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

1244   Reviews

441   Replies

Response Rate:
35.45 %




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





1244 Reviews and 441 Replies for Constellation


Never Ever go to Constellation

(1.2 / 5)

  1)Hidden charges like additional charges in bill2)Live chat doesn't work3)Every month two bills4)Auto pay doesn't work and we end up in paying more times

Surya Maganti
August 3rd, 2019

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Terrible follow through on promises

(1.2 / 5)

  We had adjustments needed for two business accounts. It took 4 months and many calls to get it done, despite repeated promises to have it done immediately. As well, their online "energy manager" is never current with what the billing department has received, so you can't confirm account status effectively. I do not recommend using them.

Richard Maxwell
October 26th, 2018

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Con game

(1.2 / 5)

  Let 2 young women into my house who told me my utility companies would remain the same. This is B.S. I will cancel Constellation ASAP

Marilyn Small
October 6th, 2018

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No communication Gas turned off, difficulties restoring NO HOT WATER for 5 Days

(1.2 / 5)

  Sign up in line everything said, couldn't talk to a real person so I finally did sign up on line.
And that's where it stopped.
Moved in May 1, had hot water until middle of June.
Came home to no hot water.
Called constellation energy, talked with someone who
Wouldn't help me, said call back tomorrow and talk with customer service.
I didn't want to wait until Friday, so Thursday evening I signed up
again on line!!
What no one said was that then you have to get an appointment with Atlanta Gas Light to schedule a turn on.

So just HOW WAS I SUPPOSED to know this??

When I called Friday, they told me someone from constellation energy should have called me,

So that means that twice I signed up and twice they didn't call me.

When I called customer service early Friday morning they tell me that the first
available appointment for turn with Atlanta Gas Light is Tuesday.
So I have to call all weekend without hot water!!! Arghhhh!!
I then call Atlanta Gas light and tell them my experience and ask if there is any way to get service sooner.
They tell me that Constellation energy would have to call and tell them it was a marketing error on their part and
they would move me up.

I call back to Constellation energy and tell them this and they tell me there is nothing they can do, but offered me
25 dollars off!!! I told them I would rather have HOT WATER!!!

I called back again and asked to speak to another supervisor, told him the entire story and he said he would look into everything....called me back at 2 oclock Friday afternoon and said they would move my gas turn on to Monday.....

I said well Monday is better than Tuesday!!


No communication....Bottom line....DON"T SIGN UP ON LINE!! and make sure you have a turn on date!!!

Andrea...No HOT WATER IN GA
July 3rd, 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 17th, 2018
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Complicated billing practices

(1.2 / 5)

  Been customer for years with auto pay due to many military deployments. I received a disconnect notice today. After waiting on hold for 48 minutes, Michael, whom was not very cler told me the company moved and all the auto pay customers were kicked out the system. I asked to speak with a supervisor and was told they were not in the office. With all the fraud going on it is hard to believe a company of this size has moved and all auto pay customers are kicked out. I'm going to pay what I owe, I'm no longer going with auto pay and I'm looking or another provider. I guess long time customers don't matter. All I wanted was a clear legibly explanation and/ or speak with a supervisor. There was no apology for their mistake. I'm being taken for granted.

Allison H.
June 25th, 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 17th, 2018
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No More!!!

(1.2 / 5)

  Watch out if your contract runs out. I did and my bill doubled in price. I will not be jobbed by them anymore. This after 5 years, they are no help with it either.

Troy
May 30th, 2018

StarTex Power would like the opportunity to address your concerns. My name is Jeryce Clayton, Customer Experience Consultant at StarTex Power. Please email me at jclayton@startexpower.com. I look forward to assisting you.

Constellation Responds October 9th, 2012
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Broken Promises & Horrible CS from a former great company

(1.2 / 5)

  I have been with Startex for over 3 years and had nothing but praise until Constellation took over. When renewing the new offered rates charged 9.95 for low use. I called to cancel and was offered to stay at same rate I previously had. When my contract was not updated and my bill was late I spent more then 20 hours on phone trying to get my bill and to get Startex to honor agreed on bill. It is now 7 months later and my bills are still messed up and I cannot get a straight answer from Customer Service or a promised call back from a supervisor. Something is seriously wrong with this company as they don't have the ability to bill correctly and customer service does not have the ability to resolve or correct any issue. In the past 7 months my bills have twice skipped months and I still don't believe they are charging me the correct rate. The really sad part is a call to this companies customer service will not resolve any issue.

