DC
/

Amazon Madison Mega Site

Operating + expandingAI campusCampusMadison County, Mississippi
80% profile completeness
42 claims from 12 sources
Current facility power
341 MW[1]
Likelyestimated
Planned capacity
819 MW[1]
Likelyestimated
Building footprint
1.07M sq ft[5]
Likelyderived
Buildings (planned)
12[1]
Likelyderived
Capital cost / investment
$10.8B[1]
Likelyestimated
First operational
Jun 23, 2025[1]
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
  1. Announcedimplied by a later stage
  2. Land acquiredimplied by a later stage
  3. Planning / zoningimplied by a later stage
  4. Permittingimplied by a later stage
Grid interconnection
  1. Interconnection application
  2. Feasibility study
  3. System impact study
  4. Facilities study
  5. Interconnection agreement / service contract
Build & energization
  1. Financing
  2. 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]
  3. 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]
  4. 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

  1. facility
    Amazon Madison Mega Site
  2. substation
    On-site substation[1]
    Satellite imageryLikely
    3 substation outlines traced inside the campus on satellite imagery
  3. 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.
  4. utility
    Entergy[2]
    Service territoryLikely
    Retail service territory containing the site
  5. 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.

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]Likely
County
Madison County
Photographs

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

Ownership, operation & customers

  1. 1. Property owner of record
    Not identified
  2. 2. Owner / developer
    Amazon Web Services[1]
  3. 3. Operator
    Not identified
  4. 4. Tenant / cloud
    Not identified
  5. 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
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]Likelyestimated

Estimated total facility power (IT plus cooling and overhead) at the latest observed milestone.

Current IT capacity
284 MW[1]Likelyestimated

Estimated IT load currently online, based on buildings observed operational.

Planned capacity
819 MW[1]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]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]Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
MISO[2]Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Unnamed substation (230 kV)[5]Likelyderived

Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.

Distance to substation
0.7 km[5]Likelyderived
Highest-voltage line nearby
500 kV[5]Likelyderived

Highest-voltage transmission line mapped within 2 km.

State avg. industrial price
7.66¢/kWh[7]Confirmed

Mississippi statewide average, July 2026.

State avg. commercial price
13.65¢/kWh[7]Confirmed

Mississippi statewide average, July 2026.

Generation within 50 km
806 MW[8]Confirmedderived

7 EIA-reported plants within 50 km.

Generation queued in county
877 MW[6]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 infrastructureTypeDistanceVoltage / capacitySource
230 kV lineTransmission line0.65 km230 kV[5]
McAdams Sub ENTERGY to Lakeover Sub ENTERGY 500KV · Entergy MississippiTransmission line1.93 km500 kV[5]
Ragsdale Solar LLC · Ragsdale Solar, LLCPower plant (Solar)9.2 km100 MW[8]
Hinds Energy Facility · Entergy Mississippi LLCPower plant (Natural Gas)27.2 km473 MW[8]
Mississippi Baptist Medical Center · Mississippi Baptist MedicalPower plant (Natural Gas)32.7 km4 MW[8]
Pearl River Solar Park LLC · Pearl River Solar Park, LLCPower plant (Solar)34.2 km175 MW[8]
Lineage Ms · Madison Energy Holdings LLCPower plant (Solar)38.7 km1 MW[8]
Yazoo · Public Serv Comm of Yazoo CityPower plant (Natural Gas)41.4 km33 MW[8]
Cf Industries Yazoo City Complex · CF Industries Nitrogen LLCPower plant (Natural Gas)43.4 km20 MW[8]
Unnamed substationSubstation0.71 km230 kV[5]
Unnamed substationSubstation1.03 km230 kV[5]
Largest queued generation in this countyFuelQueue statusMWSource
J4154 at Andes SubstationMISO J4154StorageIn study · proposed 2028-08200 MW[6]
J3049 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3049SolarIn study · proposed 2024-12188 MW[6]
J3764 at Andes Substation 230 kVMISO J3764HybridIn study · proposed 2028-03170 MW[6]
J3053 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3053SolarIn study · proposed 2024-12169 MW[6]
J3093 at LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3093StorageIn study · proposed 2024-12100 MW[6]
J1747 at J830 POIMISO J1747SolarUnder construction · proposed 2022-0250 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

  1. Announced
    —
  2. Land acquired
    —
  3. Permitting
    —
  4. Construction start
    Oct 2, 2023[1]
  5. First operational
    Jun 23, 2025[1]
  6. Expected completion
    Mar 15, 2028[1]
    Projected
Planned capacity
819 MW[1]Likelyestimated

Projected facility power at the last tracked milestone (2028-03-15); not necessarily full build-out.

Buildings (planned)
12[1]Likelyderived

Count of building outlines traced on satellite imagery.

