The Powin Energy Stratford Battery Energy Storage System is an 8,800kW energy storage project located in Stratford, Ontario, Canada.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2017 and was commissioned in 2018.


The Powin Energy Stratford Battery Energy Storage System was developed by Powin Energy. The project is owned by esVolta (100%).

The key applications of the project are frequency regulation, voltage control and reactive power support.

Contractors involved

esVolta and Powin Energy have delivered the battery energy storage project.

Additional information

This project is a part of Powin Energy’s 12.8 MW/52.8 MWh Energy Storage Project. Powin Energy is partnering with Hecate Energy to build, deliver, and install projects with a total capacity of 12.8 MW/52.8 MWh at two sites in Ontario. The projects will be split across two sites in Kitchener and Stratford, Ontario. The system in Stratford will be housed inside of a newly constructed building specifically designed to support twenty Powin Energy 2 MWh battery arrays. The systems will use Powin’s Stack140, a modular 140kW battery array that is scalable from 125kW to multiple megawatts. They will be powered by Powin’s bp-OS battery management software and Battery Odometer and Warranty Tracker.

About Powin Energy

Powin Energy Corporation (Powin Energy), formerly Powin Corporation, is a designer and developer of energy storage solutions for utilities, microgrid, and EV fast-charging stations. The company’s offerings include stack products such as Stack225, Stack230P, and Stack230. Its energy storage system management software, StackOS carries out battery safety and management, automated dispatching and system integration. Powin Energy also offers services such as renewable integration, solar integration, emergency management, and grid services. The company operates in Taiwan and the US. Powin Energy is headquartered in Tualatin, Oregon, the US.


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