Recent research led by Andrew J. Hutchinson from the Department of Electronic and Electrical Engineering at The University of Sheffield has unveiled a promising new application for Flywheel Energy Storage Systems (FESS) in the UK’s electricity market. Published in the IEEE Open Access Journal of Power and Energy, the study explores how low-energy capacity storage systems, particularly flywheels, can effectively participate in frequency response services—a critical component for maintaining grid stability.
As the National Grid ESO rolls out new Frequency Response Services, this research highlights the potential for standalone FESS to contribute meaningfully to grid frequency control. The study assessed the impact of varying response envelopes on the performance of a 20C flywheel system, achieving an impressive 95% availability over a year of operation. This level of reliability is significant, as it demonstrates that a broader range of energy storage technologies can play a vital role in managing grid frequency than previously thought.
Hutchinson emphasizes the economic advantages of tailoring frequency response services to the unique strengths of flywheels. “Through tailoring a service to the advantages of a flywheel, significant economic benefits can be achieved,” he states. The research indicates that a flywheel system could maintain positive economic performance with a total capital cost of up to £3,364 per kilowatt under current market conditions.
This finding opens up commercial opportunities for sectors involved in energy storage and grid management. Companies that manufacture or operate flywheel systems can now position themselves to take advantage of the evolving frequency response market. Furthermore, energy providers looking to enhance their service offerings may find it beneficial to invest in or collaborate with flywheel technology developers.
Overall, Hutchinson’s research not only highlights the technical capabilities of flywheel systems but also underscores their potential economic viability in a rapidly changing energy landscape. As the demand for reliable and efficient energy storage solutions grows, flywheels could become an increasingly important asset for grid operators and energy companies alike.
