DEPLOY

Data center campus

Microsoft Fairwater Data Center (Mount Pleasant)

Microsoft Fairwater Data Center is an AI data center campus developed by Microsoft in Wisconsin, Mount Pleasant. 0.45 GW of capacity has been announced; 0.37 GW is energized. The gap is what this page tracks: what is claimed versus what is actually built, each figure dated and sourced.

Partially energized · Microsoft · Former industrial site · MISO · Mount Pleasant, Wisconsin, United States

Track Microsoft Fairwater Data Center (Mount Pleasant)

Capacity: announced vs energized

Contracted
not recorded

Announced-to-energized gap: 0.08 GW. Every figure below is a single dated, sourced claim. Current best per series resolves by evidence tier, then date. See the methodology.

61st-largest announced of 97 tracked campuses4th by energized capacity8th percentile announced-to-energized gap≈ 365,000 homes of power at full announced capacity (basis)

Promised online: Q1 2026. Energized capacity is now on record. Claimed by Microsoft (source).

Microsoft Fairwater Data Center (Mount Pleasant) capacity claims
Source
Announced0.45 GW2025-01-01reportedutility filing
Energized0.37 GW2026-04-16reportedjournalist report
Under construction2.26 GW2028-05-13claimedjournalist report

Construction evidence

Dated satellite imagery of the site itself, oldest to newest, with the campus milestones that landed in each window. This is what the site looked like from orbit while announcements, permits, and energizations were dated into our ledger, so bare land, grading, and building mass tell their own story alongside the paper trail. Sentinel-2 true color, 10 m resolution, cloud-free scenes; click any frame to expand it.

Delivery paceAnnounced Q1 2025 · live Q2 2026 · 1 yr 4 mo build

2018-05-16Contains modified Copernicus Sentinel data 2018
2020-05-20Contains modified Copernicus Sentinel data 2020
2022-07-14Contains modified Copernicus Sentinel data 2022
2025-09-16Contains modified Copernicus Sentinel data 2025

Dated Sentinel-2 imagery, gated to hand-verified site coordinates. Milestones synthesized from the campus's own capacity ledger, financial claims, and lifecycle events; each chip links to its source. How we source and verify it: satellite construction evidence.

Per-building manifest tied to the site polygons and imagery. When we know a building's outline we render it; when we know only its year and capacity we still surface those as first-class rows so the campus total is auditable, not a headline claim. Sorted largest-first; 3 on record.

Building 4
Building sqft: 300,572
polygon on record (9 vertices)
DC Building 3
Building sqft: 287,286
polygon on record (5 vertices)
Building 5
Building sqft: 112,058
polygon on record (5 vertices)

Manifest totals: 699,916 sqft. Rolled from the per-building rows above.

Key facts

partially energized

Lifecycle

0.45 GW

Announced

0.37 GW

Energized

Microsoft

Developer

United States

Location

MISO

Grid

former industrial site

Land

5

Facilities tracked

On the data center map

Every tracked data center is on this map, centered on Microsoft Fairwater Data Center. Pan or zoom out to see how close rivals are building.

Free to use on your site, with a link back to DEPLOY.
The story of Microsoft Fairwater Data Center (Mount Pleasant)
Announced capex
$3.3B
Tenant
Microsoft / OpenAI
Derived
Cost per MW
$7M/MW

Every figure is one row in the ledger below with its source. Derived rows are pure arithmetic on the rows above (not new claims). Absent lines mean the fact isn't on record yet.

In clusterWisconsin(43)

The deal

tenant
Microsoft / OpenAI · Self-tenant AI supercompute (Azure).
chip supplier
NVIDIA · GB200/B200-class GPUs (Epoch cites B200).
utility
We Energies · Regulated monopoly; sole grid power supplier, building new gas generation.
grid operator
MISO · We Energies operates within MISO.
developer
Microsoft · Owner-operator; Fairwater flagship AI datacenter on former Foxconn land.

Power

Power source
grid
Grid operator
MISO
Interconnection
Water
Closed-loop liquid cooling filled once at construction with no ongoing water draw and no evaporation across about 90% of capacity; the remaining ~10% uses outdoor-air cooling and taps water only during peak summer heat. Microsoft compares annual water use to a single restaurant.

We Energies Oak Creek gas plant (5 simple-cycle turbines), 1.10 GW gas, Permitted. 1,100 MW proposed at the Oak Creek coal site; first turbine delivery May 2026, operations winter 2027-summer 2028.

We Energies Paris gas plant (Kenosha County), 0.13 GW gas, Permitted. 128 MW gas plant near Paris, WI; part of ~$2.77B of PSC-approved generation/transmission justified on Microsoft load.