Buildings operational
5[1]Likelyestimated
PhaseStatusAdded MWCompleted / expectedSource
Buildings 1–5operational341 MWJun 23, 2025[1]
Buildings 6–7under construction137 MWMar 1, 2027 (projected)[1]
Buildings 8–12under construction341 MWMar 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]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]Likelyderived

Sum of 5 building outlines mapped in OpenStreetMap within this campus.

Floor area
Not yet sourced

Compute

Project
Project Rainier[1]Speculative
Chip types
Trainium2[1]Confirmed
Compute (H100-equivalents)
214,300[1]Likelyestimated

What changed (last 3 years)

Follow this facility (RSS)
  • Buildings operational
    0Oct 2, 2023[1]→5Jun 23, 2025[1]
  • Status
    Under constructionOct 2, 2023[1]→Operating + expandingJun 23, 2025[1]

Timeline

Construction start: Oct 2, 2023[1]
First operational: Jun 23, 2025[1]
  1. Oct 2, 2023[1]

    Land clearing begins

  2. Mar 11, 2025[1]

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

  3. 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.

  4. Oct 4, 2025341 MW facility power· 5 buildings operational[1]

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

  5. 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.

  6. 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).

  7. 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)

42
FieldValueSourceConfidenceAs ofStatus
NameAmazon Madison Mega Site[1] Likely2026-06-04Shown
StatusUnder construction[1] derivedLikely2023-10-02Superseded / alternative
StatusUnder construction[1] derivedLikely2025-03-11Superseded / alternative
StatusOperating + expanding[1] derivedLikely2025-06-23Superseded / alternative
StatusOperating + expanding[1] derivedLikely2025-10-04Superseded / alternative
StatusOperating + expanding[1] derivedLikely2026-06-04Shown
Facility typeAI campus[1] derivedLikely2026-06-04Shown
ProjectProject Rainier[1] Speculative2026-06-04Shown
AddressAmazon Data Services Inc, Madison Mega Site Nissan Parkway and Highway 22 Canton, Mississippi Madison County[1] Likely2026-06-04Shown
OwnerAmazon Web ServicesOwner: Amazon[1] Confirmed2026-06-04Shown
End usersAnthropicUsers: Anthropic[1] Speculative2026-06-04Shown
UtilityEntergyterritory 12685: ENTERGY MISSISSIPPI LLC (INVESTOR OWNED, ENTERGY CORP)[2] derivedUnverified2022Shown
Current facility power341 MW[1] estimatedLikely2026-06-04Shown
Current facility power341 MW[1] estimatedLikely2025-06-23Superseded / alternative
Current facility power341 MW[1] estimatedLikely2025-10-04Superseded / alternative
Current IT capacity284 MW[1] estimatedLikely2026-06-04Shown
Current IT capacity284 MW[1] estimatedLikely2025-06-23Superseded / alternative
Current IT capacity284 MW[1] estimatedLikely2025-10-04Superseded / alternative
Planned capacity819 MW[1] estimatedLikely2026-06-04Shown
Estimated annual consumption2,091 GWh/yr[3] estimatedSpeculative2026-09-29Shown
ISO / RTOMISOMIDCONTINENT INDEPENDENT TRANSMISSION SYSTEM OPERATOR, INC..[4] derivedLikely—Shown
Balancing authorityMISO[2] derivedLikely—Shown
Nearest mapped substationUnnamed substation (230 kV)way/1466908897[5] derivedLikely2026-09-28Shown
Distance to substation0.7 km[5] derivedLikely2026-09-28Shown
Highest-voltage line nearby500 kV[5] derivedLikely2026-09-28Shown
Generation queued in county877 MW[6] derivedConfirmed2026-09-27Shown
State avg. industrial price7.66¢/kWh[7] Confirmed2026-07Shown
State avg. commercial price13.65¢/kWh[7] Confirmed2026-07Shown
Generation within 50 km806 MW[8] derivedConfirmed202502Shown
Buildings (planned)12[1] derivedLikely2026-06-04Shown
Buildings operational5[1] estimatedLikely2026-06-04Shown
Buildings operational0[1] estimatedLikely2023-10-02Superseded / alternative
Buildings operational0[1] estimatedLikely2025-03-11Superseded / alternative
Buildings operational5[1] estimatedLikely2025-06-23Superseded / alternative
Buildings operational5[1] estimatedLikely2025-10-04Superseded / alternative
Building footprint1.07M sq ftway/1430720170 way/1430720171 way/1430720172 way/1430720173 way/1430720174[5] derivedLikely2026-09-27Shown
Capital cost / investment$10.8B[1] estimatedLikely2026-06-04Shown
Compute (H100-equivalents)214,300[1] estimatedLikely2026-06-04Shown
Chip typesTrainium2[1] Confirmed2026-06-04Shown
Construction startOct 2, 2023[1] derivedLikely2026-06-04Shown
First operationalJun 23, 2025[1] derivedLikely2026-06-04Shown
Expected completionMar 15, 2028[1] estimatedSpeculative2026-06-04Shown