Duquesne Light Company

Xcel Energy manages utilities serving 3.8 million electric customers and 2.2 million natural gas customers in eight states. Its utilities are Northern States Power, which serves customers in Minnesota, North Dakota, South Dakota, Wisconsin, and Michigan; Public Service Company of Colorado; and Southwestern Public Service Company, which serves customers in Texas and New Mexico. It is one of the largest renewable energy suppliers in the US with more than half of its electricity sales coming from carbon-free energy.

An energy Company engaged in the transmission and distribution of gas and electricity to three quarters of New Jersey's population.

CenterPoint Energy owns a portfolio of businesses. Its regulated electric utilities provide transmission and distribution services to more than 2.5 million customers in the Houston area, southern Indiana, and west central Ohio. The company has natural gas distribution systems serving approximately 4 million customers.