Singapore Business
Summary
The Energy Market Authority and SP Group will pilot an ice thermal energy storage system (ESS) at the George Street Substation, the first-ever to be located outside a district cooling plant.
In a statement, the companies said the ESS, which pilot will be completed in the third quarter of 2026 as part of the substation’s renewal works, will support the supply intermittency issue of renewable energy such as solar which fluctuates due to weather conditions.
The stored energy can be discharged to power the district cooling plant and cut peak load demand. This will also balance the electricity load and allow a more resilient grid.
“If successful, more thermal ESS can be installed island-wide, which will support Singapore’s target of having at least 200MW of ESS beyond 2025,” said EMA Chief Executive Ngiam Shih Chun.
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