A recent study published in the IEEE Open Access Journal of Power and Energy has highlighted the potential of flywheel energy storage systems (FESS) to contribute to grid frequency control, a crucial service for maintaining the stability of electricity supply. Conducted by Andrew J. Hutchinson from the Department of Electronic and Electrical Engineering at The University of Sheffield, the research investigates how low-energy capacity storage systems can engage with the newly introduced Frequency Response Services by the National Grid ESO in Great Britain.
The study explores a novel design that allows standalone flywheel systems to participate effectively in the frequency response market. The researchers assessed the impact of varying the response envelope of the frequency response service on the performance of a standalone FESS. Their findings revealed that a 20C flywheel energy storage system could achieve an impressive 95% availability over a year of operation, indicating a robust performance under current market conditions.
One of the significant takeaways from Hutchinson’s research is the revelation that a broader array of energy storage technologies can contribute meaningfully to grid frequency control than previously thought. This finding opens the door for various sectors, particularly those involved in renewable energy and grid management, to consider integrating flywheel systems into their operations.
Hutchinson noted, “By tailoring a service to the advantages of a flywheel, significant economic benefits can be achieved.” The study demonstrates that a 20C FESS could maintain positive economic performance even with total capital costs reaching £3,364 per kilowatt under existing market conditions. This potential for economic viability is particularly appealing for investors and operators in the energy storage sector, suggesting that flywheels could play a pivotal role in the transition towards more resilient and flexible power systems.
The implications of this research extend to energy providers, grid operators, and technology developers who are looking for innovative solutions to meet the growing demand for frequency response services. As the energy landscape evolves, integrating high-power, low-energy storage devices like flywheels may become a key strategy for enhancing grid stability while capitalizing on economic opportunities in the energy market.
