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.
“
I like the customer service that I receive from this provider. I have had two other companies and this is a step above them. Not much that you can say about utility companies, except how much they drain your wallet. But StarTex gives you ease of payment options (no service charges for Visa/MC) and great customer service. ”
— Israel
May 30th, 2018
We are so happy to hear that you had a great experience with Constellation, its been our pleasure!
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(4.7 / 5)
Happy with StarTex,
(4.7 / 5)
“
Today I received an update on the bad weather going through Houston, Texas. I am so satisfied with the rates and customer service. ”
— Charlotte Collins
May 30th, 2018
We are so happy to hear that you had a great experience with Constellation, its been our pleasure!
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(4.7 / 5)
Quality and Care
(4.7 / 5)
“
Customer Service from StarTex is excellent. Invoicing is clear and comprehensive. There are no extra charges. I do recommend this company ”
— Mauricio
May 30th, 2018
We are so happy to hear that you had a great experience with Constellation, its been our pleasure!
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(4.6 / 5)
Cheaper by the Kv
(4.6 / 5)
“
Easy to apply and follow through. ”
— Michael Kelting
March 29th, 2025
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(4.6 / 5)
jim albrycht
(4.6 / 5)
“
good choice ”
— good
March 21st, 2025
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(4.6 / 5)
Welcome change
(4.6 / 5)
“
Switched for better price. Glad that the switch was easy and account set up easy as well. ”
— Momma
September 10th, 2024
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(4.6 / 5)
Why I chose Constellation
(4.6 / 5)
“
I chose constellation for two special reasons . 1 a 36 month contract . 2 price . ”
— Dennis Anderson
May 5th, 2024
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(4.6 / 5)
To new!
(4.6 / 5)
“
I don't think it has changed yet or just changed so not a lot to report ”
— Robert Chittenden
July 23rd, 2023
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(4.6 / 5)
A little confusion. Easily cleared up.
(4.6 / 5)
“
Upon getting what I thought was first bill it had an inappropriate rate assigned to it. Called customer service and was explained meter reading date was the issue. Subsequent bill was correct. ”
— Mark
July 14th, 2023
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(4.6 / 5)
Good, so far
(4.6 / 5)
“
I have only been with Constellation for a month, so it remains how Constellation will be for the rest of the year. But so far, my experience has been very positive. ”
— 1279tnk23yar
July 2nd, 2023
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(4.6 / 5)
AOK
(4.6 / 5)
“
SO FAR- SO GOOD ”
— T C LOWER
June 30th, 2023
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(4.6 / 5)
Smooth transition
(4.6 / 5)
“
Switching over was easy and the new plan will keep costs under control ”
— amharts
November 7th, 2022
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(4.6 / 5)
Some savings
(4.6 / 5)
“
Constellation provides straight forward savings without an Early Termination fee. ”
— Gerry R
November 7th, 2022
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(4.6 / 5)
Initial review
(4.6 / 5)
“
too early to tell but rates are comparable to others ”
— Pat
August 7th, 2022
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(4.6 / 5)
Electricity
(4.6 / 5)
“
Conversion went smoothly and I savemoney ”
— Margaret Berold
August 3rd, 2021
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(4.6 / 5)
Currently pleased
(4.6 / 5)
“
Fairly easy to complete service. ”
— John
July 21st, 2021
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(4.6 / 5)
No gas bill
(4.6 / 5)
“
Havent received a bill yet it has been 2 months service was amazing and good ”
— Anthony
January 18th, 2021
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(4.6 / 5)
Gas for less
(4.6 / 5)
“
Got a great price for my natural and the price never changed during my contract. No problems with bill pay. ”
— Ddl
November 14th, 2020
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(4.6 / 5)
New electrical Source
(4.6 / 5)
“
I thought I was getting a little bit rate than the results ”
— Robert Mercer
September 22nd, 2020
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(4.6 / 5)
Expensive
(4.6 / 5)
“
Everything went smoothly transitioning to constellation. I dont about leaving them just yet as that will be coming up soon. ”
