Constellation - Company Information




About Constellation

Constellation Logo

PURA#: 06-07-11

Constellation is the US's largest producer of carbon-free energy and a leader of retail supply of power, natural gas and home services for residences across the nation. Headquartered in Baltimore, their generation fleet produces enough energy to power 15 million homes and is helping to accelerate the nation's shift to clean energy with more than 32,400 megawatts of capacity and annual output that is 90 percent carbon-free. Constellation serves approximately 2 million residential, public sector and business customers, including three-fourths of the Fortune 100.



CT Energy Ratings Score:


( 3.4 / 5 )
Our rating criteria
All Providers Ranked From High To Low


Constellation Customer Engagement

1257   Reviews

441   Replies

Response Rate:
35.08 %




This graph ranks Price, Plans, Promotion, Order Experience, Customer Service, Billing, Account Management, Likelihood to recommend and Overall score of Constellation





1257 Reviews and 441 Replies for Constellation


Irritated by renewal by phone just to be "sold" things

(4 / 5)

“  When I bought my home in 2006, I was one of their first customers ever. I've stayed with them since then and always automatically renewed via online. I have automated pay and so never have I had to call anyone to renew my service each year (or 24 months). Suddenly out of nowhere I am told that I have to call to get the lowest rate. I called, which was irritating on its own since this has never happened in 10 years. I was given a lower rate, which was good and felt like the company was just trying to find out who were their most loyal customers. Then the renewal call turned into a sales push to get me to change my A/C guy! WHAT? I finally had to tell the rep to just stop it. I was not changing my A/C guy! Then, I had to answer all these approval questions. So they tried to sell me before they registered me. Not good. Then I had to be told about a referral code and all these benefits to getting people to switch to them. THEN, the rep wanted me have the referrals call him directly. At that time, my dog began barking because an AT&T guy came to my door so I was able to get off the phone. Entire time 15 minutes! I don't appreciate all that. I felt I was being baited, pressured, switched and victim of a sales call. ”

— LMB
May 30th, 2018

We are so sorry to hear about your negative experience. Give us a call at 1-866-917-8271 so we can be sure to solve this issue.

Constellation Responds September 12th, 2018
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Constellation Energy Group Honest Review

(4 / 5)

“  I've been with constellation for a few years. I noticed the rate was always lower than my utility's. My bill doesn't change much either unless I'm using more electric than usual. ”

— Jhon Cooper
April 3rd, 2017

Thank you for taking the time to give us feedback. It is through feedback such as yours that we are able to provide our customers with the best experience possible. Dont hesitate to reach out to us with any questions you may have.

Constellation Responds September 26th, 2018
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Better Than Expected

(4 / 5)

“  Constellation is a pretty good company to partner with for your gas services. Their customer service is excellent! You are never on hold long and they help you promptly. The only recommendation I would suggestion is providing a direct number for people in different cities. Their fees are decent if you sign up to be with them for an extended time. Also, whenever it is time to renew, they make the process seamless that way it is easier for a customer's busy life. I would definitely recommend Constellation for your gas services!! ”

— R. Milam
February 3rd, 2017

We are so happy to hear that you had a great experience with Constellation, its been our pleasure!

Constellation Responds September 26th, 2018
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Customer Service could be better

(4 / 5)

“  I signed up with them through a salesman who came by my house as I had had enough of the previous provider. Although he was quite thorough in explaining the services and charges, he did forget to mention some terms and conditions which weren't mentioned on the contract. It would have been better if they were transparent about their policies regarding cancellation and renewal. However, I'm satisfied with their pricing and have no complains about it. ”

— Iain McCormick
October 21st, 2016

Thank you for taking the time to give us feedback. It is through feedback such as yours that we are able to provide our customers with the best experience possible. Dont hesitate to reach out to us with any questions you may have.

Constellation Responds September 26th, 2018
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Good Rates, Easy to Order

(4 / 5)

“  After a cold snap and my natural gas rates going sky high, I opted to switch to Constellation Energy. So far, it has been good, with no more unexpectedly high bills. And switching companies was actually easier than I expected as well. So far, so good! ”

— Jason S
August 22nd, 2016

We are so happy to hear that you had a great experience with Constellation, its been our pleasure!

Constellation Responds September 26th, 2018
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Happy with Startex

(3.9 / 5)

“  Pro:
Good company never had a problem with them and no hidden fees or surprises.
CON:
Could be a bit cheaper ”

— Houtan
May 30th, 2018

Houtan, I have located your account and have sent you an email in regards to your feedback. Thank you for your continued patronage to StarTex Power. We value you as a customer! Jennifer Lewis, Office of the President

Constellation Responds May 8th, 2012
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Early Terminiation Fee Asst Prog - is a sham!

(3.8 / 5)

“  Fine for the their energy prices if you do a good job picking your plan. However, the "early termination fee assistance" program that is supposed to refund you if you experience a termination fee to switch plans is a joke. It seems to be a sham company. Very disappointing and a pain in the ass. Don't switch to them thinking you'll ever see the refund/reimbursement for that fee!

