Amazon Madison Mega Site
Part of Project Rainier. Chip types: Trainium2. Epoch AI estimates ~284 MW.
Key facts
- Operator
- Amazon
- Owner
- Amazon
- Tenant
- Anthropic
- Size
- 284 MW
- Location
- Canton (Madison County), Mississippi
- Stage today
Source
read 2026-08-14
What to do next
Next step: Already operating — the leverage now is enforcement: noise and water conditions, tax revenue tracking, and any expansion filing, which reopens the record.
What has happened so far (8 events)
- 2024-01-25announcement
Amazon Web Services announced plans to invest $10 billion to build multiple data center complexes in two Madison County industrial parks, creating at least 1,000 high-paying jobs, with a 10-year, 100% corporate income tax exemption incentive package. · source - 2024-05-20construction
AWS held a ceremonial groundbreaking at the Madison County Mega Site spec building, attended by Governor Tate Reeves, Senators Roger Wicker and Cindy Hyde-Smith, and Representatives Michael Guest and Bennie Thompson. · source - 2025-10-29operational
AWS's Project Rainier — the AI training cluster powering Anthropic's Claude, spread across Pennsylvania, Indiana, and Mississippi — was reported operational, with its Mississippi campus near Canton in Madison County cited at more than 350 MW of IT capacity and set to ramp past 1 GW. · source - 2026-02-19coverage
Residents of the Idlebriar subdivision in Canton, next to the Amazon data center construction site, reported two years of construction dust, noise and traffic, with one resident's teenage daughter having multiple ER visits for asthma flare-ups the prior year, while the Madison County Economic Development Authority said it lacks funds to buy out the subdivision. · source - 2026-04-09announcement
Governor Tate Reeves and Amazon announced an additional $11 billion expansion of Madison County data center operations (700 new jobs) plus a $1 billion facility in Clinton/Hinds County (100 jobs), bringing Amazon total Mississippi investment commitment to $25 billion and over 2,000 jobs. · source - 2026-04-10environmental
Coverage noted Amazon's environmental commitments: Canton will use recycled water for cooling, the Ridgeland campus will draw groundwater only 9% of the time, and the Clinton facility will operate without water, alongside plans for over 800 diesel generators across the Madison County campuses. · source - 2026-04-22coverage
Canton residents described construction dust, noise and pollution fears; Madison County constable Johnny Sims said construction dust had worsened his teenage daughter's asthma, and Amazon stated it is committed to being a responsible community partner. · source - 2026-06-09coverage
Of Amazon four announced Mississippi data center facilities, the Canton campus in Madison County was reported as the one currently operating, with more than 700 diesel generators planned across the two Madison County campuses and the Canton facility set to transition to 100% recycled wastewater for cooling by 2027. · source
Find the paper trail
Find the paper trail (0 filed · 11 places to look)
State environmental permits
Backup generators, water withdrawal and stormwater are permitted by the state, usually earlier and in more detail than anything filed locally.
- Mississippi DEQ — Air DivisionThe program page: which permits this state requires, and the office that issues them.
- Search Mississippi DEQ — Air Division for this projectsearchThis state publishes no searchable permit database, so a written records request to the agency is the reliable route. Use this search only to find the right office.
County & town filings
The rezoning application, site plan, traffic and noise studies, staff report and every revision.
- Search Canton (Madison County) planning filingssearchPlanning departments post application files under many different names. Find the department, then ask the clerk for the application number — that number unlocks everything else.
- Search Canton (Madison County) property records / GISsearchThe parcel record names the buying LLC and the sale date, which is what ties an anonymous filing to an operator.
Utility & grid records
The electricity request is filed with the grid operator and the utility long before the town hears about it — and states the real load.
- MISO (Midwest & Gulf) — interconnection queueRequested megawatts, queue position and target in-service date. The MW here is the real number; the one at the town meeting is often phase one.
- Mississippi Public Service Commission — docket searchSpecial contracts, large-load tariffs and rate cases are docketed here. Testimony and exhibits are public, and are usually more candid than the press release.
- FERC eLibraryFederal filings: transmission agreements, interconnection service agreements, and co-location disputes.
- Search the serving utility for a will-serve lettersearchThe will-serve or load-service letter is the utility's own written commitment. Ask the utility and the PUC for it by name — it is frequently the first document to exist.
Federal databases
Works anywhere, and covers the operator's record at its other sites.
- EPA ECHO facility searchEvery federally-reported air, water and waste permit at a facility, plus its inspection and violation history. Search by address or draw a radius around the site. This project's locality centres on 32.610, -90.030 — search that point with a 5-mile radius.
- EPA EnvirofactsThe same underlying records, queryable by county — useful for 'what else is permitted near this site' rather than one facility.
- EPA Facility Registry ServiceResolves the shell LLC on a permit to the facility it belongs to. Worth a look when the filing name means nothing locally.
These are places to look, not evidence that anything has been filed. Links were checked on 2026-08-21; search links are queries, not records. What to ask for.
Around here
- Mississippi briefing — rates, grid carbon, PUC contacts.
Other tracked projects in Mississippi
- AWS Madison County data center campuses — Madison County, 1 mi Proposed
- Amazon Ridgeland — Ridgeland, 14 mi Under construction
- Saxum Investment Data Center — Jackson, 22 mi In review
- Clarksdale hyperscale data center site — Clarksdale (Coahoma County), 114 mi In review
- Compass Datacenters Meridian — Meridian Under construction
Cite this page: GridWatch AI, “Amazon Madison Mega Site”, aigridwatch.com/projects/amazon-madison-mega-site, retrieved 2026-10-11.
As of August 2026 (2m ago) · changes weekly — re-check before citing
A working set of identified proposals a community can track, not a census — most of the country's activity is not in here yet. Pennsylvania is the exception: its rows are synced from PA DEP's own data-center permit tracker, so the state's coverage is close to complete and carries the permit trail with it. **Each row carries its own provenance.** Rows showing a verification date link to reporting or the governing body's own record and were read on that date; rows marked *unverified* have no source on record — a lead to check, not a fact to cite. **Stage is derived, not asserted.** *Hearing scheduled*, *Awaiting decision*, *Approved* and *Withdrawn* are computed from each row's milestone dates on every rebuild, so a hearing date that has passed stops reading 'scheduled'. Hearings get moved and projects re-file under new names — treat a scheduled date as the earliest to act by, and confirm with the clerk before relying on it. Leads are mined into data/project_candidates.json and promoted here only after a human reads a primary source.
Part of the data center project tracker — open data, CC BY 4.0 (JSON · CSV).