Microsoft Corporation - Mke 3B Data Center
4800 90TH ST
Exact coordinate
Recorded as in service.
Status inferred from osm footprint+epa permit (Sun, 06 Se). No filing states it in as many words.
- Status
- Operating (inferred)
- Owner
- Microsoft
- Capacity
- 338 MW directory claim
- Location known to
- Exact coordinate
- County
- Racine County
- State
- Wisconsin
- Electric utility
- Wisconsin Electric Power Co
- Grid operator
- MISO
Location and nearby
Microsoft Corporation - Mke 3B Data Center is on record as operating in Racine County, Wisconsin. A directory lists its capacity at 338 MW; no filing we hold states a figure. 14 other campuses are on record within 25 miles, 7 of them within 5 miles. The nearest is 0.84 mi away.
Nearest of each kind: Operating 1.2 mi Proposed 0.84 mi
Nearest campuses on record
- 0.84 mi
Microsoft Fairwater B2 (MKE04)
Proposed · Racine County, WI
- 1.2 mi
Unnamed data center (way/919948160)
Operating · Racine County, WI
- 2.1 mi
Microsoft Fairwater B3 (Durand Ave)
Proposed · Racine County, WI
- 2.6 mi
Microsoft Fairwater B10 (Durand Ave)
Proposed · Racine County, WI
- 3.2 mi
Microsoft Fairwater B12 (International Dr)
Proposed · Racine County, WI
- 3.5 mi approximate
Microsoft Fairwater B16 (International Dr)
Proposed · Racine County, WI
What is on record
Owner
Microsoft Strong
The chain
-
permittee name as filed with EPA
MICROSOFT CORPORATION - MKE 3B DATA CENTER
EPA ECHO Exporter, all facilities (weekly refresh) · Sep 6, 2026
Filed by: MICROSOFT CORPORATION
- Address on file
- 4800 90TH ST
- Capacity
- 338 MW as reported by cleanview, not from a filing
- Diesel generators
- Air permit on record WI0000005510130249
- Water
- Not collected. State water withdrawal permits are not in this build.
- Electric utility
- Wisconsin Electric Power Co
- Also recorded as
- MICROSOFT CORPORATION - MKE 3B DATA CENTER · MKE 3B DATA CENTER · Microsoft Corporation · Microsoft Fairwater B1 (MKE03) · Microsoft Mount Pleasant (Fairwater Wisconsin) · Unnamed data center (way/1510420026)
How the status changed
- Operating May 8, 2026 inferred
osm footprint
Overpass data_center query, tile conus-c2 bbox 24.0,-95.0,50.0,-85.0
- Operating May 8, 2026 inferred
OSM footprint plus EPA permit
Overpass data_center query, tile conus-c2 bbox 24.0,-95.0,50.0,-85.0
- Under construction Jun 18, 2026 inferred
DCE status 'under_construction'
- Operating Sep 8, 2026 inferred
Cleanview status 'Operating'
Cleanview state pages: facility markers (id, name, coordinates, status, MW, county)
- Permitted Sep 6, 2026
epa air permit active
About this data
Evidence
Primary record
A government filing, a federal permit, an assessor parcel or the operator’s own page.
Location known to
Exact coordinate
A coordinate as filed with a government agency.
Independent sources
3
directory, federal permit, osm footprint. Directories count once between them, because they copy each other.
Spotted something wrong? Tell us and we will fix it.
Where this comes from
4 source records back this page. Each row is a document we retrieved and kept, so a claim can be checked against the original.
| Document | Role | Row | Date |
|---|---|---|---|
| EPA ECHO Exporter, all facilities (weekly refresh) US | Primary | REGISTRY_ID=110071538060 | Sep 6, 2026 last changed on the server |
| Overpass data_center query, tile conus-c2 bbox 24.0,-95.0,50.0,-85.0 US | Primary | osm=way/1510420026 | May 8, 2026 stated in the file |
| Cleanview state pages: facility markers (id, name, coordinates, status, MW, county) US | Primary | id=3968 | Sep 8, 2026 retrieved by us |
| dce tracker export (© DataCentersExposed contributors, datacentersexposed.com, ODbL 1.0. Contains data © OpenStreetMap contributors.) US | Primary | slug=microsoft-corporation-mke-3b-data-center-air-110071538060 | Jun 18, 2026 last changed on the server |
Cleanview (cleanview.co) © DataCentersExposed contributors, datacentersexposed.com, ODbL 1.0. Contains data © OpenStreetMap contributors.
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