Luminant is one of the largest purchasers of wind-generated electricity in the United States. It offers clean energy solutions and invests in renewable resources. The company specializes in power generation and wholesale marketing. It conducts a variety of construction, mining and development operations. The company generates more than 16,100 megawatts of power in Texas. Luminant, formerly known as TXU Corporation, offers natural gas for customers in the industrial, chemical, health care, hospitality, manufacturing and commercial markets throughout northern Texas. The company also provides greenhouse gas renewable offsets through its business unit, Luminant Energy. Luminant is a subsidiary of Energy Future Holdings Corporation, which is an energy holding company.