About Constellation

Constellation is a leading retail supplier of power and energy products and services in the United States.

The company is the nation’s largest producer of carbon-free energy and is headquartered in Baltimore. Its generation fleet powers more than 20 million homes and businesses, and it is working to accelerate the nation’s transition to clean energy with over 32,400 megawatts of capacity and annual output that is 90% carbon-free.

Constellation has set a goal to eliminate 100% of its greenhouse gas emissions by leveraging innovative technology and enhancing its diverse mix of hydro, wind, and solar resources paired with the nation’s largest carbon-free nuclear fleet.

The company’s retail businesses serve approximately 2 million residential, public sector and business customers, including three-fourths of the Fortune 100. At Constellation, the company is committed to providing the energy and services that will transform the future. Constellation’s next-generation technologies and offerings are combined with the country’s lowest carbon-generating fleet, making the company purpose-built to meet the challenges of the climate crisis.

For over a decade, Constellation has been a leader in clean energy production and is now accelerating the transition to a carbon-free economy, speeding delivery of low-carbon or no-carbon power to help families, communities, governments, and businesses meet their sustainability and decarbonization goals. Constellation is prepared to meet the challenge of climate change.

Contact Details


PUCT #10014

Address: 1221 Lamar St Ste 750 Houston, TX 77010-3038


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Table of Contents

Constellation - You have the Power To Choose Your Energy Company

Energy deregulation in Texas refers to the separation of the generation and retail sale of electricity from the transmission and distribution of electricity, which allows consumers to choose their electricity provider from a variety of options. The process was implemented in 2002 through legislation, leading to increased competition and potentially lower prices for consumers. However, it also created some challenges such as lack of oversight and market manipulation.

SlashPlan is a service that can help consumers navigate through the options and make an informed decision when choosing an energy plan. It compares plans from different providers and identifies the cheapest options available.

By using SlashPlan, Texas residents can easily save time and money on their electricity service. The service takes into account all hidden fees that providers may charge and provides a true apples-to-apples comparison, making it a user-friendly and efficient way to find the best deal on their electricity service.

Constellation Residential Electricity Plans

Constellation Energy offers a variety of energy plans for customers in Texas. Each plan has its own unique features, and the plans available may vary depending on the customer’s location. Here is a brief overview of some of the plans offered by Constellation Energy:

12 Month Green

12 Month Usage Credit

12 Month Usage Credit + A/C Protection

Month-to-Month plan

Constellation Business Energy Plans

Constellation offers customized energy solutions for businesses in its service area. To receive a quote, businesses can contact the company’s customer service team via phone or email. The quoted rates are tailored to the unique needs of each business, taking into consideration factors such as monthly usage rates, business size, and budget.

Looking to establish or switch plans for your business? We can help!

Shopping for a business plan is time-consuming and tedious. SlashPlan can provide you with live rates so you can compare plans quickly and accurately.

At no cost or obligation to you, we will find the top plans from 30+ competing suppliers in your area.

If you choose to sign up, the entire process can be completed online with e-signatures, so you don’t have to waste your precious time and resources.

Go to our Business Energy Comparison page to learn more.

Instant Online Enrollment

Switching energy companies?

Compare low-rate energy plans on SlashPlan

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Moving to a new home?

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Save Money

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Enter your zip code below to compare the best power plans in your area. It's free!

Energy Companies in Texas

Are you searching for a dependable electricity provider in Texas? Look no further. Our curated list of top-rated providers makes it simple for you to find the best option for your needs. Browse through our list, compare rates, and sign up with your chosen provider in just a few quick steps!

Energy Company

Phone Number

(833) 785-7797

1 (800) 871-8100

(866) 926-8192

(855) 784-2426

1 (833) 439-2852

(888) 853-5747

(877) 547-7275

(877) 544-4857

(866) 961-9399

(866) 963-9353

(888) 774-9846

(855) 461-1129

Constellation Reviews

SlashPlan provides detailed information about energy companies by gathering reviews and statistics from various sources such as the PUCT Customer Complaint Statistics, the Better Business Bureau (BBB), Google Reviews, Trustpilot, and more.

This information is then presented in an easy-to-read format on the provider's page for the convenience of the user.

In case the user wants to access the original sources of the information, links are provided for their reference. This allows the user to make an informed decision when choosing an energy company.

Constellation Customer reviews on the Better Business Bureau.
Google reviews for Constellation.
Constellation Customer reviews on ConsumerAffairs.

Constellation Service Areas

If you live in a deregulated area of Texas, you have the opportunity to choose Constellation as your energy supplier for your home and/or business.

Constellation offers services to the following utilities and service areas.

Constellation Customer Service

Need assistance? Reach out to Constellation's customer service team at:

  • Phone: (888) 900-7052
  • Email:

Constellation Bill Payment

If you need to pay your Constellation bill, use one of the following payment methods:

  • Pay Online: Log in to your My Constellation account and pay your bill online.
  • Pay by Phone: Call 833-221-6654 to pay over the phone.
  • Pay by Mail: Payments can be mailed to Constellation P.O. Box 5471 Carol Stream, IL 60197-5471

Constellation FAQ

Service can typically start either on the same day or the next business day after you sign up for it.

Cancellation fees vary depending on your plan and length of service. Please refer to the EFL document to determine if any early termination fees apply.

If you move to a new house, the cancellation fees will be waived.

Traditionally, power companies bill customers based on the amount of electricity used over a certain period of time, which can make it hard to predict energy costs from one month to the next. However, with a fixed-rate electricity plan from Constellation, customers pay the same supply rate for the entire duration of their contract. This can aid budgeting by shielding against spikes in demand, such as during a hot Houston summer, which can cause energy prices to increase.

Constellation offers a range of energy plans to choose from. To select the most cost-effective plan, you need to consider your home's monthly energy consumption measured in kilowatt-hours (kWh).

Looking for a plan from a different provider?
See other energy plans below:

25.0¢ kWh

10.5¢ kWh

15.8¢ kWh

16.9¢ kWh

14.9¢ kWh

22.1¢ kWh

46.5¢ kWh

15.0¢ kWh

18.3¢ kWh

27.5¢ kWh

16.1¢ kWh

19.0¢ kWh

13.5¢ kWh

16.0¢ kWh

17.2¢ kWh

36 month

15.8¢ kWh

18.8¢ kWh

Please note: The rates above are updated periodically. Current energy rates may have changed since our last update. To get the latest energy rates in your area please go to our comparison page and enter your zip code. Energy rates shown above are for a residential monthly consumption of 1000 kWh in zip code 77043.

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