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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.

Our Grading of Constellation

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Constellation Plan Summary

Constellation does not currently have any plans available on Texas Electricity Ratings.

We recommend plans from TXU Energy and Discount Power instead.

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Customer Reviews of Constellation

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Most Recent Constellation Reviews  

Great UTILITY...
PAINLESS. Rick Savidge from Wellfleet MA

New to Constellation and very Happy
I only signed up with Constellation about 2 months ago. So far so good. I was attracted by the price, terms of the agreement and other reviews. ST from Highland Park TX

Wonderful Jun from Suwanee GA

4-5 Star Reviews: 488 (53%)