Amazon Madison Mega Site

Operating + expandingEst.AI campusCampusMadison County, Mississippi

Amazon Madison Mega Site is an operating + expanding ai campus in Mississippi. Operated or owned by Amazon Web Services. Current power: 341 MW (estimated). Planned capacity: 819 MW (estimated). Verification: verified operating. 12 cited sources.

80% profile completeness

42 claims from 12 sources

Last verified against sources: Oct 12, 2026

Newest dated evidence: Jun 4, 2026

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Cite this

Text

Datacenter Source. “Amazon Madison Mega Site.” /facilities/amazon-madison-mega-site-madison-county-ms. Data as of 2026-10-12. Accessed 2026-10-12.

BibTeX

@misc{datacentersource_amazon_madison_mega_site_madison_county__2026,
  title = {{Amazon Madison Mega Site}},
  author = {{Datacenter Source}},
  year = {2026},
  howpublished = {\url{/facilities/amazon-madison-mega-site-madison-county-ms}},
  note = {Data as of 2026-10-12; accessed 2026-10-12. Compiled from cited sources, including OpenStreetMap contributors (ODbL) and Epoch AI (CC BY 4.0)},
}

Please also cite the original source of any specific figure (linked beside it).

Current facility power

341 MW[1]

Est.Likelyestimated

Planned capacity

819 MW[1]

Est.Likelyestimated

Building footprint

1.07M sq ft[5]

Est.Likelyderived

Buildings (planned)

12[1]

Est.Likelyderived

Capital cost / investment

$10.8B[1]

Est.Likelyestimated

First operational

Jun 23, 2025[1]

Est.Likelyderived

POWER & GRID

Time-to-power · verification · interconnection

Time to power

Remaining capacity: H1 2027 – H2 2028

Medium confidencewindow, not a prediction

Project verification

Verified operating

Operation documented by satellite imagery.

Current stage

Operational

Furthest stage with documented evidence

Utility · ISO

Entergy · MISO

Substation: On-site substation

Power reality

Announced

819 MW[1]

Research estimate of planned capacity (no company figure found)

Interconnection request

No record

Contracted / approved

No record

Under construction

478 MW[1]

Buildings 6–7, Buildings 8–12 under construction (satellite-tracked phases)

Operational

341 MW[1]

Estimated from buildings observed operational

⚠ No public interconnection record for this load — MISO does not publish large-load requests.
⚠ No permit record linked to this site yet.

AI evidence brief

Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.

How the time-to-power window was estimated

Evidence used

Current stage: Operational (furthest stage with documented evidence)[1]
Stated date: Next projected milestone: 2027-03-01 (modeled/speculative)[1]
Required: 819 MW

Assumptions

From “Under construction”, large loads have typically taken 0.5–2 more years to first power (editorial range; see Methodology).
The window is a range of plausible outcomes under these assumptions, not a forecast. It moves as new filings, queue updates or imagery arrive.

Window: H1 2027 – H2 2028

Project verification

Development

Announcedimplied by a later stage
Land acquiredimplied by a later stage
Planning / zoningimplied by a later stage
Permittingimplied by a later stage

Grid interconnection

Interconnection application
Feasibility study
System impact study
Facilities study
Interconnection agreement / service contract

Build & energization

Financing
Under constructionOct 2, 2023
Model estimate · Satellite imagery
- Oct 2, 2023 · Reported status: under construction[1]
- Oct 2, 2023 · Construction start[1]
- Oct 2, 2023 · Land clearing begins[1]
- Jun 23, 2025 · Reported status: expanding[1]
EnergizationJun 23, 2025
Satellite imagery
- Jun 23, 2025 · Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.[1]
OperationalJun 23, 2025
Satellite imagery
- Jun 23, 2025 · Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.[1]

● documented · ◌ implied by a later stage · ○ no evidence found. Dates are those of the earliest dated evidence, which can be later than when a stage actually began. Evidence classes: Model estimate, Satellite imagery.