Rob
May 30th, 2018

We sincerely apologize for any inconvenience these issues may have caused. We would love to hear more about your experience and solve the issue. Give us a call at 1-866-917-8271

Constellation Responds September 12th, 2018
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Little to Recommend

(1.2 / 5)

  StarTex was once independent and they were great. Then they were bought by Constellation Energy and it's been a nightmare ever since. They screwed up almost everyone's bills at one point and were impossible to reach during the fiasco. Further, they sent out delinquent notices due to their screw up. I asked for and received a letter stating so, just to cover my rear. Their plans are difficult to understand, which is saying something given how hard all of them are. Additionally, when my contract was up, I called them to see what they had available. I asked for the best price based on my service. They quoted me a plan based on at least 2000 kWh per month. Well, my average is only 1037 and I only hit 2000 or more four times in the last 28 months. But, wait, there's more. This first plan included (at no extra charge, just a higher rate!) Air Conditioning "insurance." Be very careful of such insurance plans. At best, they're simply prepaid inspections and at a very high price. So, I asked for a cheaper rate and after about 15 more minutes, I finally got to what their cheapest plan is. Why should one have to go through such nonsense to find the best rate?So, given lousy customer service, rates that are on the high side, and statements that are a pain to retrieve, who needs StarTex/Constellation Power?

Texas Consumer
May 30th, 2018

We sincerely apologize for any inconvenience these issues may have caused. We would love to hear more about your experience and solve the issue. Give us a call at 1-866-917-8271

Constellation Responds September 12th, 2018
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Once Great - Not Anymore!

(1.2 / 5)

  Was a loyal customer for years, but recently their decline in customer service and care has made me reconsider. They were always so great about letting me know when my contract was about to expire (a huge perk in my opinion) and providing me different renewal plans with incentives based on length of service I could sign up for. This must be a thing of the past. I did not get a renewal notice this time (via email or postal mail) what I got was a big fat bill with outrageously charges once my contract had lapsed. I called customer services and they were anything but helpful - all they tried to do was push me into another contract. When I was on hold for nearly 10 minutes I had time to explore other much, much more reasonable options and told the customer service agent I'd be taking my business elsewhere. They couldn't care less. After over 5 years of customer loyalty, I feel that this company has gone downhill. I would not recommend them at all!

Troy
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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SO MAD AT THIS COMPANY

(1.2 / 5)

  I MOVED AND ITS BEEN MORE THAN A MONTH AND THEY TOLD ME I WOUKD RECIVE MY WELCOME PACKET IN 7-10 BUSINESS DAYS AND WITH ALL THE INFORMATION I NEED. I HAVE CALLED THEM 3 TIMES IS TILL HAVENT RECIVED NOTHING AND THEY SENT ME A EMAIL THAT MU BILL.IS READY TO VIEW ONLINE AND I CREATED AN ACCOUNT SND IT JUST SHOWS ERROR I AM SOO MAD IM ON THE PHONE WAITIBG FOR THEM TO ANDWER ME THE WAIT TIME IS RIDICULES OMG. I HAVE NEVER HAD SUCH A BAD EXPERIENCE LIKE THIS SMH!!!!

ruby
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 26th, 2018
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Left in the dark

(1.2 / 5)

  I was moving into a new home, scheduled my power to start, and a week into my new home, power off. Friday, 4:58PM. I call immediately, they tell me they have no record of my account or name, and there is nothing they can do until tomorrow, I'm given fake numbers to call back, fake operator names, and no power for 4 days. The kicker is, the only reason my power came on, is because I gave up on Startex and switched to stream, who had my power on in less than 5 minutes after account creation.

Oregon Doner
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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Lies and deception

(1 / 5)

  They dont tell you everything and youll end up having issues with billing I signed up and canceled right after not even a week apart and received two bills robbery I would definitely not recommend and will definitely pass along my reviews on media not to join!

