Battery energy storage systems (ESS) provide critical frequency and stability support to power grids. As one of Asia’s largest battery operators, our energy storage portfolio is well-positioned to support the evolving needs of power markets as they increase their uptake of renewable energy.
The Sembcorp Energy Storage System was launched in 2023. Commissioned in six months, the 285MWh system was Southeast Asia’s largest ESS and the fastest in the world of its size to be deployed. Built across two sites on Jurong Island, our ESS enhances Singapore’s grid resilience by mitigating the impact of solar intermittency as the republic progresses towards achieving its 2030 solar target of at least 2GWp and energy storage systems deployment of 200MWh beyond 2025.
In 2025, a battery stacking project was piloted to increase the storage capacity to 326MWh. It is the first operational ESS to be expanded vertically, delivering more power within the same footprint. A rail-guided battery stacking method was implemented to safely position the batteries without the use of large crane. The system also features grid-forming capable inverters that can automatically manage voltage and frequency to maintain grid stability.
Capable of actively managing mismatches between electricity supply and demand, our ESS can provide power to meet the daily electricity needs of around 27,300 four-room public housing flats in a single discharge.
of energy storage and delivery
four-room HDB flats powered*
Sembcorp Banyan Energy Storage System
Sembcorp Sakra Energy Storage System
Hear from our team and the Energy Market Authority (EMA) of Singapore on how this feat was achieved, and what it means for Singapore’s sustainable energy future.
Watch highlights of the opening ceremony officiated by Minister Tan See Leng on 2 February 2023.
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Get in touch*Meeting the daily electricity needs of around 27,300 four-room public housing flats in a single discharge. Based on the average household electricity consumption of a 4-room HDB household in 2023.