Quebec data centres and power context

Quebec's public facility record is concentrated in Greater Montreal, but the directory also carries operating or developing sites in Levis, Quebec City, Beauharnois, Drummondville and Rimouski. Those places support different operating cases. Downtown Montreal is an interconnection market. Technoparc and suburban sites provide larger footprints. Beauharnois and Levis show the role of land and power outside the core. A provincial count therefore needs to be read with the locality and record type, not as one uniform inventory.

Sources: Cologix, eStruxture, Vantage Data Centers, OVHcloud, QScale

The map uses official locality points rather than facility entrances or parcels. Several sites in Montreal share a generalized point even when the operator pages place them in distinct buildings or municipalities. This is deliberate. It supports regional research without presenting a map marker as a surveyed location. A reader comparing land, fibre or utility options should open the operator source and request current site information before drawing conclusions from marker proximity.

Sources: Natural Resources Canada, Cologix

Hydro-Quebec separates large-power customers by use and contract conditions. Rate L applies to an annual contract of at least 5,000 kW that is principally industrial, while Rate LG applies to an annual contract with a minimum billing demand of at least 5,000 kW that is not principally industrial. That distinction matters for a data-centre proposal. A public comparison should not assume that every large computing load qualifies for the same tariff or quote one cents-per-kilowatt-hour figure without demand, voltage, service and eligibility context.

Sources: Hydro-Québec

Minimum billing demand means the customer pays for a defined level of readiness even when monthly energy use falls below the contracted level. For a data centre, load factor, phased commissioning, redundancy tests and temporary construction demand can change the billing picture. Hydro-Quebec also publishes demand-response and equipment running-in options. These are commercial and operational terms to examine with the utility; they are not automatic savings and should not be inserted into a model until eligibility and performance obligations are confirmed.

Sources: Hydro-Québec

Hydro-Quebec directs large-power applicants through a formal request process. The utility states that a master electrician or consulting engineer must submit the official application, and projects at the large-power threshold follow the applicable assessment route. This means a proposed 20 MW or 100 MW site cannot be evaluated from tariff pages alone. Available supply, voltage, upstream work, substation scope, schedule and required studies determine whether the concept can become a service agreement.

Sources: Hydro-Québec

The practical sequence is to establish a credible load profile, operating ramp, redundancy philosophy and commissioning plan, then obtain the utility's project-specific response. A developer should distinguish requested capacity from firm contracted capacity, and firm capacity from the operator's marketed campus potential. The directory keeps those concepts separate. If an operator publishes a campus total, it appears as a provider claim. If the source does not publish a value for one building, the field stays unverified.

Sources: Hydro-Québec, QScale

Cologix identifies carrier-rich facilities in central Montreal as well as larger sites in the Technoparc, Longueuil and Drummondville. Its directory lists MTL1 through MTL12 and publishes selected facility details, including 25 MW and 120,000 square feet for MTL9 and 35 MW and 180,000 square feet for MTL10. These are operator-published values. They are useful for understanding the portfolio, but they do not establish available customer capacity or a utility commitment.

Sources: Cologix

Other operators add different shapes to the market. eStruxture lists five Montreal facilities and a developing Calgary project elsewhere in its Canadian portfolio. Vantage publishes several Quebec campuses. OVHcloud names Beauharnois. QScale publishes its Levis campus and a second building in development. The result is not one simple downtown cluster. It is a connected provincial system with interconnection buildings, enterprise colocation, hyperscale campuses, sovereign-compute projects and public-sector facilities.

Sources: eStruxture, Vantage Data Centers, OVHcloud, QScale

A cool climate can expand the hours available for economized cooling, but it does not remove electrical, mechanical or water constraints. Winter is also a period of high provincial demand. A facility team still needs a site-specific study of cooling architecture, heat rejection, freeze protection, generator starting, battery temperature, fuel delivery and maintenance access. The directory does not infer efficiency from latitude or treat a northern location as proof of lower operating cost.

Sources: Hydro-Québec

Hydroelectric supply is often part of Quebec's investment case, yet the grid connection remains local. A province can have substantial generation while a particular substation, corridor or project schedule remains constrained. The responsible comparison asks which voltage is available, what network reinforcement is required, how long the connection work may take and what curtailment or demand-response terms could apply. Those answers come from a utility study and negotiated service, not a provincial marketing line.

Sources: Hydro-Québec

Start with the facility list below, then open the source and specification table for each record. Capacity, building size, certifications, connectivity and ownership are separate fields with separate provenance. Unknown means the checked source did not publish a facility-specific value. It does not mean zero, absent or unavailable. This approach is slower than copying a commercial directory, but it makes the remaining uncertainty visible and gives a buyer or planner a precise question to take to the operator.

Sources: Cologix, Cologix

For site selection, compare at least four layers: operator and carrier fit, utility connection path, building and campus design, and the operational workload. A Montreal carrier hotel may be the right interconnection node while a larger suburban or regional site carries the main compute load. The map is a starting surface for that architecture. It is not a ranking, an availability feed or a design approval.

Sources: Cologix, Hydro-Québec