Canada has 89 mapped data-centre sites. Most are in Ontario and Quebec.

• Ontario33
• Quebec23
• Alberta16
• British Columbia13
• New Brunswick2
• Saskatchewan1
• Manitoba1

The useful question is what each facility asks of the local grid, water system, public budget, and disclosure record.

• Electricity is the binding constraint

  The issue is not only national electricity totals. Large facilities create concentrated loads that can test local transmission, winter peaks, tariffs, and queue rules.

  Question to ask: Who pays for connection, transmission, and any firm capacity the project needs?

  Sources: International Energy Agency · Canada Energy Regulator · Innovation, Science and Economic Development Canada

• The sovereign-compute path is now project-screened

  ISED's closed intake targeted large-scale AI data-centre proposals above 100 MW and asked proponents to show Canadian-client benefits, Indigenous participation, environmental impacts, supply-chain fit, readiness, and cost structure.

  Question to ask: Which proposed projects move from intake to an MOU, and what public benefits are attached?

  Sources: Innovation, Science and Economic Development Canada

• Low-carbon grids lower operating emissions, not public tradeoffs

  Hydro- and nuclear-heavy grids can make operating emissions much lower, but scarce clean electricity still has an opportunity cost for homes, industry, exports, and electrification.

  Question to ask: What public value is created in exchange for priority access to clean power?

  Sources: GHG Protocol · Hydro-Quebec · Government of British Columbia

• Water impact is local and design-dependent

  Cooling water cannot be read from a national average. Direct cooling, indirect electricity-related water, local basin stress, and drought protocols all change the answer.

  Question to ask: What water source, cooling design, and drought rule applies to the specific site?

  Sources: npj Clean Water · Environmental Research Letters · Natural Resources Canada

• Operating emissions are only one layer

  A serious assessment separates location-based grid emissions, market-based renewable claims, construction, cooling plant, servers, chips, and replacement cycles.

  Question to ask: Is the claim about annual power use, real-time grid impact, or full life-cycle impact?

  Sources: GHG Protocol · Science · International Energy Agency

• Economic gains are real but narrower than announcements imply

  Construction work, tax revenue, and procurement can matter. Permanent operating jobs are usually smaller, and public subsidies need a clear benefit test.

  Question to ask: How many permanent jobs, what local procurement, and what enforceable community benefit are attached?

  Sources: Canada Energy Regulator · Government of British Columbia · Hydro-Quebec

• Public reporting is still too thin

  Facility-level MW, PUE, WUE, water source, backup generation, hourly load shape, and effective clean-energy matching are often missing from public records.

  Question to ask: What is reported by facility, and what remains modelled or unknown?

  Sources: Natural Resources Canada · npj Clean Water · GHG Protocol

The clean-grid advantage is real, while the public questions are shifting toward firm power, disclosure, and enforceable local benefit.

Canada

Canada already has a substantial data-centre base, but public facility-level operating data remains uneven.A national count is useful for scale, but local load, cooling, and grid effects still need project-level disclosure.

Canada

Since September 2026, builders can sign five voluntary federal principles on local benefits, electricity costs, water, transparency and strategic value; 42 organizations had signed by September 22.The principles are voluntary, so what matters is whether signatories publish the local effects they commit to disclose.

Ontario / Alberta

Ontario and Alberta are now treating AI/data-centre growth as an electricity-allocation and economic-development question.Project timing, location, tariff design, domestic data-hosting value, and grid readiness matter as much as the headline announcement.

B.C. / Quebec / Manitoba

B.C.'s active competitive process puts as much as 400 MW over two years behind a benefits-based screen for AI and data-centre projects; other hydro-rich provinces are also moving toward pricing and uncertainty management.Clean electricity is an advantage, but it is still a public allocation question, not a free pass.