The MISO grid demand right now: 74.6 GW (EIA-930, 2026-09-27 18:00). Microsoft Fairwater Data Center's announced 0.45 GW would be 0.6% of the grid's current load.

County water status: No drought in Racine County, week of 2026-09-22 (US Drought Monitor). Data centers are large water users for cooling; this is the neutral local water picture.

Silicon on site

Every AI chip publicly attributed to Microsoft Fairwater Data Center (Mount Pleasant) on the DEPLOY registry. Quantity hints are unstructured because underlying disclosures vary by an order of magnitude. Source links per row.

  1. as of 2025-01-01

    Blackwell-generation AI datacenter (Fairwater flagship); Microsoft's next-generation closed-loop cooled AI DC design

    reported

    Microsoft

Why here

Microsoft Fairwater Data Center sits on former industrial site in Wisconsin, Mount Pleasant. It connects to the MISO grid, draws on grid power. This siting summary is composed from the record's held fields, not speculation; see methodology.

Financial structure

Microsoft Mount Pleasant campus investment (announced)
$3.3B. Initial announced investment; Epoch estimates ~$14B deployed to date and ~$85B at full buildout. press release

Regulatory paper trail

The filings and rules on record for this site and its jurisdiction, most recent first. Each is a sourced, dated artifact you can follow to the primary document.

NHTSA Recall: Zoox Robotaxi Software Update for Heavy Smoke Visibility (26E044)operational restriction · 2026-07-15 · United States
FCC Proposed Fines Against Drone Companies (July 2026)other · 2026-07-10 · United States
FAA Proposed Rule: Enabling Supersonic Overland Flight (July 2026)operational restriction · 2026-07-02 · United States

Facilities at this campus

Timeline

  2. Aug 2026
    party added
    grid_operator: MISO
  3. Sep 2026
    Current: Partially energized

Sources

824d3b90-2903-4335-9716-8f73fb969f7a · Tracked with DEPLOY's verified-vs-claimed methodology. Every term is defined in the glossary. Announced numbers are claims, not built capacity.

Head-to-head

Microsoft Fairwater Data Center vs Microsoft Cheyenne Data Center Campus →Microsoft Fairwater Data Center vs Microsoft Fairwater Atlanta / QTS Fayetteville Campus →Microsoft Fairwater Data Center vs Microsoft La Porte Data Center Campus →Microsoft Fairwater Data Center vs Nscale Barstow AI Data Center →Microsoft Fairwater Data Center vs Khazna QAJ1 Ajman AI-Optimized Data Center →

Common questions

What is Microsoft Fairwater Data Center (Mount Pleasant)?
Microsoft Fairwater Data Center (Mount Pleasant) is an AI data center campus tracked on the DEPLOY registry, located in Mount Pleasant. DEPLOY records its capacity as a dated, sourced ledger: announced gigawatts versus actually energized gigawatts, never a press-release total.
How much power will Microsoft Fairwater Data Center (Mount Pleasant) use?
Microsoft Fairwater Data Center (Mount Pleasant) has 0.45 GW of announced capacity on the DEPLOY registry, of which 0.37 GW is recorded as energized, an announced-to-energized gap of 0.08 GW. Each figure is individually dated and sourced.
Who is building Microsoft Fairwater Data Center (Mount Pleasant)?
Microsoft is recorded as a party to Microsoft Fairwater Data Center (Mount Pleasant) on the DEPLOY registry. The full party list, with each role, is on the record.
Is Microsoft Fairwater Data Center (Mount Pleasant) operating yet?
As of the most recent verification on the DEPLOY registry, Microsoft Fairwater Data Center (Mount Pleasant) is partially energized. DEPLOY tracks the lifecycle from announced through energized, so the current state reflects sourced evidence, not the original announcement.
How verified is the data on Microsoft Fairwater Data Center (Mount Pleasant)?
A human editor has reviewed this record for the indexed registry. Every capacity figure is an append-only, dated claim resolved to the highest-evidence tier; superseded claims are kept but excluded from the current view.

Deploy Watch

Track Microsoft Fairwater Data Center (Mount Pleasant) on Deploy.

We notify you when energized capacity, lifecycle state, or a new dated capacity claim changes against primary-source evidence, not when the developer issues a press release.

Cite this page

DEPLOY. (2026). Microsoft Fairwater Data Center (Mount Pleasant): AI data center campus record. Retrieved September 27, 2026, from https://registry.deploy.report/datacenters/microsoft-fairwater-wisconsin

More citation formats (MLA, Chicago, BibTeX) →
CC BY 4.0

The verified data on this page is available under a Creative Commons Attribution 4.0 license: reuse the facts freely, with attribution to DEPLOY (deploy.report). The prose, design, and any imagery are not included and keep their own rights.

Machine-readable surfaces