BYD Energy Storage and Saudi Electricity Company (SEC) have finalized the world’s largest grid-scale energy storage contract, totaling 12.5GWh. Combined with a previously delivered 2.6GWh project, their collaboration now stands at 15.1GWh, making it a milestone in renewable energy infrastructure.

The project is a key component of Saudi Arabia’s Vision 2030, a national strategy aimed at achieving 50% renewable energy in the country’s power mix. The energy storage systems will be deployed across five sites, helping stabilize the grid and mitigate fluctuations caused by increasing renewable power sources.

BYD will supply its MC Cube-T ESS, featuring Cell-to-System (CTS) super-integrated technology. The system boasts a Vcts index exceeding 33%, setting a global benchmark for energy storage efficiency.

“This project will redefine the role of electrochemical energy storage solutions in the global energy transition,” BYD Energy Storage stated.

BYD has been a pioneer in battery energy storage, delivering 75GWh of storage solutions to 350 projects across 110+ countries since deploying its first system 17 years ago. This latest deal reinforces its leadership in supporting large-scale renewable energy integration worldwide.

BYD plans to expand investment in R&D and strengthen global partnerships to drive innovation in energy storage and clean energy solutions.