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Burlington, Mass.-based KEMA, a global energy and utility industry consulting firm, has released a report highlighting the benefits of energy storage technologies for system regulation in independent system operator (ISO) markets. The report, "Benefits of Fast-Response Storage Devices for System Regulation in ISO Markets," was prepared for AES Corp., a global energy company, to further the understanding of using storage for frequency regulation to improve electric grid system reliability, efficiency and flexibility.

"One finding [in the report] is that a fast-response storage device with an appropriate duration period (energy-to-power capacity ratio) is at least as effective as conventional generation for the supply of regulating services," says Ralph Masiello, one of KEMA's three innovation managers. "In addition, there may be additional benefits, such as decreasing dependence on traditional generation units, thus reducing adverse emission effects."

KEMA used a detailed dynamic simulation of three different representative ISO environments, including automatic generation control signals and real-time markets, to explore the performance of fast-response storage devices for frequency regulation.


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