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Energy Storage Systems
Energy Storage Systems act like giant batteries that store excess energy for future use.
While there are economic and technical factors to consider in deploying Energy Storage System (ESS), it can also bring multiple benefits to the power system and consumers:
It facilitates the integration of distributed and intermittent generation sources into the power grid.
It enables shifting of peak electricity load to off-peak periods, helping to manage electricity prices.
It provides ancillary services to the market by regulating and reserving energy, contributing to grid stability and reliability.
It can swiftly respond to power fluctuations within the grid, ensuring a reliable and consistent energy supply.
The different types of energy storage system technologies
Accelerating Energy Storage for Singapore (ACCESS) Programme
Led by EMA, the ACCESS programme helps to facilitate ESS adoption in Singapore by promoting use cases and business models.
It also looks at securing space, marrying demand with solution, and facilitating regulatory approvals for ESS deployment.
Singapore’s First Utility-scale Energy Storage System
Through a partnership between EMA and SP Group, Singapore deployed its first utility-scale ESS at a substation in Oct 2020. It has a capacity of 2.4 megawatts (MW)/2.4 megawatt-hour (MWh), which is equivalent to powering more than 200 four-room HDB households a day.
The ESS will participate in the wholesale electricity market to provide services that are necessary to mitigate intermittency caused by solar, as well as reduce peak demand. It will also provide insights into the performance of ESS under Singapore’s hot and humid environment and aid in establishing technical guidelines for such deployments.