate capacity of 7.8 GWh. Once fully energized, it will become one of the world’s largest operational battery energy storage system (BESS).

The large-scale project spans three key sites in Saudi Arabia’s southwestern regions - Najran, Khamis Mushait, and Madaya.

Sungrow, the equipment provider for the project, completed manufacturing of more than 1,500 PowerTitan 2.0 systems within just 58 days. 

Advanced PowerTitan 2.0 Technology

Sungrow’s PowerTitan 2.0 system features an integrated all-in-one AC-DC block design that includes embedded power conversion systems (PCS), pre-assembled battery containers, medium voltage transformers, and ring main units (RMU). Each system undergoes comprehensive factory testing before deployment, significantly reducing onsite installation time and complexity.

In addition, Sungrow has established a local service team in Saudi Arabia to manage installation, commissioning, and grid connection. This permanent technical presence in the region is intended to ensure efficient project execution and long-term operational reliability.

Capacity and Impact

The 7.8 GWh project marks the beginning 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 demand of approximately 400,000 households in Saudi Arabia. 

As part of Saudi Arabia’s Vision 2030, the project underscores the nation’s commitment to diversifying its energy mix and achieving sustainability targets through innovation and large-scale renewable investments. 

As of June 2025, Sungrow has installed 870 GW of power electronic converters worldwide, further solidifying its position as one of the leading technology providers in the global renewable energy sector.