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Plant X — Power plant · Gas, steam turbine · Southwestern Public Service Co
  • Combustion
  • Operating
  • 10 · 100 · 1,000 MW

Plant X

Power plant · Gas, steam turbine

Key facts

Power plant · Gas, steam turbineran 35% of 2025 Retiring
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1964
Net generation, 2025
585,833 MWh
Grid
230 kV, 115 kV to Southwestern Public Service Co (SWPP)
Location
Lamb County, Texas

Output

Net generation MWh by year, 2001 to 2025
Fuel burned MMBtu by year, 2001 to 2025
  • Gas
  • Oil

Operations detail

Details

Who’s behind it

Owner
Xcel Energy

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Technology
Gas, steam turbine source: “Natural Gas Steam Turbine”
Age
62 years since 1964
Heat rate
9,320 Btu/kWh 2025
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
EPA greenhouse gas reporting (GHGRP)
EPA FRS ID
110071161581
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
1006577
Fuel burned (MMBtu), 20255,460,142
Capacity factor, 20250.351
Heat rate (Btu/kWh), 20259,320.3
Net generation (MWh), 2025585,833
Balancing authority codeSWPP

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
244 MW
Generators retired
3
Next scheduled retirement
December 2027
Capacity scheduled to retire
190.4 MW
Generators scheduled to retire
1
Share of in-service capacity scheduled
100%
Capacity still in service
190.4 MW
GeneratorTechnologyNameplateStateDate
3Natural Gas Steam Turbine98 MWRetiredDecember 2022
1Natural Gas Steam Turbine48 MWRetiredDecember 2023
2Natural Gas Steam Turbine98 MWRetiredDecember 2023
4Natural Gas Steam Turbine190.4 MWScheduled to retireDecember 2027

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
230 kV, 115 kV
Transmission or distribution system owner
Southwestern Public Service Co
Balancing authority
Southwest Power Pool
NERC region
MRO
Transmission lines within 15 mi (10)
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

2 companies2
CompanyRoleShareAs ofSource
Southwestern Public Service Co Operator EIA-860M
Xcel Energy Owner 100.0% Dec 31, 2023 EPA GHGRP

Timeline

  • Stated Unit 4 scheduled to retire, 190.4 MW · EIA-860M
  • Stated Units 1, 2 scheduled to retire, 146 MW · EIA-860M
  • Stated Unit 3 scheduled to retire, 98 MW · EIA-860M
  • In service · EIA-860M

Sources

5 sources

Sources EIA-860M · OpenStreetMap · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)

© OpenStreetMap contributors

Sources

Every source and license · Attribution

View at source