Power plant · New Mexico, United States
Maddox Power Plant
Maddox Power Plant is a gas power plant in New Mexico, United States, with 212 MW of capacity, owned by Southwestern Public Service Co.
Grid connection
114 MW of its 212 MW is due to retire in 2028, which frees up that much of its grid connection at 115 kV to the grid of Southwestern Public Service Co.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | New Mexico | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Operating | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1963 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Southwestern Public Service Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Southwestern Public Service Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 212 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Natural Gas Steam Turbine | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Grid operator | Southwestern Public Service Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Voltage | 115 kV | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Planned retirement | 2034 (98.4 MW retiring, 2 units, planned retirement reported to eia) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Planned retirement | 2028 (114 MW retiring, 1 unit, planned retirement reported to eia) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 32.7142, -103.3015 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
Research on this power plant and its owner.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the owner.
Request researchHow it compares
Maddox is the 10th-largest of 13 power plants in New Mexico and the 901st-largest of 1,009 in the United States by capacity; its 212 MW is <0.1% of the 917,512 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| New Mexico | 10th of 13 | 7,275 MW | 2.9% |
| United States | 901st of 1,009 | 917,512 MW | <0.1% |
| All power plants in our data | 1,841st of 15,799 | 1,918,113 MW | <0.1% |
Nearby
Within 50 km of this power plant: 763 water rights, measured from the coordinates in the facts above. The table shows the nearest 3.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Lea County groundwater basin water right L-05176 | Water right | — | — | 0.1 km |
| Lea County groundwater basin water right L-01108 | Water right | — | — | 1.6 km |
| Lea County groundwater basin water right L-04663 | Water right | — | — | 1.9 km |
Owner, operator, grid operator and place
More from Southwestern Public Service Co
- Project Matador Gas Plant (PMG)11,679 MW · permitted
- Project Matador Nuclear4,468 MW · planned
- Tolk1,136 MW
- Harrington1,080 MW
- Jones860 MW
- Hobbs Generating Station682 MW
- Elk Station599 MW
- Sagamore Wind522 MW
Other power plants in New Mexico
- San Juan1,848 MW
- Four Corners1,636 MW
- Hobbs Generating Station682 MW
- Luna Energy Facility650 MW
- Sagamore Wind522 MW
- Arroyo Solar Energy Storage Hybrid450 MW
- Cunningham444 MW
- Rio Grande348 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- New Mexico Office of the State Engineer points of diversion (WATERS). New Mexico Office of the State Engineer points of diversion (WATERS), Terms not verified.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- Wikidata. Wikidata, CC0 1.0.