DUNGUN — Tenaga Nasional Berhad has launched the nation’s first grid-connected Battery Energy Storage System, a groundbreaking development designed to instantly stabilize the electricity network and accelerate clean energy integration.
The smart energy facility is situated at the Santong Main Intake Substation in Terengganu and features an operational capacity of 100 megawatts and 400 megawatt-hours. Deputy Prime Minister and Minister of Energy Transition and Water Transformation, Datuk Seri Fadillah Yusof, officially launches the project today.
Developed on a 1.2-hectare site, the system functions as a large-scale power repository. It captures and stores excess electricity generated from volatile green sources, like large-scale solar farms and hybrid floating solar systems, before discharging it back into the grid during peak demand hours or unexpected generation drops.
TNB Chairman Tan Sri Abdul Razak Abdul Majid explained that the facility utilizes advanced liquid-cooling technology and grid-forming capabilities. These technical features allow the system to handle real-time supply and demand imbalances, providing enough backup power to support the energy needs of roughly 40,000 households on the East Coast.
The utility giant completed construction and testing within 309 days from the initial start date to active operations. TNB Chief Executive Officer Datuk Shamsul Ahmad added that the project relies heavily on predictive digital analytics for demand forecasting, directly supporting the green infrastructure targets established under the National Energy Transition Roadmap.
