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Constellation Reviews 54

TrustScore 4 out of 5

4.1

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Rated 1 out of 5 stars
Verified

Once i signed up, I never received a welcome package or account number. This happened for 4 different homes that I signed up for service. I had to use the online chat feature to get the account numb... See more

Company replied

Rated 5 out of 5 stars
Invited

The change in your billing process, made it difficult to determine why my account wouldn’t work. When the young man that I called took over the process, he explained everything to me and the new URL t... See more

Company replied

Rated 5 out of 5 stars
Invited

Everything I call or have any concerns are any kind of doubts Everyone's always willing to help me out to explain things to go above and beyond to make sure that I get the best quality service you al... See more

Rated 5 out of 5 stars
Invited

For so many years, since I transferred my service to Constellation Energy, I like their energy rate. They have the cheapest rate compared to my previous providers. Their customer care service is very... See more

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Company details

  1. #8 of 8 best companies in Energy Supplier
  2. #6 of 6 best companies in Electric Utility Company
  3. #6 of 8 best companies in Green Energy Supplier
  4. #4 of 4 best companies in Housing Utility Company
  5. #1 of 1 best companies in Nuclear Power Company

About Constellation

Written by the company

Serving millions of homes across the U.S.

Written by the company

Constellation Energy is one of America’s most trusted and experienced energy providers, serving millions of homes across the U.S. As a Fortune 200 company (Nasdaq: CEG) and the nation’s largest producer of clean, carbon-free energy, we’re proud to help families power their homes more reliably and sustainably—with a wide range of electricity and natural gas plans designed for flexibility, value, and peace of mind.
We offer fixed-rate plans to help you avoid seasonal rate hikes, renewable energy options to reduce your carbon footprint, and easy-to-use tools that let you track your usage and savings. Whether you're new to energy choice or switching providers, Constellation makes the process simple and transparent.
We’re here to make energy choice simple, rewarding, and built around you. If you’re a current or past customer, we’d love to hear about your experience. Share your review here on Trustpilot and help others make informed energy decisions.
Learn more at www.constellation.com

Constellation

Why Sign Up with Us

Quick and easy signup process

With easy online enrollment, getting started with Constellation takes just a few minutes.

Get rewarded every month

Customers can take advantage of Constellation Rewards, giving you access to exclusive perks, discounts, and savings just for being a customer.

We make switching easier

In select markets, we’ll even cover your cancellation fee when you make the switch—making it easier and more affordable to choose Constellation with confidence.


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4.1

Great

TrustScore 4 out of 5

54 reviews

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Replied to 100% of negative reviews

Typically replies within 1 week


Rated 1 out of 5 stars
Verified

No information after signing up

Once i signed up, I never received a welcome package or account number. This happened for 4 different homes that I signed up for service. I had to use the online chat feature to get the account numbers. Also, had a terrible experience with their "identity verification" process.

October 2, 2025
Constellation logo

Reply from Constellation

Hi Margaret - We are very sorry to hear about your experience. After speaking with our Customer Care team, they did confirm that their records show that a welcome package was mailed to you by postal mail and a confirmation email was sent to you right after you signed up. We have sent you an email associated with this review. If you could please respond to that, we will have our customer care team look into this further to make sure we have the correct information on file and share your feedback with them. Thank you.

Rated 1 out of 5 stars
Verified

Have yet to receive account information…

Have yet to receive account information since activation of service

August 24, 2025
Constellation logo

Reply from Constellation

Hi Anita, We are sorry to hear you have not received your welcome packet yet. You should have received it when your service started at your address. If it has not started yet, you will receive it when the transfer or switch is complete. You can check your status at: https://www.constellation.com/solutions/for-your-home/residential-signup/enrollment-tracker.html. If your enrollment is complete and service has started and you still have not received your welcome packet, please respond to the email we sent you with the requested additional information and our customer care team will reach out to you. Thank you for your feedback.

Rated 1 out of 5 stars
Verified

I’ve had no communication or updates…

I’ve had no communication or updates form your company after signing up. I continue to receive bills from my prior provider at a significantly higher price now that my contact has expired and I still don’t know if you actually set up my account or just lost my order.

August 25, 2025
Constellation logo

Reply from Constellation

Hi Roman,

We're very sorry to hear about your recent experience and that you have not heard anything from Constellation after signing up with us.

Based on where you live, it may take up to 2 billing cycles for your request to be processed and approved by your local utility company.

We sent you an email to the address associated with your review requesting additional contact information. If you can please respond to that, we can have our customer care team look into this for you and have a member reach out to you.

Thank you,
Constellation

Rated 5 out of 5 stars
Invited

Happy Camper...

For so many years, since I transferred my service to Constellation Energy, I like their energy rate. They have the cheapest rate compared to my previous providers. Their customer care service is very helpful and easy to talk to. They will try their best to solve my concerns or issues.

July 16, 2025
Rated 2 out of 5 stars
Invited

Customer Service needs help

I subscribed to a 3 month plan to try your company out. I was disappointed. First, you said my plan date would expire after 2 months instead of 3. I called customer service. The person I spoke to wasn't very intelligent. He couldn't figure out when the end of 3 months would be! Finally, we got that straightened out. Later, I had to call customer service again because the ending date of my contract went back to the 2 month date. Again, customer service had a hard time with math figuring out when 3 months would end. FINALLY, it was straightened out. Other than customer service, the actual electric service and billing were fine;

June 9, 2025
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Reply from Constellation

Hi Patty, We are very sorry to hear about your experience. We have sent you an email requesting some additional information. If you can please respond to that, we can forward it onto our Customer Care Managers to look into your issue and have someone reach out. We appreciate your feedback. Thank you.

Rated 5 out of 5 stars
Invited

I have been with constellation for 15…

I have been with constellation for 15 years. I stay with them because they don’t go up all the time like electric companies do. They’re pretty fair on pricing per kilowatt and when you call to talk to someone at constellation, they have not been rude. They have been kind and help with your problem if you have one or question.

August 4, 2025
Rated 5 out of 5 stars
Invited

My review

I have been with Constellation for sometime now. Customer Service is really good and their rates are very competitive.

August 4, 2025
Rated 5 out of 5 stars
Invited

A very happy customer

A very happy customer! I’ve been with Constellation now for many years. I love that they keep me informed of how many kilowatts I have used on a weekly basis. It gives me an idea of how much energy I have used and informed on those days when they are higher. I keep tabs on my account. I appreciate knowing and anticipating what my bill will be each month. By the same manner, I welcome those tips on how to conserve energy and lower my bill.

August 3, 2025
Rated 5 out of 5 stars
Invited

Service is great

Service is great, bill arrives in a timely way. There are numerous perks with the service, such as how your ac is functioning.

August 3, 2025
Rated 5 out of 5 stars
Invited

Satisfied customer Maggie Young

This is the best electricity company ever. I'm on a fixed income and I try to keep my usage low. Thanks for letting me know about the working of the air conditioner. That really help, if something is not working, Id be able to have it fixed before I began to lose money I can't afford.

July 22, 2025
Rated 4 out of 5 stars
Invited

All great except for increase in costs…

All great except for increase in costs this year.

July 29, 2025
Constellation logo

Reply from Constellation

We appreciate your feedback. You can learn more about what goes into determining energy pricing at this article: https://www.constellation.com/energy-101/energy-choice/how-the-market-affects-pricing.html. We will share your comment with our pricing team. We appreciate you choosing Constellation.

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