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


New customer?

(1.8 / 5)

  Received a $6.03 invoice for my first three days of my initial month of service beginning 04/01/18, indicating zero therms used??? This bill was balance forwarded to a $41.54 for the remainder of the April cycle? Really, this is how we keep new customers?
Contacted C/S and was unable to resolve billing issue. Was transferred to billing which I let ring for at least five minutes prior to hanging up. Situation status - unresolved.

Terry S
May 17th, 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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My Order Never Went Through

(1.8 / 5)

  I received a confirmation number for Constellation Energy. I thought everything was complete, never received any follow up. I received my most recent electric bill and it was astronomical. Turns out, the order never went through and North American Power jacked my rate up to .16 per kw/h. First, this website is terrible. Second, North American Power is getting away with highway robbery. I am on the hook for $250 extra this past month, and again this month until the new plan kicks in. Remember when they said deregulation was going to be so great for the consumer? It's only great for the energy companies.

Shane
April 18th, 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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bad experience - took 5 calls to enroll

(1.6 / 5)

  As a former Constellation customer with 800+ credit score, I was expecting the switch back to Constellation to take just 5-10 min. instead, it took 10 days, multiple calls and emails. I walked away from it, but then was contacted by someone from corporate team who actually got everything done in 2 min.

VS
October 6th, 2025

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False Contracts

(1.6 / 5)

  I signed up for a 3 month term do to a short term lease and I was informed that a 3 month contract isn't a 3 month contract it is a 3 month billing cycle term. They had no issues in trying to get me to renew and pushed on that heavily. I am not sure when a 3 month contract turned into a 3 billing cycle term, so be sure to look out for that. Do not recommend since whatever you sign doesn't mean what you actually get.

Zach
February 7th, 2025

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Yet to receive a bill

(1.6 / 5)

  Yet to receive a bill. Had trouble switching as I had two residences on my Eversource bill and that seemed to be an issue yr people could not solve.

David Whitty
September 16th, 2024

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sucks

(1.6 / 5)

  MY BILL DOUBLED

NORM
January 15th, 2024

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Deceiving information on dashboard web page

(1.6 / 5)

  They have deceiving information on the dashboard main webpage of customer showing wrong renew dates, obviously trying to confused people for renew contract, if you stay with them is ok but if you change company they will tell you about the contract you sign years ago, told them why they have the wrong dates on the webpage they should correct that, no answer was giving to me other that we told you when you renew your contract the date it expires. but they cover them self with the contract and with month to month reallly why then you still post renew dates wrongly on the same webpage?

deceiving renew date on webpage
June 30th, 2023

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Repeated same information eight times

(1.6 / 5)

  I spoke with a rep who made me repeat and repeat. I was on the phone over an hour. She finally said it was complete. The next day another rep called and repeated the order questions and said it was incomplete from before. I didnt know if service would work or not.

Ed
June 15th, 2023

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Cant get it right

(1.6 / 5)

  I tried to change my service to constellation and received rejections for two weeks because they could not find the account with AGL. At one point, I gave them so much information there was not possible way they couldnt set up the account. The following day, their agents called and said they could not set up the account. This company is full of inept fools if they cannot do something so simple as set up an account.
The real kicker is that I received SIX (6) phone calls in 2 minutes from Constellation telling me the account couldnt be setup.

Joe
May 31st, 2023

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Terrible!

(1.6 / 5)

  They never put my order through to Atlanta Gas Light resulting in my gas being shut off in the middle of winter. Even though their failure caused my gas to be switched off there was no urgency in getting my gas back on, so I had to wait days for it to be turned back on. Run away as fast as you can!

Jacob
May 29th, 2023

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Run fast and far first bill good than jacked up

(1.6 / 5)

  I signed on with this company saying they were the best rate in my area at the time what a crock my first bill was decent only $99 then it jumped to $170 then 249 then 327 saying I was using 1492 KW in 1900 KW I finally paid the cancellation fee and switch companies amazingly the highest my bill has been in the last 2 months is $143 I haven't used more than $1,073 KW and I'm doing nothing different this company is a rip off their surcharges at another $90 on to your bill regardless of what they say run as far as you can when I tried to call customer service they tried to tell me everybody was that way so not true I am now with pulse power and can't be happier I waste it 5 months praying too much for energy with this company and then a cancellation fee that I should not have been charged being is there so corrupt

Ripoff
April 7th, 2023

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Wish I never used them!

(1.6 / 5)

  Years ago, I received a promo rate on my electric which was better than Potomac Edison. A few months ago when my small house (usually never more than $350/month in worst of winter) was getting bills over $400 and the over $500. When I called to ask why, actually was told would receuve a call back within 5 days- when I got upset, their chat was suggested. I was told my kWh was now fixed 14 cents year round. I about freaked- Potomac Edison is not fixed but 6-9 cents. I could cancel quick enough! Was told they guarantee fixed rate not best. I feel like I was screwed out of money for months or years. They dont show rate on bill so they hide what they are doing. Beware when promo ends or better yet - dont even deal with them! I want to tell the world how they do business to save other victims!

