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Comanche (CO) — Power plant · Coal · Public Service Co of ColoradoVestas Towers America, Inc. — Wind · CO · 3 MW · 5.6 km awayArroyo Solar — Solar · CO · 335 MW · 5.6 km awayStagecoach LRE — Solar · CO · 230 MW · 7.3 km awayWaxwing Solar CSG — Solar · CO · 3 MW · 10.0 km awayPueblo Airport Generating Station — Storage · CO · 50 MW · 13.2 km awayPueblo Airport Generating Station — Gas, combustion turbine · CO · 100 MW · 13.2 km away
  • Combustion
  • Wind & solar
  • Storage
  • In development
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Comanche (CO)

Power plant · Coal

Key facts

Power plant · Coalran 38% of 2025 Retiring
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1975
Net generation, 2025
4,164,592 MWh
Grid
345 kV, 230 kV to Public Service Co of Colorado (WACM)
Location
Pueblo County, Colorado

Output

Net generation MWh by year, 2001 to 2026
Fuel burned MMBtu by year, 2001 to 2026
  • Gas
  • Coal

Operations detail

Details

Who’s behind it

Owner
Xcel Energy, Public Service Co of Colorado, CORE Electric Cooperative and 3 more

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Technology
Coal source: “Conventional Steam Coal”
Age
51 years since 1975
Heat rate
10,126 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Parents
Name
Xcel Energy Inc
Share pct
100
Gem entity id
E100000001329
Name
CORE Electric Cooperative
Share pct
25.30
Gem entity id
E100001001222
Name
Holy Cross Electric Association Inc
Share pct
8
Gem entity id
E100001001318
Unit ids
G100000101678, G100000101679, G100000101680
Location id
L100000103807
EPA greenhouse gas reporting (GHGRP)
EPA FRS ID
110000467851
Subparts reported
C, D
NAICS code
221112
Subpart PP (CO2 supply)
No
Subpart RR (geologic sequestration)
No
Subpart UU (CO2 injection)
No
Reporting year
2023
GHGRP facility ID
1001462
Fuel burned (MMBtu), 202542,170,170
Capacity factor, 20250.380
Heat rate (Btu/kWh), 202510,125.9
Net generation (MWh), 20254,164,592.0
Balancing authority codeWACM

Retirement

EIA-860M September 2026StatusAt least half of the plant's in-service nameplate capacity is scheduled to retire, on dates its owner has reported to EIA. As of EIA-860M for September 2026.
Capacity retired
382.5 MW
Generators retired
1
Next scheduled retirement
December 2026
Last scheduled retirement
December 2030
Capacity scheduled to retire
1,252.8 MW
Generators scheduled to retire
2
Share of in-service capacity scheduled
100%
Capacity still in service
1,252.8 MW
GeneratorTechnologyNameplateStateDate
1Conventional Steam Coal382.5 MWRetiredDecember 2022
2Conventional Steam Coal396 MWScheduled to retireDecember 2026
3Conventional Steam Coal856.8 MWScheduled to retireDecember 2030

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
345 kV, 230 kV
Transmission or distribution system owner
Public Service Co of Colorado
Balancing authority
Western Area Power Administration - Rocky Mountain Region
NERC region
WECC
Can the connection be reused?

A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.

Ownership

6 companies7
CompanyRoleShareAs ofSource
Public Service Co of Colorado Operator EIA-860M
Xcel Energy Owner 82.5% 31 Dec 2023 EPA GHGRP
HOLY CROSS ELECTRIC ASSOC INC Owner 4.2% 31 Dec 2023 EPA GHGRP
INTERMOUNTAIN RURAL ELECTRIC ASSOC Owner 13.3% 31 Dec 2023 EPA GHGRP
Holy Cross Electric Assn, Inc Owner 5.5% 31 Dec 2025 EIA-860
CORE Electric Cooperative Owner 17.3% 31 Dec 2025 EIA-860
Public Service Co of Colorado Owner 45.6% 31 Dec 2025 EIA-860

Timeline

  • Stated Unit 3 scheduled to retire, 856.8 MW · EIA-860M
  • Stated Unit 2 scheduled to retire, 396 MW · EIA-860M
  • Stated Unit 1 scheduled to retire, 382.5 MW · EIA-860M
  • In service · EIA-860M

Sources

6 sources

Sources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT) · EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules

Sources

Every source and license · Attribution

View at source

Around this plant

Nearby

within 25 km
ProjectKindAwayMW
Vestas Towers America, Inc. Postponed Wind 5.6 km 3
Arroyo Solar Under construction Solar 5.6 km 335
Stagecoach LRE Permitted Solar 7.3 km 230
Waxwing Solar CSG Under construction Solar 10.0 km 3
Pueblo Airport Generating Station × 2 units Studied Storage 13.2 km 150

Sources EIA-860M · Berkeley Lab

Sources

  • EIA-860M Preliminary Monthly Electric Generator InventoryOpen license · retrieved 4 Nov 2026
  • LBNL "Queued Up" project-level interconnection queue data file (non-ISO regions)Open license, with credit · retrieved 4 Nov 2026Lawrence Berkeley National Laboratory and GridTracker, Queued Up data file (2026 edition), CC BY 4.0. Modified by Inframation: non-ISO and MISO regions only; MISO rows labelled with the date the file's queue data runs to; statuses and technologies mapped to Inframation's vocabulary. Queued Up Data File. Copyright (c) 2026, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from the U.S. Dept. of Energy) & GridTracker.

Attribution