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Constellation Energy is one of the largest conglomerates in North America. They operate over 35 power plants in 11 states and are one of the leading competitive suppliers of electricity and natural gas, as well as Baltimore Gas & Electric, their regulated utility in central Maryland.

In 2012 Constellation was purchased by Exelon, which has business activities in 47 different states. Exelon is the largest competitive power generator in the United States and is the second largest electricity and natural gas supplier in America.

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Most Recent Constellation Reviews  

Electric review
Good Seong sook Han from Allen TX

transfer to new supplier
eversource did not facilitate the transfer well. constellaion customer service worked to resolve this. fred from Ledyard CT

No complaints, very good customer service. Curt from Keller TX

4-5 Star Reviews: 430 (53%)