The Clear Creek Flywheel Energy Storage System is a 5,000kW energy storage project located in Norfolk County, Ontario, Canada.

The electro-mechanical energy storage project uses flywheel as its storage technology. The project was announced in 2013 and was commissioned in 2016.


The Clear Creek Flywheel Energy Storage System was developed by Temporal Power. The project is owned by Hydro One Networks (100%), a subsidiary of Hydro One.

The key applications of the project are distribution upgrade due to wind, voltage support and ramping.

Contractors involved

Hydro One Networks and Temporal Power have delivered the energy storage project.

Additional information

In Temporal’s Clear Creek project, the company is continuing its work to effectively integrate wind renewable generation onto the grid, neutralizing the impact of the variability of that wind on the rest of the grid. When completed, Temporal’s solution will demonstrate both storage and distribution capabilities, creating the desired steady state of power delivery. Temporal’s Clear Creek facility houses ten 500 kW flywheels in a modular deployment and provides 10 MW of range (+/-5 MW) delivering automatically dispatched response ramping. Phase 1 (reactive power validation) and Phase 2 of the project (engaging its flywheels and ensuring power quality) are complete; Phase 3 (commissioning of the plant) is scheduled for the end of 2016.

About Temporal Power

Temporal Power, Ltd. is a developer and manufacturer of electrical energy storage systems using a proprietary breakthrough flywheel technology.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.