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

1226   Reviews

441   Replies

Response Rate:
35.97 %




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





1226 Reviews and 441 Replies for Constellation


Crazy extra fees

(1.8 / 5)

  Even if you barely use the gas the fees will bleed you dry as well

Go broke fro gas
March 15th, 2025

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Forever to switch

(1.8 / 5)

  We signed up in December, February now and Eversource is still our supplier!

Ldg
February 16th, 2023

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This company is

(1.8 / 5)

  Our contract expired. My monthly bill jumped from $217 to $537! I missed the email notice about renewing since the send 2-3 emails they send each week go to my spam folder. I would not recommend doing business with these people.

former customer
September 30th, 2022

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They Failed to Provide Service

(1.8 / 5)

  I confirmed my contract start date in early July to match up with the end of my previous contract. I received multiple notices confirming the contract. After a month without a bill, I called, was told there was a database error and that it was fixed. A month later nothing had changed. I called in to be told my account was not active despite never being given notice of a delay or cancellation in my order. The service had defaulted to that of the apartment complex with disconnection fees because Constellation failed to provide service as agreed. I never received an explanation as to how this happen and once I was actually told they weren't providing service, I closed out the account to seek other service.

The price, if they actually provided service, was decent.

Stu
September 7th, 2021

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website does not display what mail offer displays

(1.8 / 5)

  Have tried to contact rep to renew with no response. should be able to do this online but website does not display what mail offer displays

friend of no friends
September 6th, 2021

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Run....don't just walk away from Constellation.

(1.8 / 5)

  Was sold & promised water heater protection until needed it, then lo and behold, told that Constellation doesn't have a service provider to honor the commitment. With repeated attempts to get to the bottom of why sell something you can't provide, I was told that some of the areas they promise it to they don't have providers but it doesn't stop them from promising or moving them forward to locate and maintain a service provider in their areas where water heater protection is promised. Georgia Gas Savings rep recommended that Constellation was the best deal, partly the cost of terms and part through the water heater protection. I've been thoroughly disappointed with how everything has gone after the order was place & the service turned on. Constellation, why promise what you know you can't deliver? This aggravates customers to no end and gives fertile opportunity for disgruntled customers like me to air grievances. Shame on you!

Bob Faver
July 24th, 2021

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Phone call

(1.8 / 5)

  Everytime I called they don't answer the phone

William simmons
May 10th, 2021

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nightmare

(1.8 / 5)

  Signing up for service was easy, and was promised to turn gas on on specific day. Because it's a new construction. Not turning the gas on when you promised caused delays and extra financial costs of when we can move in. Constellation associate had barking dogs in the background during our phone calls. sounded like central office is operating from a kitchen counter. Very unprofessional. I will drop gas account after contract period ends.

Vincent Pirruccio
April 18th, 2021

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Long time customer

(1.8 / 5)

  Have been with them for a couple years. Their prices are not great and the sneak in extra charges when setting you up initially. They did fix this for me, but only because I caught them and took the time to contact them. Then I had certain things removed from my account that they claimed would still be in effect and I did not find this out until it was needed. Shady.

Texas Cowboy
April 7th, 2021

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Absolutely abysmal customer service

(1.8 / 5)

  I never write reviews but this was such an inconvenience on my day I just had to. Theres zero reason that in 2020 it should take over an hour to set up service with this company. I sat on the phone for nearly 2 hours constantly being put on hold for 2 minutes more like 6-10 minutes after being asked a few simple 1 word response questions and giving basic info. By the time I was done I wanted to call back and cancel but didnt want to sit through another hour of that. Theyre lucky Im a forgiving person otherwise Id go with literally anybody else. Enough of the script reading, upgrade your computers, do whatever you have to do to lower the amount of time you put people on hold because its so unacceptable.

