Private company

Luminant

Logo: http://www.luminantbrand.com/luminant/img/ext/login_photo.jpg, Non-free logo, via Wikipedia3

Electric utility company

Luminant is a Texas-based electric utility. It is a wholly owned subsidiary of Energy Future Holdings Corporation. Luminant's operations include electricity generation and wholesaling, mining, construction, and development.2 It is part of Vistra.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Luminant is a Texas-based electric utility. It is a wholly owned subsidiary of Energy Future Holdings Corporation. Luminant's operations include electricity generation and wholesaling, mining, construction, and development. The company has capacity for the generation of 18,300 megawatts (MW) of electricity in 20 power plants spread across Texas, of which 2,300 MW come from nuclear power generated at the company's Comanche Peak Nuclear Power Plant, 5,800 MW from coal-fired power plants, and the remainder from natural gas-fired plants. Luminant is also a major purchaser of wind power.2

Corporate structure

Luminant is part of a group headed by Vistra. 64 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Vistra Irving, Texas, United States
    • Luminant Dallas
    • Dynegy Subsidiary · Houston
    • TXU Energy Subsidiary · Irving
    • 1 Ambit Energy Holdings, LLC Subsidiary · Texas, United States
    • 10 Dynegy Marketing and Trade, LLC Subsidiary · Delaware, United States
    • 11 Dynegy Midwest Generation, LLC Subsidiary · Delaware, United States
    • 12 Dynegy Resources Generation HoldCo, LLC Subsidiary · Delaware, United States
    • 13 Energy Harbor Holdings LLC Subsidiary · Delaware, United States
    • 14 Energy Harbor LLC Subsidiary · Delaware, United States
    • 15 Energy Harbor Nuclear Generation LLC Subsidiary · Delaware, United States
    • 16 EquiPower Resources Corp. Subsidiary · Delaware, United States
    • 17 Illinois Power Marketing Company, LLC Subsidiary · Delaware, United States
    • 18 Kincaid Generation, L.L.C. Subsidiary · Virginia, United States
    • 19 La Frontera Holdings, LLC Subsidiary · Delaware, United States
    • 2 Ambit Holdings, LLC Subsidiary · Texas, United States
    • 20 Luminant Commercial Asset Management LLC Subsidiary · Ohio, United States
    • 21 Luminant Energy Company LLC Subsidiary · Texas, United States
    • 22 Luminant Generation Company LLC Subsidiary · Texas, United States
    • 23 Luminant Power LLC Subsidiary · Delaware, United States
    • 24 Oak Grove Management Company LLC Subsidiary · Delaware, United States
    • 25 TXU Energy Retail Company LLC Subsidiary · Texas, United States
    • 26 Value Based Brands LLC Subsidiary · Texas, United States
    • 27 Vistra Asset Company LLC Subsidiary · Delaware, United States
    • 28 Vistra Intermediate Company LLC Subsidiary · Delaware, United States
    • 29 Vistra Operations Company LLC Subsidiary · Delaware, United States
    • and 24 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

How it started

History

The new 1600 MW Oak Grove which burns lignite coal from the Kosse Mine went online.

In February 2013, a Waco-based federal judge denied a motion filed by Luminant seeking dismissal of an air pollution lawsuit brought by the Sierra Club. The lawsuit involves excess levels of particulate matter at two Texas power plants owned by Luminant. The suit is based on information filed by Luminant with state environmental regulators which revealed thousands of violations of clean air standards.

In August 2013, Luminant was sued by the Environment Protection Agency over air-pollution standards at two Texas plants. This enforcement action followed two earlier EPA notices of violations at Luminant's Big Brown and Martin Lake plants. The suit alleges that Luminant made unauthorized changes to the two coal-fired plants.

Also in August the Dallas County Medical Society announced that it would petition the Texas Commission on Environmental Quality to crack down on Luminant and its three Texas power plants: Big Brown, Martin Creek Lake and Monticello. The doctor's group wants Luminant to lower emissions from the three plants. They say that doing so will lower cases of asthma, chronic lung disease, heart attacks and premature death contributed to by coal emissions.

On April 29, 2014, Energy Future Holdings, Luminant's parent company, filed for bankruptcy protection under Title 11 of the United States Bankruptcy Code.

From Wikipedia’s article on Luminant, shared under CC BY-SA 4.0.2

Products and brands

  • electricity generation

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

Owners

From Wikidata.1

Sources

The numbers on this page point here. Each one links to the record it came from.

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