Powering the Digital Economy: How Municipalities Can Balance Data Centres and Community Priorities

The proposals arriving at Canadian municipalities now are not the data centres of ten years ago. They are larger, they draw far more power and water, and they tend to come with timelines that leave a council little room to work out its position from scratch.

A serious proposal brings real money: construction investment, tax revenue, local purchasing and, in some cases, a durable employment base. It also brings questions about electricity, water, land, noise and infrastructure that cut across half the organization. The job for municipal leaders is to get those two conversations into the same room early, and to set out local expectations before an application lands rather than after.

Demand Is Growing Quickly

Federal projections have electricity consumed by Canadian data centres rising from roughly three terawatt-hours in 2025 to 11 terawatt-hours by 2030 and 16 by 2035. The Canada Energy Regulator expects near-term growth to concentrate in Ontario, Alberta and Quebec, though interest is showing up across the country.

Ontario's Independent Electricity System Operator now projects data centres will account for 8.6% of provincial electricity demand by 2050, roughly 60% higher than its previous estimate. As of August 2026 the province reported approximately 7,000 megawatts of data centre connection requests, double the figure reported in March. For scale, Ontario's peak demand is around 25,000 megawatts. Not every request becomes a project, but the volume explains why governments and utilities are building new assessment processes at speed.

Alberta has seen the same pattern. Large-load connection requests to the Alberta Electric System Operator climbed past 16,000 megawatts, against a provincial peak demand of roughly 12,000. AESO responded with a one-time interim limit of 1,200 megawatts for its first phase of connections, targeting a 2027/2028 horizon. In Quebec, Hydro-Québec has proposed a separate rate for large data centres and expects sector peak demand near 1,000 megawatts by 2035.

Understanding the Opportunity

More Canadian computing capacity strengthens the domestic technology sector and gives Canadian organizations more options for keeping sensitive information in the country. At the municipal level the case is more concrete: construction investment, assessment growth, local procurement and skilled employment.

Ontario's proposed Data Centre Playbook, posted for public comment on August 13, 2026, identifies economic development, data security, digital sovereignty and community investment as the considerations to weigh when evaluating a project, and pushes proponents to demonstrate durable local benefit through employment, supplier participation and training. The accompanying proposal would place large new data centres in their own electricity rate class, paying the full cost of their energy with no cash incentives.

The value varies enormously between projects. A facility can occupy a large parcel of employment land and require significant servicing while creating relatively few permanent positions. Setting construction employment, permanent jobs, tax revenue and local procurement against the land and infrastructure required is what turns general enthusiasm into a specific judgment.

Looking at the Full Infrastructure Picture

Electricity gets the attention, but it is rarely the only constraint. A large facility may also need water and wastewater capacity, fibre, road access, emergency response coverage and upgrades to local utility infrastructure. What it needs depends heavily on its size, its cooling technology and how it is operated.

Getting planning, economic development, IT, finance, public works, environmental services and the local utility into the conversation early is what surfaces the capacity questions while there is still time to answer them. The core questions are straightforward: how much electricity and water, how demand behaves at peak, what upgrades are required, and who pays for them.

Then there is the long view. Data centre technology moves quickly, and facilities expand or increase their computing density after they are built. Municipal agreements and approval conditions can address future phases, infrastructure monitoring, performance reporting and what happens at closure or redevelopment.

Finding the Right Community Fit

Where a facility goes and how it is designed shapes everything about how the community experiences it. Reviews typically consider land use compatibility, distance from residential areas, equipment noise, vibration, heat, backup generation, emissions and building massing.

Several Ontario municipalities have decided they need time. Oakville council approved a one-year interim control by-law in August 2026 while it studies electricity and water requirements, noise, environmental effects and infrastructure capacity. Mississauga council directed staff on July 30 to prepare a similar by-law pausing approvals for up to a year, alongside a review of infrastructure, economic, environmental, energy and water impacts. Toronto has requested a full examination covering energy, water, wastewater, noise, heat, employment, public health and community engagement.

These are responses to a gap. Most official plans and zoning by-laws were written without this use in mind. Updated definitions, zoning provisions, servicing requirements, noise standards and application guidelines give residents, staff and developers a process everyone can predict.

Using Technology to Reduce Local Impacts

Design choices make a substantial difference. Closed-loop cooling limits ongoing water consumption, which is why Ontario's proposed framework points to it directly. Advanced monitoring improves energy and water efficiency. Equipment placement, setbacks and acoustic treatment manage noise at the property line.

Waste heat is the more interesting opportunity. Heat from servers can supply district energy systems, nearby buildings, greenhouses or industrial processes, though whether it works depends on temperature, distance, year-round demand and project economics. That is a feasibility question worth asking early, when the answer can still influence siting.

Municipalities can ask proponents to explain how their facility compares with current efficiency standards, what they will report, and how environmental commitments will be monitored. That moves the conversation off general claims about data centres and onto this specific building.

Building Public Confidence

Residents need to know what is proposed, how it will operate, what has been studied and how conditions will be enforced. Engagement also surfaces local priorities that a developer might address through infrastructure improvements, workforce programs or community amenities.

The part most often forgotten is what happens after construction. Reporting on electricity and water use, noise, emissions, incidents and progress against community commitments is how residents and staff find out whether the facility is performing as promised. Assigned responsibilities, measurable standards and accessible reporting are what make that reporting mean something.

Preparing for the Decisions Ahead

Data centres are becoming part of Canada's economic infrastructure, and the proposals will keep coming. Municipalities can get ahead of them by reviewing where these facilities fit within official plans, zoning frameworks, economic strategies, infrastructure plans and environmental commitments, and by setting up an internal process that brings the right departments and agencies in early.

The question is fit: between the proposed facility, the available infrastructure, community priorities and where the municipality wants to be in twenty years. Working that out before an application arrives is considerably easier than working it out afterward.