Grid path

facility
Amazon Madison Mega Site
→
substation
On-site substation[1]
Satellite imageryLikely
3 substation outlines traced inside the campus on satellite imagery
→
transmission
McAdams Sub ENTERGY to Lakeover Sub ENTERGY 500KV[5]
Proximity onlyUnverified
Highest-voltage line mapped within 2 km (1.93 km away). Not confirmed as the supply path.
→
utility
Entergy[2]
Service territoryLikely
Retail service territory containing the site
→
ISO / RTO
MISO[4]
Service territoryLikely
Balancing authority: MISO

Substation capacity:: not published
Required upgrades:: not yet sourced
Congestion:: not yet sourced (no nodal price data)

Dashed boxes are based on proximity only and do not establish which asset serves the site.

Interconnection records

No interconnection-queue record is linked to this site. Of the ISOs we ingest, only NYISO publishes large-load requests; PJM, ERCOT, MISO, SPP and CAISO queues list generation only.

On-site & dedicated generation

No on-site, behind-the-meter or dedicated generation found in sources.

LOCAL IMPACT

Water · generation · incentives · regulation · rates

Water & cooling

Not yet collected: we haven't found a source for water use or the cooling type at this site. Know one? Add a source

On-site generation & air permits

Not yet collected: we haven't found a source for on-site generation or an air permit for this site. Know one? Add a source

Incentives

Not yet collected: we haven't found a source for tax abatements, PILOTs or other incentives for this project. Know one? Add a source

Regulatory events

Not yet collected: we haven't found a source for hearings, rezonings, permits or commission proceedings. Know one? Add a source

Utility & rates

Not yet collected: we haven't found a source for a large-load tariff or commission docket for Entergy. Know one? Add a source

Location & imagery

Mapped outline

Coordinates: 32.59782, -90.09122
Address: Amazon Data Services Inc, Madison Mega Site Nissan Parkway and Highway 22 Canton, Mississippi Madison County[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likely
County: Madison County

Photographs

No openly licensed ground-level photos matched to this site yet.

Ownership, operation & customers

1. Property owner of record
Not identified
2. Owner / developer
Amazon Web Services[1]
3. Operator
Not identified
4. Tenant / cloud
Not identified
5. End customer / workload
Anthropic[1]Speculative

Power supply

Utility:

Entergy[2]Unverified

Each link is sourced separately. The property owner of record is often a special-purpose entity; the same company appearing in two roles is shown only when sources say so.

All parties with evidence

Owner: Amazon Web Services[1]Confirmed
End user: Anthropic[1]Speculative
Utility: Entergy[2]Unverified
Most likely retail provider among 2 overlapping service territories (largest retail sales; territory polygons are approximate). Also overlapping: Yazoo Valley Elec Power Assn.

Power (all fields)

Current facility power: 341 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated
Estimated total facility power (IT plus cooling and overhead) at the latest observed milestone.
Current IT capacity: 284 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated
Estimated IT load currently online, based on buildings observed operational.
Planned capacity: 819 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated
Projected facility power at the last tracked milestone (2028-03-15); not necessarily full build-out.
Estimated annual consumption: 2,091 GWh/yr[3]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Speculativeestimated
341 MW × 8,760 h × 70% utilization.

Capacity figures are nameplate or contracted; annual consumption is a labeled model estimate, not metered data.

Grid & electricity

ISO / RTO: MISO[4]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived
Location falls inside this ISO/RTO footprint.
Balancing authority: MISO[2]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived
Control area of the containing utility territory.
Nearest mapped substation: Unnamed substation (230 kV)[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.
Distance to substation: 0.7 km[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Highest-voltage line nearby: 500 kV[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Sep 28, 2026.Likelyderived
Highest-voltage transmission line mapped within 2 km.
State avg. industrial price: 7.66¢/kWh[7]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed
Mississippi statewide average, July 2026.
State avg. commercial price: 13.65¢/kWh[7]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed
Mississippi statewide average, July 2026.
Generation within 50 km: 806 MW[8]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jan 1, 202502.Confirmedderived
7 EIA-reported plants within 50 km.
Generation queued in county: 877 MW[6]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Confirmedderived
6 active generation interconnection requests in Madison County: Solar 407 MW, Storage 300 MW, Hybrid 170 MW. Queued projects often don't get built.
Interconnection status: Not yet sourced
Contracted / committed power: Not yet sourced