I assume I will be switching to another energy provider as my plan ends in 2 years since no provider seems to give you an actual competitive rate to remain with them. ”

— Amy Webster
August 2nd, 2026

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No Additional Issues

(3.8 / 5)

“  Nothing additional to report ”

— GAPs
March 16th, 2025

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bad experience

(3.8 / 5)

“  constellation was told by Nicor that I couldn't switch even though I was within the 100 day time stamp according to Illinois law. Nicor was of no help. they just kept telling me no. Way to many people getting involved in this to get it right. I'm stuck with Nicor for a year according to them before I can switch. ”

— Bob Eckstrom
September 22nd, 2021

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Confusing but still good

(3.8 / 5)

“  I signed up on Dec. 23 or something like that. I was told my new service would start the next month. It didnt start until Feb. my bill with my former company was really high but Ive gotten it covered and my new bill will be smaller. I appreciate the eventual help I got. Like I said it was hard and confusing but still good. Thank you everyone that helped me! ”

— Johnnie Markham
February 23rd, 2021

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Service

(3.8 / 5)

“  N/A ”

— Service
November 30th, 2020

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New customer

(3.8 / 5)

“  No comment at this time, new customer less than 1 month ”

— Bob
May 28th, 2020

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Constellation Energy

(3.8 / 5)

“  Billing is easy to read and understand, when it came time to renew I called and the customer service line was answered quickly, they spent time answering all of my questions to help me decide on the best plan for my needs. Pricing seems comparable to my last electric company before they were bought by Direct Energy who I do not recommend. ”

— Karin Slough
April 2nd, 2020

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Phone operators need better speaking skills

(3.8 / 5)

“  The hardest thing is understanding the phone operators---their accents were so heavy that I had to constantly ask them to repeat what they had said. ”

— Marsha
October 15th, 2019

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Too many charges

(3.8 / 5)

“  I came to your company because of a friends recommendation, I wish I looked around first. This is our first time using gas and I guess I didnt realize how many
charges their were.
I used $7.50 last month and by Bill was almost 60 (I understand set up fee were in there) But this month I only used $3.59 of gas and my bill was 41.60, Im sorry but that just crazy!!!
I understand taxes and even the supplier charge but 27.71 for Atlanta Gas Light Change, what is that all about??
Just disappointed, not even in the cold season yet, cant imagine what that Bill is going to be!!!! ”

— ReBecca
September 19th, 2019

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gas connection

(3.8 / 5)

“  my experience was good ”

— Rose George
July 17th, 2019

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Rocky start

(3.8 / 5)

“  Although I provided the agent with the correct address and meter number and told them the address they were showing my meter at was incorrect they did not believe me. Subsequently my service was delayed and I was in a house without heat for days. Repeated calls yielded no results. They kept telling me my meter was located at 249 North Pinecrest Dr which is 3 1/2 miles away. They finally told me to call Atlanta Gas light myself to get it corrected. I did. They didnt find anything but a pine forest at the incorrect address.

Once I opened a complaint with the Public Seevice commission they decided perhaps they should actually come to the correct address I had given them which is 249 Pinecrest Road to turn in the gas. They were stunned.

The number or calls and pleas for help I made were totally ignored until I notified the PSC.

Agents should be trained to listen to customers and not argue with them. And to take ownership and resolve service record issues with Atlanta Gas Lught themselves. ”

— Carra
March 26th, 2019

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The old Bait and Switch

(3.8 / 5)

“  I experienced a bait and switch offer. Instead of a $200.00 reward originally promised, I had to settle for $100.00 credit as opposed to a home security system which I have no need for. ”

— Darryl Omari
November 21st, 2018

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Great rate but really hard to get ahold of customer service

(3.8 / 5)

“  After signing up on-line I received an email saying "something went wrong, call us". After about 4 attempts to get through over several days I finally got a helpful person who basically said "that's strange, everything looks OK and the order is being filled". How will I know if it goes through? "A bill will be sent to your address." A month and a half later I got a bill (and two closing bills for the same final amount from the old company - but that's another story). I would have appreciated a welcome letter showing what I had signed up for and when it would all start.

I called 2 more times to check on the progress before the bill arrived and have no problem with the customer service people once connected. They were helpful and courteous (although it seemed they were struggling a bit to get information on their end - maybe their computer system has issues). BUT, each time it took multiple attempts and long waiting periods before I finally got through.

I've never before had this much trouble getting through to a gas company's customer service department.
I do hope the bills are accurate each month but I'm a bit nervous about it. We'll see how it goes.

During the process I was quite ready to give up on the good rate just for some closure on what was happening. I had a bet with a friend that it wouldn't go thru after all and would have to look for good rates all over again. I gladly lost that one because trying to get good information on the true cost of gas is like the fear I felt on the first day of advanced Trig. I dropped that. ”

— Constellation gives consternation
August 11th, 2018

We are so sorry to hear about your negative experience. Give us a call at 1-866-917-8271 so we can be sure to solve this issue.

Constellation Responds September 26th, 2018
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Transferred from another company because their customer service rep was rude!

(3.8 / 5)

“  Sign-up was a little more difficult than I expected. My account information did not automatically transfer. Apparently, the old account numbers were not compatible and the representative had to look it up and process the new account manually. ”

— Stan48
June 27th, 2018

Thank you for taking the time to give us feedback. It is through feedback such as yours that we are able to provide our customers with the best experience possible. Dont hesitate to reach out to us with any questions you may have.

Constellation Responds September 17th, 2018
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