POWER & FACILITY EVIDENCE

Power and Facility Evidence Database

Review power assets, contract observations, facility specifications and relationships from public sources.

This partial collection preserves source-level observations. Generation and registered connection capacity are distinct from spare supply capacity for data centers. Planned dates and contract announcements do not confirm energization or supply commencement.

Current filters 3items · current page 1–3 · Source records, not unique facilities.

Power assets and projects · USA · eia860m

Madison Dam / MAD4

Generator · Retired

Metric or conditionSource valueBasis, scope and stage
Nameplate Capacity (MW)2.2 MWOriginal source column definition · Generator · Retired
As-of date 2026-08
Sources EV-6cddd0fc26209f7689bbf5ec
Net Summer Capacity (MW)3.7 MWOriginal source column definition · Generator · Retired
As-of date 2026-08
Sources EV-6cddd0fc26209f7689bbf5ec
Net Winter Capacity (MW)3.7 MWOriginal source column definition · Generator · Retired
As-of date 2026-08
Sources EV-6cddd0fc26209f7689bbf5ec
Detailed source fields
Original source fieldPublished value or condition
Entity ID13902
Entity NameNorthWestern Energy (MT Hydro)
Plant ID6422
Plant NameMadison Dam
Google MapMap
Bing MapMap
Plant StateMT
CountyMadison
Balancing Authority CodeNWMT
SectorElectric Utility
Generator IDMAD4
Nameplate Capacity (MW)2.2
Net Summer Capacity (MW)3.7
Net Winter Capacity (MW)3.7
TechnologyConventional Hydroelectric
Energy Source CodeWAT
Prime Mover CodeHY
Operating Month7
Operating Year1908
Retirement Month10
Retirement Year2019
Latitude45.487869
Longitude-111.6338
Original textRetired
Coordinate accuracysource_precision_not_independently_surveyed
source_record_idRetired:2025

Parent facility or plant record

Coordinates locate the plant, including when this record describes one generator.

Location: Plant location · not an individual generator location

Sources, reference dates and retrieval dates 2items
eia860 ↗

Data Source 2025 · Retrieved 2026-10-05

Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.

Source location 3_1_Generator_Y2025.xlsx#Retired and Canceled:2631

Sources EV-4088cfe1a295a6f8c3f6ac63
Evidence SHA-256 2b27929d26cc1da9ad6a530da1cac6718cd8496098ee560c4d47cfffd96d08ba
행 SHA-256 477ffee40613cac3d2a1c37c2f6a9184c5f9e255b16860e94d6528086aae899e

Usage terms US government public domain

eia860m ↗

Data Source 2026-08 · Retrieved 2026-10-05

Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.

Source location Retired:2025

Sources EV-6cddd0fc26209f7689bbf5ec
Evidence SHA-256 b4b70abb4c217e8e2658c3bde7608a3d530e86a81279ccc572ced82a200e9f1c
행 SHA-256 77db4cb5e2f04e397cdd31c513a1fb8dd6e47085bab2c9752539cd317fd28769

Usage terms US government public domain

Source snapshots by date · USA · eia860

Madison Dam / MAD4

Generator · Retired

Metric or conditionSource valueBasis, scope and stage
Detailed source fields
Original source fieldPublished value or condition
Utility ID13902
Utility NameNorthWestern Energy (MT Hydro)
Plant Code6422
Plant NameMadison Dam
StateMT
CountyMadison
Generator IDMAD4
TechnologyConventional Hydroelectric
Prime MoverHY
OwnershipS
Duct BurnersX
Can Bypass Heat Recovery Steam Generator?X
RTO/ISO LMP Node DesignationNA
RTO/ISO Location Designation for Reporting Wholesale Sales Data to FERCNA
Nameplate Capacity (MW)2.2
Nameplate Power Factor1
Summer Capacity (MW)3.7
Winter Capacity (MW)3.7
Minimum Load (MW)1
Uprate or Derate Completed During YearN
StatusRE
Synchronized to Transmission GridX
Operating Month7
Operating Year1908
Retirement Month10
Retirement Year2019
Associated with Combined Heat and Power SystemN
Sector NameElectric Utility
Sector1
Topping or BottomingX
Energy Source 1WAT
Solid Fuel Gasification System?N
Carbon Capture Technology?N
Time from Cold Shutdown to Full Load10M
Multiple Fuels?N
Original textRE
source_record_id3_1_Generator_Y2025.xlsx#Retired and Canceled:2631

Parent facility or plant record

No separate metric summary is available. Consult the detailed source fields.

Sources, reference dates and retrieval dates 1items
eia860 ↗

Data Source 2025 · Retrieved 2026-10-05

Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.

Source location 3_1_Generator_Y2025.xlsx#Retired and Canceled:2631

Sources EV-4088cfe1a295a6f8c3f6ac63
Evidence SHA-256 2b27929d26cc1da9ad6a530da1cac6718cd8496098ee560c4d47cfffd96d08ba
행 SHA-256 477ffee40613cac3d2a1c37c2f6a9184c5f9e255b16860e94d6528086aae899e

Usage terms US government public domain

Source snapshots by date · USA · eia860m

Madison Dam / MAD4

Generator · Retired

Metric or conditionSource valueBasis, scope and stage
Detailed source fields
Original source fieldPublished value or condition
Entity ID13902
Entity NameNorthWestern Energy (MT Hydro)
Plant ID6422
Plant NameMadison Dam
Google MapMap
Bing MapMap
Plant StateMT
CountyMadison
Balancing Authority CodeNWMT
SectorElectric Utility
Generator IDMAD4
Nameplate Capacity (MW)2.2
Net Summer Capacity (MW)3.7
Net Winter Capacity (MW)3.7
TechnologyConventional Hydroelectric
Energy Source CodeWAT
Prime Mover CodeHY
Operating Month7
Operating Year1908
Retirement Month10
Retirement Year2019
Latitude45.487869
Longitude-111.6338
Original textRetired
source_record_idRetired:2025

Parent facility or plant record

No separate metric summary is available. Consult the detailed source fields.

Sources, reference dates and retrieval dates 1items
eia860m ↗

Data Source 2026-08 · Retrieved 2026-10-05

Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.

Source location Retired:2025

Sources EV-6cddd0fc26209f7689bbf5ec
Evidence SHA-256 b4b70abb4c217e8e2658c3bde7608a3d530e86a81279ccc572ced82a200e9f1c
행 SHA-256 77db4cb5e2f04e397cdd31c513a1fb8dd6e47085bab2c9752539cd317fd28769

Usage terms US government public domain

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