Delsi
Muy buen servicio y excelente atencion…
Muy buen servicio y excelente atencion al cliente

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Constellation (constellation.com) has 362 customer reviews on Five Star Index, with an average rating of 4.2 out of 5.
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Delsi
Muy buen servicio y excelente atencion al cliente
Bob R.
the offerings I choose didn't come up. I choose .15KW and winded up with other plan. Tried to cancel and was told not able to. I looking at cancellation and paying the fine
Response from ConstellationJul 23, 2025
Hi Bob, We're sorry to hear that the plan you wanted did not appear for you. Our rates and plans do change based on a number of factors including demand, weather and more. If you signed up for a plan, you do have 3 days to cancel your contract in Texas and up to 90 days in other states. If it is beyond that time period, you may be required to pay an early termination fee based on the state you live in. We have sent you an email requesting more information. If you could please respond to that, we will have our customer care managers look into this for you. Thank you.
Victor
Your service is excellent
LuigiBalestra
Excelente Service
DARLENE F.
I love Constellation Energy. The customer service reps are very friendly and very helpful. They helped me when I needed it most. I really appreciate each and every one of them who work there. Thank you for all you do.
Andres
Awesome job thank you’ll
Robert
Good communications!
Kathryn B.
Bills too high
Response from ConstellationJul 23, 2025
Hi Kathryn, We are sorry to hear your bills have been higher than expected. We have sent you an email requesting additional information. If you could please respond to that, our customer care team can look into it and see if there is a different plan that will work better for you based on your energy usage and budget. We appreciate your feedback. Thank you.