Nearby infrastructure	Type	Distance	Voltage / capacity	Source
230 kV line	Transmission line	0.65 km	230 kV	[5]
McAdams Sub ENTERGY to Lakeover Sub ENTERGY 500KV · Entergy Mississippi	Transmission line	1.93 km	500 kV	[5]
Ragsdale Solar LLC · Ragsdale Solar, LLC	Power plant (Solar)	9.2 km	100 MW	[8]
Hinds Energy Facility · Entergy Mississippi LLC	Power plant (Natural Gas)	27.2 km	473 MW	[8]
Mississippi Baptist Medical Center · Mississippi Baptist Medical	Power plant (Natural Gas)	32.7 km	4 MW	[8]
Pearl River Solar Park LLC · Pearl River Solar Park, LLC	Power plant (Solar)	34.2 km	175 MW	[8]
Lineage Ms · Madison Energy Holdings LLC	Power plant (Solar)	38.7 km	1 MW	[8]
Yazoo · Public Serv Comm of Yazoo City	Power plant (Natural Gas)	41.4 km	33 MW	[8]
Cf Industries Yazoo City Complex · CF Industries Nitrogen LLC	Power plant (Natural Gas)	43.4 km	20 MW	[8]
Unnamed substation	Substation	0.71 km	230 kV	[5]
Unnamed substation	Substation	1.03 km	230 kV	[5]

Largest queued generation in this county	Fuel	Queue status	MW	Source
J4154 at Andes SubstationMISO J4154	Storage	In study · proposed 2028-08	200 MW	[6]
J3049 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3049	Solar	In study · proposed 2024-12	188 MW	[6]
J3764 at Andes Substation 230 kVMISO J3764	Hybrid	In study · proposed 2028-03	170 MW	[6]
J3053 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3053	Solar	In study · proposed 2024-12	169 MW	[6]
J3093 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3093	Storage	In study · proposed 2024-12	100 MW	[6]
J1747 at J830 POIMISO J1747	Solar	Under construction · proposed 2022-02	50 MW	[6]

Utility, ISO and nearby assets are derived from the site's location. Proximity to a substation or line doesn't establish the interconnection; that needs a utility filing or interconnection-queue record. Queue requests are applications, not commitments — most never reach operation.

Construction & permitting

Announced
—
Land acquired
—
Permitting
—
Construction start
Oct 2, 2023[1]
First operational
Jun 23, 2025[1]
Expected completion
Mar 15, 2028[1]
Projected

Planned capacity: 819 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated
Projected facility power at the last tracked milestone (2028-03-15); not necessarily full build-out.
Buildings (planned): 12[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyderived
Count of building outlines traced on satellite imagery.
Buildings operational: 5[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated

Phase	Status	Added MW	Completed / expected	Source
Buildings 1–5	operational	341 MW	Jun 23, 2025	[1]
Buildings 6–7	under construction	137 MW	Mar 1, 2027 (projected)	[1]
Buildings 8–12	under construction	341 MW	Mar 15, 2028 (projected)	[1]

Real estate

Official assessments

Assessor's value for a tax year

None sourced yet

Recorded transactions

Sale prices from recorded deeds

None sourced yet

Model estimates

Our model — not an appraisal

None sourced yet

Capital cost / investment: $10.8B[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated
Modeled total capital cost (2025 USD) of capacity currently operational, incl. compute hardware.
Annual property tax: Not yet sourced

No county parcel or assessor records linked yet. County records are currently ingested for Loudoun County, VA and Maricopa County, AZ.

