Halton Hills Generating Station upgrade

Atura Power is planning to make efficiency upgrades at our Halton Hills Generating Station (HHGS). HHGS has been operating since 2010 in the Town of Halton Hills, between Highway 401 and Steeles Ave., West of 6th Line. It’s capable of outputting 683 megawatts (MW) to Ontario’s electricity grid.

Project overview

A map showing the location of Halton Hills Generating Station in Ontario.

Upgrading the equipment at HHGS will increase its generating capacity by 27 MW to an output of 710 MW. The upgrades will be limited to replacing parts of the existing natural gas fired combustion turbines. All upgrade activities will take place within the existing facility and there will be no changes or expansion beyond the existing HHGS footprint.

What's being upgraded?

The upgrades will include replacing parts of the existing natural gas fired combustion turbines with parts that will allow for an increased electrical output. The work is similar to regular facility maintenance activities and will be confined to the existing facility footprint. There will be no change or expansion of the existing HHGS footprint.

Environmental screening process and project timeline

Since the upgrading will result in a 27 MW increase in the electrical output of HHGS, it is subject to the Environmental Screening Process for Electricity Projects per Ontario Regulation 116/01, under the Ontario Environmental Assessment Act. A Notice of Commencement of a Screening and Invitation to a Virtual Public Meeting was issued on May 19, 2023, to communicate the start of the Environmental Screening Process.

Request for exemption

Given that that proposed upgrades to the HHGS are minor - similar to routine maintenance activities - and contained entirely withing the footprint of the existing facility, Atura Power is requesting that the Ontario Ministry of Environment, Conservation and Parks grant an exemption to the Environmental Assessment Act for this project.

We want to hear from you

Atura Power is committed to engaging with Indigenous communities, the public, agencies and other interested parties on all our projects. A public meeting was held on June 15, 2023, to learn about the proposed efficiency upgrades and share feedback, and materials from that meeting are posted below.

Access to information for everyone is important to us, so please let us know if you have accommodation needs related to the meeting materials through the Contact us form below.

Contact us

Comments and information regarding this project are being collected in accordance with the Freedom of Information and Protection of Privacy Act for the purpose of meeting environmental assessment requirements. With the exception of personal information, all comments received will become part of the project record.