Amazon · Canton, Mississippi

Amazon Madison Mega Site

341MW

The power of 280,000 US homes.

Drawing power since Jun 2025. Projected to reach 819 MW by Mar 2028.

Capital cost
$10.8B
Chips
Trainium2
Users
Anthropic (unconfirmed)
Project
Project Rainier
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Power over time

facility power · 7 milestones
Every milestone
  1. 2 Oct 2023 — Land clearing begins
  2. 11 Mar 2025 — Generators and chillers still being installed on buildings 1-5.
  3. 23 Jun 2025 341 MW Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.
  4. 4 Oct 2025 341 MW Confirmation that five buildings are fully equipped with cooling and backup generators.
  5. 4 Jun 2026 341 MW Buildings 6 and 7 roof completed. Building 8 roof nearly completed. Building 9 roof half way up. No new operational buildings.
  6. 1 Mar 2027 · projected 478 MW Buildings 6 and 7 operational, estimated from roofs having been completed 9 months ago (similar timeline to AWS buildings at New Carlisle in 2025).
  7. 15 Mar 2028 · projected 819 MW 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. This final estimates adds three months to that for server installation.

Every step Epoch planned here on 2 Sep 2026 is still on plan. Planned against reached

Gas made 37% of the power on this site's grid

net generation by fuel · Oct 2025 to Sep 2026

Midcontinent Independent Transmission System Operator, Inc. MISO · balancing authority

  1. Gas 37%
  2. Coal 26%
  3. Nuclear 14%
  4. Wind 15%
  5. Solar 6%
  6. Hydro 1%
  7. Other 1%

The grid of the utilities that serve Madison County, MS. Each grid is a balancing authority. Generation only; imports are excluded. Every grid behind an AI site.

Owners plan 819 MW of new power in Madison County, all gas

power plants in Madison County · EIA-860M, September 2026
  1. Traceview Advanced Power Station Gas · 819 MW · Aug 2028 · being built · Entergy Mississippi LLC

In service in Madison County today: 100 MW. Since January 2023: 100 MW added, 0 MW retired. A plant in the same county does not mean it feeds the site. Power plants near every AI site.

Sources

selected by Epoch AI
  1. Air Construction Permit
  2. Backup diesel generator referenced in the permit
  3. New York Times article on Project Rainier
  4. SemiAnalysis article with imagery of Canton they have labeled as being an Amazon-Anthropic collaboration

Data: Epoch AI, “AI data centers”, CC BY 4.0, retrieved 22 Oct 2026. Facility power adds cooling and other overhead to the IT power the servers draw. Placed at the centre of Canton. Grid: U.S. Energy Information Administration, Hourly Electric Grid Monitor (Form EIA-930), public domain, retrieved 16 Oct 2026; utilities by county from Form EIA-861 and the U.S. Census Bureau Geocoder, public domain. Power plants: U.S. Energy Information Administration, Form EIA-860M, public domain, inventory as of September 2026. All sources.