Sungrow has commissioned the 100 MW/400 MWh Santong Battery Energy Storage System (BESS) in Terengganu, Malaysia, marking the country’s first grid-connected, grid-forming battery energy storage project.
Owned and developed by Tenaga Nasional Berhad (TNB), the Santong BESS is designed to strengthen Malaysia’s national electricity grid, improve system resilience and support greater integration of renewable energy. The project is designed to achieve a round-trip efficiency (RTE) of 88% in its first year of operation and supports both grid-following and grid-forming operating modes.
Sungrow supplied a fully integrated solution comprising 90 PowerTitan 2.0 liquid-cooled battery energy storage systems and a Facility Energy Management System (FEMS) to provide intelligent energy dispatch and flexible grid support.
The project set a record as the fastest BESS deployment in Malaysia and successfully completed a 100 MW full-power discharge test. According to TNB, the system can support electricity demand equivalent to approximately 40,000 households across Malaysia’s East Coast while improving grid reliability and enabling higher renewable energy penetration.