Size

Building footprint: 1.07M sq ft[5]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Likelyderived
Sum of 5 building outlines mapped in OpenStreetMap within this campus.
Floor area: Not yet sourced

Compute

Project: Project Rainier[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Speculative
Chip types: Trainium2[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Confirmed
Compute (H100-equivalents): 214,300[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jun 4, 2026.Likelyestimated

What changed (last 3 years)

Follow this facility (RSS)

Buildings operational
0Oct 2, 2023[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.→5Jun 23, 2025[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.
Status
Under constructionOct 2, 2023[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.→Operating + expandingJun 23, 2025[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.

Timeline

Construction start: Oct 2, 2023[1]

First operational: Jun 23, 2025[1]

Oct 2, 2023[1]
Land clearing begins
Mar 11, 2025[1]
Generators and chillers still being installed on buildings 1-5.
Jun 23, 2025341 MW facility power· 5 buildings operational[1]
Buildings 1-5 are operational, based on roofs being completed 5 months ago and generators being installed by 2025-04-10.
Oct 4, 2025341 MW facility power· 5 buildings operational[1]
Confirmation that five buildings are fully equipped with cooling and backup generators.
Jun 4, 2026341 MW facility power· 5 buildings operational[1]
Buildings 6 and 7 roof completed. Building 8 roof nearly completed. Building 9 roof half way up. No new operational buildings.
Mar 1, 2027Projected478 MW facility power· 7 buildings operational[1]
Buildings 6 and 7 operational, estimated from roofs having been completed 9 months ago (similar timeline to AWS buildings at New Carlisle in 2025).
Mar 15, 2028Projected819 MW facility power· 12 buildings operational[1]
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.

All claims (provenance audit)

Field	Value	Source	Confidence	As of	Status
Name	Amazon Madison Mega Site	[1]	Likely	2026-06-04	Shown
Status	Under construction	[1] derived	Likely	2023-10-02	Superseded / alternative
Status	Under construction	[1] derived	Likely	2025-03-11	Superseded / alternative
Status	Operating + expanding	[1] derived	Likely	2025-06-23	Superseded / alternative
Status	Operating + expanding	[1] derived	Likely	2025-10-04	Superseded / alternative
Status	Operating + expanding	[1] derived	Likely	2026-06-04	Shown
Facility type	AI campus	[1] derived	Likely	2026-06-04	Shown
Project	Project Rainier	[1]	Speculative	2026-06-04	Shown
Address	Amazon Data Services Inc, Madison Mega Site Nissan Parkway and Highway 22 Canton, Mississippi Madison County	[1]	Likely	2026-06-04	Shown
Owner	Amazon Web ServicesOwner: Amazon	[1]	Confirmed	2026-06-04	Shown
End users	AnthropicUsers: Anthropic	[1]	Speculative	2026-06-04	Shown
Utility	Entergyterritory 12685: ENTERGY MISSISSIPPI LLC (INVESTOR OWNED, ENTERGY CORP)	[2] derived	Unverified	2022	Shown
Current facility power	341 MW	[1] estimated	Likely	2026-06-04	Shown
Current facility power	341 MW	[1] estimated	Likely	2025-06-23	Superseded / alternative
Current facility power	341 MW	[1] estimated	Likely	2025-10-04	Superseded / alternative
Current IT capacity	284 MW	[1] estimated	Likely	2026-06-04	Shown
Current IT capacity	284 MW	[1] estimated	Likely	2025-06-23	Superseded / alternative
Current IT capacity	284 MW	[1] estimated	Likely	2025-10-04	Superseded / alternative
Planned capacity	819 MW	[1] estimated	Likely	2026-06-04	Shown
Estimated annual consumption	2,091 GWh/yr	[3] estimated	Speculative	2026-10-12	Shown
ISO / RTO	MISOMIDCONTINENT INDEPENDENT TRANSMISSION SYSTEM OPERATOR, INC..	[4] derived	Likely	—	Shown
Balancing authority	MISO	[2] derived	Likely	—	Shown
Nearest mapped substation	Unnamed substation (230 kV)way/1466908897	[5] derived	Likely	2026-09-28	Shown
Distance to substation	0.7 km	[5] derived	Likely	2026-09-28	Shown
Highest-voltage line nearby	500 kV	[5] derived	Likely	2026-09-28	Shown
Generation queued in county	877 MW	[6] derived	Confirmed	2026-10-12	Shown
State avg. industrial price	7.66¢/kWh	[7]	Confirmed	2026-07	Shown
State avg. commercial price	13.65¢/kWh	[7]	Confirmed	2026-07	Shown
Generation within 50 km	806 MW	[8] derived	Confirmed	202502	Shown
Buildings (planned)	12	[1] derived	Likely	2026-06-04	Shown
Buildings operational	5	[1] estimated	Likely	2026-06-04	Shown
Buildings operational	0	[1] estimated	Likely	2023-10-02	Superseded / alternative
Buildings operational	0	[1] estimated	Likely	2025-03-11	Superseded / alternative
Buildings operational	5	[1] estimated	Likely	2025-06-23	Superseded / alternative
Buildings operational	5	[1] estimated	Likely	2025-10-04	Superseded / alternative
Building footprint	1.07M sq ftway/1430720170 way/1430720171 way/1430720172 way/1430720173 way/1430720174	[5] derived	Likely	2026-10-12	Shown
Capital cost / investment	$10.8B	[1] estimated	Likely	2026-06-04	Shown
Compute (H100-equivalents)	214,300	[1] estimated	Likely	2026-06-04	Shown
Chip types	Trainium2	[1]	Confirmed	2026-06-04	Shown
Construction start	Oct 2, 2023	[1] derived	Likely	2026-06-04	Shown
First operational	Jun 23, 2025	[1] derived	Likely	2026-06-04	Shown
Expected completion	Mar 15, 2028	[1] estimated	Speculative	2026-06-04	Shown

