Sungrow, a leading global provider of photovoltaic (PV) inverters and energy storage systems, has announced the official commissioning of the Santong Battery Energy Storage System (BESS), owned and developed by Tenaga Nasional Berhad (TNB), marking another significant milestone for Malaysia in advancing the national grid-connected battery energy storage system.
Located in Terengganu, the 100MW / 400MWh BESS Santong project plays a crucial role in Malaysia’s energy transition journey by strengthening the resilience of the national grid, while enabling wider integration of renewable energy. Designed to meet stringent grid performance requirements, the project targets a complete cycle efficiency (RTE) of 88% in its first year of operation and supports both grid-connected and grid-forming operation modes to enhance system stability and reliability.
For the implementation of this project, Sungrow provided a fully integrated energy storage solution consisting of 90 units of PowerTitan 2.0 liquid-cooled energy storage systems (ST5015UX-4H + MVS5140-LS) along with FEMS (Facility Energy Management System), thus enabling smart dispatch and flexible grid support capabilities.
The project set a record for the fastest BESS delivery in Malaysia to date and became the first grid-connected battery energy storage system project with grid-forming capabilities in the country. Leveraging proactive local service support and comprehensive project implementation, Sungrow successfully facilitated a 100MW full power discharge test and received recognition from the Malaysian Minister of Energy and the Deputy Prime Minister.
“BESS Santong represents a significant achievement in strengthening Malaysia’s power supply system and advancing the integration of renewable energy,” said TNB Chairman, Tan Sri Abdul Razak Abdul Majid. “Its rapid response capabilities enhance grid reliability and support the demand for electricity equivalent to approximately 40,000 households across the East Coast.”
