TC Energy will start studying the aquatic environment this fall in the areas surrounding the proposed Pumped Storage Project location. We will be gathering data on Georgian Bay’s fish, ecosystem and water quality to help guide ongoing Project design and feasibility studies that will eventually feed into formal environmental assessment processes, should the Project progress.
Safety is TC Energy’s number one value and our main concern is for all our employees, their families and the communities surrounding our footprint who are impacted by the COVID-19 pandemic. TC Energy and our contractors are committed to adhering to public health guidance, as well as internal safe work practices and protocols, to keep our workers and neighbours safe.
North South Consultants, working for ERM Consultants, have been hired on behalf of TC Energy to conduct aquatic studies.
The aquatics work is being conducted under permit issued by the Ontario Ministry of Natural Resources and Forests (MNRF) and in compliance with MNRF protocols. In addition, the project is officially registered with the Ministry of Environment, Conservation and Parks (MECP) in relation to the MNRF permit.
The studies need to extend beyond the project area to fully understand the broader aquatic environment and any potential impacts the project could have. This is why the study area extends beyond the limits of the DND hazard zone.
A new Regional Economic Study by ERM Consultants Canada Ltd., a third-party consultant with expertise in socio-economic assessment, shows the TC Energy Pumped Storage Project in southern Ontario would have immense economic benefits locally, regionally and provincially.
The Regional Study Area (RSA) includes Bruce, Grey and Simcoe Counties in Southern Ontario.
View and download the ERM Regional Economic Study
TC Energy retained Navigant to perform an economic analysis of the proposed Pumped Storage Project with two focus areas:
The Navigant team completed a rigorous economic analysis and simulation of the Ontario electricity market, calculating the ratepayer and CO2 emissions impacts of the project by running simulations with and without the project.
View and download reportView and download infographic
spent on labour, equipment and materials
in provincial tax revenue for Ontario
in Gross Domestic Product (GDP)
TC Energy is currently conducting a number of preliminary field studies at the proposed project site to support the feasibility assessment. These studies will help provide insight for TC Energy, the Department of National Defence (DND) and the community as to whether 4th CDTC is a feasible location for a proposed pumped storage facility from an engineering and environmental perspective.
The following provides an overview of the specific feasibility assessments that are currently underway and how these studies will help inform TC Energy’s assessment of the project site.
Underwater depth of Georgian Bay lakebed.
A multibeam echosounder (a type of sonar) is mounted to a boat and pings a beam of sound to the lake floor.
Assesses and supports the design of the intake and discharge structures and provides inputs to 3D hydraulic modelling, which studies water flow in and out of the lake and water turbidity.
Lakebed characteristics such as sediment texture, consistency and smell.
A hand-operated dredge sampler is dropped to the lakebed from a boat. Sediments are then sent to a laboratory for testing.
Supports the design of the intake and discharge structures, provides inputs to 3D hydraulic modelling, which studies water flow in and out of the lake and water turbidity.
Characterizes the overburden materials, bedrock elevations and quality of bedrock. Also establishes groundwater levels.
Boreholes are drilled at various depths into the soil and bedrock with a drill rig.
Supports the design of the reservoir, penstocks and powerhouse by determining what the ground is made of and its characteristics.