Luminant is a subsidiary of Vistra Energy, an American energy company based in Irving, Texas. Luminant itself was previously known as TXU Corp before it was acquired by Energy Future Holdings in 2007 and later merged with Vistra Energy in 2018. Luminant's headquarters is located in Dallas, Texas.

The company is primarily involved in the generation and wholesale marketing of electricity through its fleet of power plants, which includes natural gas, coal, and nuclear power plants. Luminant also has a significant focus on renewable energy, with investments in wind and solar power projects. On a global scale, Luminant operates primarily in the United States, where it has a strong presence in Texas.

The company's notable subsidiaries include Luminant Mining Company LLC, which is responsible for lignite mining operations, and Luminant Generation Company LLC, which operates the power plants. Luminant has also formed partnerships and joint ventures with other companies in the energy sector. In terms of market position, Luminant is one of the largest power generators in Texas and the United States.

It holds a significant share of the wholesale electricity market and provides power to millions of customers, including residential, commercial, and industrial consumers. Luminant has achieved several significant milestones and accomplishments over the years. In recent years, the company has made efforts to transition its power generation portfolio towards cleaner energy sources, reflecting the industry-wide shift towards sustainability.

This includes retiring older coal-fired power plants and investing in renewable energy projects. As of now, Luminant continues to operate as a leading power generation company, serving the energy needs of customers in Texas and beyond. The company is embracing new technologies and renewable energy sources to adapt to changing market demands and regulations.

Luminant remains committed to providing reliable and affordable electricity while reducing its environmental impact