Very disappointed
December 3rd, 2025

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Called to cancel registration with Constellation, was confirmed but now its a mystery,,,

(1 / 5)

  I signed up with Constellation on a state of Georgia site, shortly afterwards I called back as my current contract with GNG was not to expire till after the Constellation service start date. I simply called Constellation and asked may I start service after my contract date expired with GNG, they said no problem, we can start later, and they'd cancel the application. Now I owe GNG $150 and you have to jump thru hoops to get the $$ from Constellation.

Dissapointed before service even started!!
October 6th, 2025

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Switched to Constellation but Never heard back from them

(1 / 5)

  I switched over a month ago and never received any communication regarding the change over to them

DW
September 22nd, 2025

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Too expensive

(1 / 5)

  Too expensive am changing to a more affordable company

Expensive after trial
September 21st, 2025

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Very very poor customer service

(1 / 5)

  I recently had the unfortunate experience of dealing with Constellation, a gas company that falls far short of expectations in almost every category. From their unreliable service to poor customer support, there are several reasons why I would advise others to consider alternative gas providers.

First and foremost, the service provided by Constellation is notably inconsistent. Frequent outages and delays have been a common occurrence, leading to significant inconvenience. This inconsistency not only affects daily life but also raises concerns about the dependability of their supply, particularly in critical situations.

Moreover, the customer's experience is further undermined by unhelpful support staff. My attempts to resolve billing issues and service disruptions were met with long wait times and generic responses that did little to address the underlying problems. This lack of effective communication and support is frustrating and unacceptable from a service provider.

On top of the unreliable service and poor customer support, Constellation's pricing is often higher compared to other providers. Considering the quality of service they offer, the cost does not justify the experience. There are numerous other companies that provide more reliable service at competitive rates.

In conclusion, based on my experiences, I would strongly recommend exploring other options before considering Constellation as your gas provider. It's crucial to choose a company that values customer satisfaction and reliability, neither of which are evident with Constellation. Make sure to research and opt for a provider that better meets your needs.

Healthcare Provider
May 29th, 2025

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Unethical Company with Misleading Warranty Coverage Promises

(1 / 5)

  VERY UNETHICAL PRACTICES - Called to inquire about electric service as their home warranty perk with being a customer seemed like a good deal which would protect us from the possible high costs of AC and water heater repairs. Even though their price per KW is higher, my wife and I concluded it was worth the piece of mind of future unexpected repair expenses. When signing up, we asked a lot of questions regarding coverage and were told everything is covered unless specifically excluded which seemed like very few things which were mainly maintenance related. Fast forward, and our A/C breaks down 6 months into our contract. We were happy to know we wouldn't have to worry about this, especially with twin babies at home during the Texas summer months. We filed our claim and they sent one of their 3rd party companies to inspect our A/C which left us with an invoice of 3500 and said to call Constellation regarding repair coverage. Upon calling, Constellation's warranty department which goes by Home Protect, proceeds to tell us our part needed is not covered and falls under items excluded in the contract. When I ask to please forward contract reflecting this, they tell us they cannot because it was in the welcome package we would have received through regular mail. I eventually reach a service rep who is able to forward us the original welcome package that was sent to us with contract included. Upon review, we notice it Does Not mention our part as one of those excluded from coverage. We call Constellation's warranty claims department back and get transferred to same manager who we let know that we were able to get the contract and can now see it does not show our part as one of the excluded ones on the list. She then changes her approach to tell us in a very condescending manner that actually if it's not on the list of covered parts, then it's assumed it will not be covered.

John
May 17th, 2025

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Bad experience , BEWARE

(1 / 5)

  Beware of shady practices. I was told no early termination fees when the guy came knocking at my door. All he was pushing was a lower rate, he was also very pushy. I would not recommend using this company

Kyndra
January 2nd, 2025

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Scam

(1 / 5)

  Couldnt set me up online and needed me to call a representative to give information. Then proceed to try to sell many insurance products to me. I said it was a scam to make me call in and talk to him and he was annoyed because he IS a sales representative! It was all a big hassle and I didnt feel comfortable with them. Also received many solicitations after signing up.

Scammy
December 8th, 2024

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Zero Reliability

(1 / 5)

  This is a horrid company and their is no level of customer service. It is based on sales and that is their bottom line. It is structure to syphon from its users and to get people into a rock and a hard place. DO NOT go with this service provider!

M W
October 24th, 2024

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