Maddox — renewablesinfo.org

Maddox — Plant Summary

EIA Plant ID: 2446
Capacity: 212 MW
Primary Fuel: Natural Gas
Technology: Natural Gas Fired Combustion Turbine, Natural Gas Steam Turbine
Status: Operating
Location: Lea, NM
Operating Since: 1963
Generators: 3
Operator: Southwestern Public Service Co
Parent Company: Xcel Energy
Annual Generation: 571,910 MWh
Capacity Factor: 30.8%
Balancing Authority: Southwest Power Pool
ISO/RTO: SPP
NERC Region: MRO

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Maddox

OperatingNatural GasHybrid

Ranked #7 of 20 Natural Gas plants in NM#739 of 2009 nationally

212 MW Natural Gas Fired Combustion Turbine (98 MW) + Natural Gas Steam Turbine (114 MW) operating in Lea, NM — Southwest Power Pool

EIAGEMWD

212 MW

Nameplate Capacity

Generators

units

Hybrid (2)

Technology

Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine

1963

Operating Since

Location

Coordinates

32.7146, -103.3016

County

Lea, NM

Nearby Plants

Hobbs Generating Station
Natural Gas681.5 MW · 1.7 km
AC Ranch I
Solar75 MW · 3.2 km
AC Ranch II
Solar230 MW · 3.2 km

Ownership & Operator

Field	EIA	GEM	Wikidata
Operator	Southwestern Public Service Co	Southwestern Public Service	—
Owner(s)	Southwestern Public Service Co	Xcel Energy	—
Status	Operating	—	—

Ownership Chain

About

The Maddox plant is a 212 MW hybrid natural gas power plant located in Lea County, New Mexico. It began operating in 1963 and has 3 generators utilizing both natural gas-fired combustion turbine and natural gas steam turbine technologies. The plant is owned by Xcel Energy and operated by Southwestern Public Service Co. Maddox operates within the Southwest Power Pool (SPP) balancing authority and the broader MRO NERC region.

In the most recent year of data, Maddox generated 571,910 MWh of electricity, achieving a capacity factor of 30.8%. Maddox is ranked as the 7th largest power plant out of 11 in New Mexico, and 738th out of 945 nationally.

Generated from EIA, GEM, and public data sources

EIA Plant Profile Wikidata

Engineering & Generators