The Sault Ste. Marie – BESS is a 7,000kW energy storage project located in Sault Ste. Marie, Ontario, Canada.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2015 and was commissioned in 2016.


The Sault Ste. Marie – BESS is owned by Independent Electricity System Operator (100%).

The key applications of the project are voltage control, reactive power support, frequency regulation, ramp rate control, peak shaving and load shifting.

Contractors involved

General Electric and Independent Electricity System Operator have delivered the battery energy storage project.

Additional information

The 7 MW / 7 MWh lithium-ion battery project will provide Ontario’s Independent Electricity System Operator with Reactive Support and Voltage Control services via a pay-for-performance service contract. Additionally, the project has been strategically located in PUC Services territory, allowing it to balance and integrate 60 MWs of photovoltaic solar capacity and 150 MWs of peak load on the end of an 115kV radial circuit.


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.