# Microsoft Project Osmium Data Center

MISO data center · https://askthegrid.com/assets/facilities/microsoft-project-osmium-data-center

Microsoft's Project Osmium campus is at 5855 SW Kerry St in West Des Moines, Warren County, Iowa. Announced in 2016 at $1.5 to $2 billion, it was planned in four phases on 200 acres; the Business Record lists 110 acres and 1,217,900 sq ft. Iowa DNR's Title V permit 24-TV-004 covers its emergency diesel generator engines, and DNR described the facility as existing in 2024. Microsoft's Iowa facilities use direct evaporative cooling.

## Identity and location

- Operating status: operating
- Asset scope: campus
- Location: 5855 SW Kerry St, West Des Moines, Warren County, IA
- Operator: Microsoft (campus) — https://local.microsoft.com

## Development

- Construction: Announced in 2016 as four phases on 200 acres in Warren and Madison counties, with buildings of 256,000 to 583,200 sq ft and about 1.7 million sq ft in total.

## Compute and operations

- Facility classes: hyperscale, cloud

## Sources

- [FRS Facility Detail Report | Envirofacts | US EPA](https://frs-public.epa.gov/ords/frs_public2/fii_query_dtl.disp_program_facility?p_registry_id=110070616781)
- [U.S. EPA Facility Registry Service location](https://frs-public.epa.gov/ords/frs_public2/frs_rest_services.get_facilities?registry_id=110070616781&output=JSON) — U.S. Environmental Protection Agency
- [https://local.microsoft.com/wp-content/uploads/2025/10/Microsoft-datacenters-in-Iowa.pdf](https://local.microsoft.com/wp-content/uploads/2025/10/Microsoft-datacenters-in-Iowa.pdf)
- [West Des Moines, IA : City News](https://web.archive.org/web/20160926170001/http://www.wdm.iowa.gov/Home/Components/News/News/4420)
- [Growth of data centers in Iowa - Business Record](https://www.businessrecord.com/growth-of-data-centers-in-iowa/)
- [Site plan approved for Microsoft's third building at Osmium data center - Business Record](https://www.businessrecord.com/site-plan-approved-for-microsofts-third-building-at-osmium-data-center/)
- [https://www.iowadnr.gov/media/6245/download?inline=](https://www.iowadnr.gov/media/6245/download?inline=)
- [Air quality permits for review, published 09/12/2024 | Department of Natural Resources](https://www.iowadnr.gov/news-release/2024-09-12/air-quality-permits-review-published-09122024)

## Data quality

- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.
- Map point: EPA Facility Registry Service location for the permitted facility.

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Canonical page: https://askthegrid.com/assets/facilities/microsoft-project-osmium-data-center
Profile generated: 2026-10-09T15:05:13.806846Z
Source: Ask the Grid — https://askthegrid.com/