FrederickTwinMom
February 26th, 2023

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Customer Service

(1.6 / 5)

  I have had bge home employees service me for thirty yrs . The boisterous guy ,Dave, acted as if he did t feel like working . He co.ai Ed from the time he saw it was a crawl space. He said he didn't want to get dirty he had to get overalls. He came to my door again. .no o really on. He s cared me, when he said it was dangerous and he had the power to refuse service. He said there's stuff. And he's not climbing over . There were only two pool hoses . The rest was plastic barrier .I finally said what's dangerous. And what stuff. He took pics .to show his boss .I did not Remember I had not used BGE last time. For my water heater .but I have still a contract on my furnace. Why did Constellation guy come . I have never been talked to by any BGE employee this way. Dave acted like he did not want to do a job and made it sound worse than it is .Dave told me he can't maneuver and he has a bum knee. My question. Why would you send some guy who is not capable of doing his job.
I called back and rescheduled the lady was very nice . Dave who's been there ,he says 25 years. He needs a course in Customer service .He mumbled so I could hear . Even my 5'10 grandson went in there to take pics .
That same day ,Sat. He called back telling me that he refused per his supervisor ,they cx the ticket and Constellation WOULD NOT SEVICE ME . He was rude and boisterous. What happened to theBGE HOME . Their employees never spoke to me ever in that tone or way. My speculation he was on a power trip. You don't care about people and especially an older person. I guess you are a union and nothing will be done. I know on my part I will not recommend Constellation due to poor customer service .

Nancy Montoya
October 25th, 2022

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Poor Information

(1.6 / 5)

  Waited for 12 hours to receive service and still waiting! Given misleading information as to when service would be provided.

Unhappy
August 9th, 2022

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Bad sign up day

(1.6 / 5)

  Signed up on line,received a phone call welcoming me and went over my info.was told it would take a while to take affect.receieved at least 4 follow up calls that billing no.from my current provider was not correct.I gave them the info.every time,and ended up getting additional calls about the same thing,so I told them how many times that same account number was given without success so just cancel my sign up.this went on for weeks that they would call me with the same problem.

Sign up problem
July 8th, 2022

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Constellation was AWFUL

(1.6 / 5)

  The title says it all.

Jeanne Heeley
February 9th, 2022

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They are incompetent and cannot establish an account for 2 months!

(1.6 / 5)

  I tried to transfer my account on December 12, 2021. The account was supposed to be established on January 1st, 2022. I paid them a security deposit of 150 dollars since they said they couldn't verify my credit for some reason. I own a house, so my credit score isn't an issue. Regardless that's not the issue.

January comes but there's no notification about whether my account was established. I call them and they can't locate my account. I had to speak to 3 different people until someone was able to locate my account through the email address to which they sent the confirmation number of the 150 dollar Security deposit payment. They told me it'll be established on the first of February and that they'll give me the credit on the extra I'll be charged on my current plan due to their mistakes.

On January 12, I receive an email saying my Security deposit payment was refunded. I call them again to see what's going on. Again, they cannot find my account. I have to reenroll for February. The representative tells me that since the account was not established and they cannot find it, I will have to reenroll from scratch. I would have been ok with it, but when I asked will I be credited the difference in the high rate I am paying with my current company, she told me she cannot promise that. Then, I asked to speak to a supervisor. He was able to locate all of my requests to enroll, all the way from November 2021 when I tried to enroll on their website. He told me they have different systems to process things and the representative did not check those hence, they couldnt locate my account. Then, I was transferred to another specialist and she tells me that nothing is wrong with the account and that the reason for the refund was that my credit was verified and they did not need that payment. Finally, she did promise to upheld the promise to credit my account for the extra charge I will incur due to their mistakes.

From this frustrating experience, I'll tell Constellations to provide better tools and training to your regular representatives and communicate better with your customers with emails whenever a change occurs to their accounts.

For any new customer, just make sure you have the enrollment ID and speak directly to a supervisor as the regular representatives either don't have the necessary access to help you and or they lack the training to help you adequately.

MD Haque
January 14th, 2022

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Horrible Customer Service

(1.6 / 5)

  Service not turned on as requested and agreed when I signed up for service so power was shut off when contractors trying to work. Customer service phone number required 20 minutes before I reached someone. Customer service claimed it was Oncor's fault. Oncor confirmed Constellation never submitted request. After 2 more hours, learned Constellation is a manual process and they didn't submit request. My contractors and I lost 4 hours of our day troubleshooting ourselves and waiting for power.

Mike In Dallas
June 1st, 2021

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When is my contract up

(1.6 / 5)

  Extra charges in my bill

Ms. Hulsey
March 29th, 2021

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Constellation energy bad to deal with

(1.6 / 5)

  Constellation has been difficult to get hold of, always at least one hour on hold. When i cancelled service to move to better provider i was immediately put on a variable rate plan without my knowledge that more than tripled my bill. When i contested this i was told that there was nothing they could do about it. Do not use this company!!!

David S
September 22nd, 2020

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