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1080 MW Natural Gas operating in Potter, TX — Southwest Power Pool
1,080 MW
Nameplate Capacity
3
Generators
units
Natural Gas Steam Turbine
Technology
1976
Operating Since
Coordinates
35.2982, -101.7472
County
Potter, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Southwestern Public Service Co | Southwestern Public Service | — |
| Owner(s) | Southwestern Public Service Co | Xcel Energy | — |
| Status | Operating | — | — |
Harrington is a 1080 MW natural gas-fired power plant located in Potter County, Texas. The plant began operating in 1976 and consists of three natural gas steam turbine generators. It is owned by Xcel Energy and operated by Southwestern Public Service Co. Harrington is connected to the Southwest Power Pool (SPP) balancing authority and resides within the Midwest Reliability Organization (MRO) NERC region.
In the latest year of reported generation, Harrington produced 2,020,872 MWh of electricity, achieving a capacity factor of 21.3%. According to available data, the installed cost of the plant was $507.71 per kW. Harrington ranks as the 22nd largest power plant in Texas out of 144 facilities and 150th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
118.6K MWh
Latest Month
2.0M MWh
Annual Generation
21.3%
Capacity Factor
CO₂ Intensity
2367 lb/MWh
NOx
1 lb/MWh
SO₂
Steam turbine · Southwestern Public Service Company · Data from 2015–2024
$593/kW
Installed Cost
$11/kW
Annual CapEx
$38.8/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Harrington Switchyard · 230 kV
Substation Distance
< 10 km
Operator
Xcel Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
SPS.HARRNGTN1
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all 8 articlesSouthwest Power Pool (SWPP)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
7 lb/MWh
CH₄
0.263 lb/MWh
N₂O
0.038 lb/MWh
Capacity Factor
33.9%
Annual Net Gen
3211 GWh
CO₂eq
2385 lb/MWh
Subregion
SPP South