Canton, Mississippi

Amazon Madison Mega Site

Operating, expanding checked 1 Nov 2026

284 MWpower online now

819 MWpeak planned or projected

$10.8Bestimated capital cost, built so far

MSMississippi

Facts

Owner: Amazon
Main user: Anthropic
Project: Project Rainier
Chips: Trainium2

Timeline

2023-10-02

Land clearing begins

2025-03-11

Generators and chillers still being installed on buildings 1-5.

2025-06-23

Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.

341 MW

2025-10-04

Confirmation that five buildings are fully equipped with cooling and backup generators.

341 MW

2026-06-04

Buildings 6 and 7 roof completed. Building 8 roof nearly completed. Building 9 roof half way up. No new operational buildings.

341 MW

2027-03-01 (projected)

Buildings 6 and 7 operational, estimated from roofs having been completed 9 months ago (similar timeline to AWS buildings at New Carlisle in 2025).

478 MW

2028-03-15 (projected)

Buildings 8-12 are operational. In June of 2026 only a faint outline of buildings 10,11 and 12 is visible, estimating construction completion to be the end of 2027, alligning with [expected completion by 2027](https://www.datacenterdynamics.com/en/news/aws-confirmed-as-company-behind-10bn-mississippi-data-center-development/). This final estimates adds three months to that for server installation.

819 MW

Past entries are observations; entries marked projected are estimates and can change.

Sources (checked 1 Nov 2026)

Data: Epoch AI, AI data centers dataset, licensed CC BY 4.0. We selected fields, cleaned location names, and added the status label.