Derek
October 20th, 2020

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Will not follow through on transferring service

(1.8 / 5)

  Sold the business and they have dropped transferring the service to the new owner for a month with multiple contacts from each party

Pet Hopsital
August 17th, 2020

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Constant billing issues - Poor customer service - Fair pricing

(1.8 / 5)

  I went with Constellation because they were the only company offering a competitive 24-month fixed price natural gas plan with a reasonable customer service charge. Since then, I wish I would have chosen another company.

I have never had any billing issues with my three previous natural gas companies, but every other month I have a problem with Constellation. The frequently leave off the Atlanta Gas Light monthly charges and have to add them to your next bill. As such, I may be $20 one month and then $80 the next month because of the issue. My monthly bills look like a heart rate monitor when graphed. I've called them several times and they just apologize and say there's nothing they can do

Ryan
July 22nd, 2020

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Hidden charges

(1.8 / 5)

  They never disclosed the $40 a month that they add to the bill to pay for the meter surcharge they pay CenterPoint.

Adan
July 16th, 2020

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Constellation Energy 12 months plan 6.8 cent per kw

(1.8 / 5)

  I have to pay at 11 to 16 cent per kw when the usage less 1,000 kws even 20 kws away. I will find another company when the old contract is over.

Larry
April 9th, 2020

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Very disappointed with your customer service I called to change my gas provider and I thought I had a good customer service person and I felt happy that my new service will begin on Feb.3rd, but when I was not getting any bills I call back and found out my service never changed and nobody knows abut me at all

(1.8 / 5)

  Very bad,
I was told my service was switched to your co. But did not
I called back a few times to ask why and nobody knows except all asks be to songs up again
Your customer service is bad
I have no words to explain

Belay Asheber
February 25th, 2020

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Worse customer service ever!!!

(1.8 / 5)

  I switched over to this company and my gas is switched off from the previous company and stayed off. I went several nights without gas and this company is not open over the weekend. They even slapped me with a bill when they couldnt even connect my service. I ended up switching to a new company and Constellation is still sending me bills after they assured me I would not be charged for their inability to switch in my gas. Im thankful I recorded the phone calls with this company. Their customer service is the worse. Total dysfunction!

Do yourself a favor and avoid this company.

Brian
December 15th, 2019

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Facilities Manager

(1.8 / 5)

  Poor services

Dean
November 13th, 2019

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Expensive

(1.8 / 5)

  Wayyy to expensive!

Marissa
April 12th, 2019

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Great rates, horrible service

(1.8 / 5)

  Since signing up with Constellation in October of 2017, I have had nothing but problems with my bills from Constellation.

Auto pay took months to set up. I had to call them every month to make a payment because the web site would not show the actual amount of my bill.
The web site is misery - they always show me as overdue, would not reflect my payments, and never showed the correct amount I owed.
I never could download a copy of my bill from their web site. I had to switch back to paper billing. They never did send me hard copies of my previous bills.
December 2018 - there are at least 10 invoices posted to my account, which now shows as overdue, even though they charged my credit card for the December payment. I still can't download the invoices from the web site. I can only see they've posted several more amounts to my Bill in December.

When I asked for a supervisor to call me regarding my multiple complaints they told me a supervisor would call me back at an agreed upon date and time.
Instead, another customer service rep called me during my working hours and told me she couldn't arrange a time to call back - they were busy and I would just wait for them to call me back at their convenience. When someone called back (again during my working hours) they left a very arrogant message.

Believe me when I say their low rates are NOT worth the time and aggravation I've spent having to deal with them every month.

Donna F
December 28th, 2018

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Inefficient phone system and website never works

(1.8 / 5)

  Weve had Constellation for a year, and the website has never worked. At first, I could never log in with the forget password option just taking me in circles. They just changed to a new system, so my auto payment didnt process. I wasnt informed but discovered it half way through the month. I tried to make a one time payment online, but it wouldnt process. I had to call to do it and navigate through an unnecessarily long menu and figure which of 4 options was the correct customer #. Ive waited for them to get it together, but Im done. Im looking for a new company.

Not worth the cent less per month
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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