Microsoft Markham AI
Microsoft Azure · Langstaff
- Planned IT
- 112 MW
- Remaining
- 112 MW
- $ / kW·mo
- $84
- White space
- 224k ft²
Inventory
0% occupiedPower
112 MWcampus
112 MW pipeline · 0 MW in use
White space
224k ft²total
224k ft² free · — occupied
21k m² · 21k m² free
Remaining power is campus IT not yet commissioned — captive capacity, not third-party colo.
Power
Power cost
$84/kW·mo
10.4¢ industrial · 11.4¢ after PUE 1.10
- Per MW·year
- $1M
- This site · 112 MW
- $112M/yr
- 80 kW rack
- $6,681/mo
3.3× the cheapest market (Iceland Landsvirkjun). Same IT load there is $78M/yr less.
Alectra / IESO · utility tariff × PUE, not colo list price.
- Redundancy
- N+1
- Opened
- 2027
- Renewable match
- 85%
- Rack density
- 80 kW
- PUE
- 1.101.00 ideal · 1.60 typical
- Power source
- Alectra / Hydro One / IESO. Dual feeds plus on-site diesel. GTA suburban delivery.
Cooling
Plant
Direct-to-chip
Liquid
Deployed
Rack density
80 kW
H100-eq
10k
WUE
0.27 L/kWh
fleet avg · 2025 · 265k m³/yr at 112 MW
Operator fleet average applied to this hall — not a site meter. Microsoft FY2025 water intensity disclosure.
Direct-to-chip cold plates and rear-door HX. Designed for 40 kW-plus AI racks.
Network carriers
6On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
1Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Markham, Ontario, Canada
Langstaff Road, Markham, ON
43.818°, -79.398° · North America
Tenants / users
Azure OpenAI, Copilot, Canadian training
Notes
112 MW training-focused megaproject. Largest tracked Microsoft AI hall in Canada. North-GTA construction pipeline. Dual-site with Vaughan YTO11.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.