Operational
Microsoft Project Osmium
Microsoft · Cumming, United States
Microsoft Project Osmium is a operational data center project in Cumming, United States. This record brings together its location, estimated IT capacity, construction timeline, water-disclosure gaps and original sources.
Epoch AI · Checked 2026-09-15 · Owner confidence: confident
AI data center listed by Epoch AI.
Request water-use information →Estimated operating IT capacity
190 MW
Source observation: 2026-06-16
Site water use
Not yet verified
No site-level value published in this atlas
Local water stress
Not yet assessed
Regional context has not been added
From information to action
Ask about this project’s water use.
Request figures, reporting periods and original documents. Edit the draft to reflect your questions and sign it with your name.
A project-specific public email has not been verified. Copy the request and use an official contact channel from the sources below, or suggest a sourced contact through the contribution form.
Read and edit the request
Opening a draft does not send an email. Review it in your email app before sending.
Project timeline
Source notes reproduced from Epoch AI. Future projections are excluded. Status may have changed since the latest observation.
No notable changes since October.
Site already complete.
Building 3-4 operational, no visible construction.
Building 2 is operational. Estimated based on Microsoft H100 count 2023
Building 1 and 1st building on the site are operational. Foundation work begins on Building 2
Land clearing begins on the north part of the site
Location
5855 SW Kerry St, Cumming, IA 50061
View the surrounding area ↗Sources & further reading
- Epoch AI — dataset and methodology ↗
- SemiAnalysis article with IT power estimations and detailing usage by OpenAI for training GPT 3.5 ↗
- DCD Article on site expansion ↗
- MISO Announcement reporting power for newest buildings, likely an overestimate ↗
- Microsoft article on data centers in Iowa used by OpenAI ↗
Dataset attribution: Epoch AI, CC BY.
Local context is still being researched
No independently reviewed permit summary or community report has been added here. This does not mean there are no permits, concerns or impacts.
Contribute local knowledge
Help fill in the picture.
Suggest a project, correction or local concern. Include a public source so an editor can review it. Reports are private until reviewed; submitting does not change the map.
Frequently asked questions about Microsoft Project Osmium
Where is Microsoft Project Osmium?
Microsoft Project Osmium is listed at 5855 SW Kerry St, Cumming, IA 50061. The project is in Cumming, United States.
How much power does Microsoft Project Osmium use?
The latest source-backed estimate in this atlas is 190 MW of operating IT capacity, observed for 2026-06-16. This is an estimate of computing capacity, not metered annual electricity consumption.
How much water does Microsoft Project Osmium use?
No verified site-level water withdrawal or consumption figure has been added to this atlas. A missing figure means the value is not verified here, not that the project uses no water.