Sources

[1]
AI data centers (Frontier Data Centers Hub)
Epoch AI · retrieved 2026-10-12 · CC BY 4.0
[2]
Electric Retail Service Territories (HIFLD, from EIA-861)
DHS HIFLD / U.S. EIA (via Esri Living Atlas) · retrieved 2026-09-28 · Public domain
[3]
Annual energy estimate
Datacenter Source (this site)
[4]
Independent System Operators (HIFLD)
DHS HIFLD (via PNNL ArcGIS) · retrieved 2026-09-28 · Public domain
[5]
OpenStreetMap — features tagged telecom=data_center or building=data_center
OpenStreetMap contributors · retrieved 2026-10-12 · ODbL 1.0
[6]
MISO Generator Interconnection Queue
Midcontinent ISO · retrieved 2026-10-12 · Public
[7]
Electric Power Monthly, Table 5.6.A — Average price of electricity to ultimate customers by state (July 2026)
U.S. Energy Information Administration · retrieved 2026-10-12 · Public domain
[8]
Power Plants in the U.S. (EIA-860)
U.S. Energy Information Administration · retrieved 2026-10-12 · Public domain
[9]
Air Construction Permit
Document mirror (Google Drive)
[10]
Backup diesel generator referenced in the permit
cat.com
[11]
New York Times article on Project Rainier
nytimes.com
[12]
SemiAnalysis article with imagery of Canton they have labeled as being an Amazon-Anthropic collaboration
SemiAnalysis

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Every value is a claim from a cited source. When sources disagree, the most trustworthy claim is shown and the others are listed beneath it.

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Evidence level: ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. filing, deed, permit or grid recordAnnouncedStated by the company or reported in the press; not yet backed by a filing or grid record. company or press claimEst.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. satellite, model or map inferenceHow levels are assigned

derived computed by our pipeline; estimated a model estimate, not a disclosed figure. Methodology →