Constellation Energy® Rates, Plans, Code | 888-900-7052

Constellation Energy (formerly StarTex Power) is a major electric company offering Texas electricity rates. Review objective information on Constellation Energy electricity plans and rates below, and use our guides to help you choose the best energy plan.

Compare rates from Constellation on their website with special discounted electricity rates from top electric companies in Texas below.

Compare Constellation Energy Plans to Top Electric Companies

9 Gexa Energy Vetted Guaranteed Plans

Plan NamePlan LengthRate
Gexa Eco Saver Plus 1212 Months11.3 ¢/kWh
Gexa Eco Saver Plus 2424 Months11.3 ¢/kWh
Gexa EV 2424 Months14.8 ¢/kWh
Gexa Energy Saver 2424 Months15.9 ¢/kWh
Gexa Saver Freedom 3636 Months17.1 ¢/kWh
Gexa Eco Saver Advantage 1212 Months19 ¢/kWh
Gexa Eco Saver Lite 1212 Months19.5 ¢/kWh
Gexa Eco Saver Premium 1212 Months20.2 ¢/kWh
Gexa Eco Saver Premium 2424 Months20.2 ¢/kWh
  • *Rates as of 03/19/2024 at 12:29 AM. Based on 1000 kWh in Oncor zone. Enter your zip code above for rates in your area.

Call Gexa (855-639-8212)

8 4Change Energy Plans & Rates

Plan NamePlan LengthRate
4Change - Maxx Saver Select 1212 Months11.3 ¢/kWh
4Change - Maxx Saver Select 2424 Months11.3 ¢/kWh
4Change - Cash Money 1212 Months14.1 ¢/kWh
4Change - Charitable Saver 1212 Months14.2 ¢/kWh
4Change - One Rate 2424 Months15.7 ¢/kWh
4Change - One Rate 1212 Months16.3 ¢/kWh
4Change - Power Maxx Saver 1212 Months17.4 ¢/kWh
4Change - Power Maxx Saver 2424 Months18.1 ¢/kWh
  • *Rates as of 03/19/2024 at 12:29 AM. Based on 1000 kWh in Oncor zone. Enter your zip code above for rates in your area.

Call 4Change (888-366-7291)

8 Frontier Energy Plans & Rates

Plan NamePlan LengthRate
Frontier - Frontier Saver Plus 1212 Months11.3 ¢/kWh
Frontier - Frontier Saver Plus 2424 Months11.3 ¢/kWh
Frontier - Smart Budget 2424 Months14.9 ¢/kWh
Frontier - Smart Budget 3636 Months15 ¢/kWh
Frontier - Smart Budget 1212 Months15.2 ¢/kWh
Frontier - Frontier Saver Value 1212 Months19.4 ¢/kWh
Frontier - Frontier Saver Max 1212 Months20.2 ¢/kWh
Frontier - Frontier Saver Max 2424 Months20.2 ¢/kWh
  • *Rates as of 03/19/2024 at 12:29 AM. Based on 1000 kWh in Oncor zone. Enter your zip code above for rates in your area.

Call Frontier (855-782-8379)

6 Reliant Energy Trusted Plans & Rates

Plan NamePlan LengthRate
Reliant - Conservation 2424 Months15.5 ¢/kWh
Reliant - Basic Power 2424 Months15.8 ¢/kWh
Reliant - Conservation 1212 Months15.9 ¢/kWh
Reliant - Basic Power 1212 Months16.2 ¢/kWh
Reliant - Truly Free Weekends 100% Solar 1212 Months17.8 ¢/kWh
Reliant - Truly Free Nights 100% Solar 1212 Months18.2 ¢/kWh
  • *Rates as of 03/19/2024 at 12:29 AM. Based on 1000 kWh in Oncor zone. Enter your zip code above for rates in your area.

Call Reliant (866-735-1218)

Reviews & Ratings

It’s highly recommended that you check Constellation Energy reviews from Texas citizens before locking in an energy rate. Here are Constellation reviews and ratings on their pages at Consumer Affairs, Google, and Yelp, which you may find insightful.

At Home Energy Club we gather customer opinions and reviews from independent review sites, the State of Texas Public Utility Commission Complaints Stat, and other review sources.

We use this information combined with our own expertise to determine a rating score for each energy provider.

HEC Constellation Energy Rating Score: 4.2/5

Customer Ratings

Constellation Energy shows fair rating scores for most of the reviewed categories, with a score of over 4.5 in one of the five reviewed categories.

Customer Reviews

Visit our Constellation Energy Reviews page to read more.

On review sites, always scroll down past the initial reviews to gain a more unvarnished view of consumer input. Also, note that consumers who post reviews about electric companies tend to have had negative experiences.

You can compare Texas electric company reviews side by side on our reviews page.

Constellation Rates & Plans

Constellation offers Texas electricity plans with a range of energy rates and contract lengths. Review the plan details and Electricity Fact Label for each rate plan to determine if it fits your home’s usage. For additional support, contact customer service.

Types of Electricity Plans

Constellation Energy electricity plans include fixed-rate plans that lock in your energy rate for the term of the contract, variable-rate energy plans that have floating rates, so-called free electricity plans that offer energy at no cost on nights and/or weekends, and 100% “green” renewable energy plans.

Free Electricity and Gadgets

“Free” energy for specified days and times of day may end up costing you more than regular electricity rates due to your home’s usage patterns and the plan’s energy rate during non-free periods. Be certain to carefully read the Electricity Fact Label (EFL) for such plans. Also, our Electricity Fact Label guide for Texas electricity customers will show you how to use the EFL to choose the right plan for your home.

Check our promo codes page for availability of a Constellation Energy promo code. You will also find electricity promo codes for other top electric companies in Texas. Our exclusive promotional codes provide a discount off the rates of electric companies on their websites.

Moving to the Lone Star state? Find info on Texas electric companies in Houston and electric companies in Dallas, as well as other helpful electricity-related information related to those cities, including EV charging stations and available electricity rates and plans.

How Constellation Compares to Top Energy Providers

Constellation Energy usually doesn’t have the best electricity rates in Texas, but their rates are competitive with large light companies in Texas.

You can have the comfort of knowing that Constellation is a well established light company, especially in the commercial electricity market. They reportedly acquired StarTex Energy to gain a foothold in the Texas residential market.

To compare electricity rates from top residential electric companies to those of Constellation, view the rates on their site, then input your zip code and home size into the box in the upper right corner of this page and see how they stack up.

Customer Service

If you need to reach Constellation customer service, call 888-900-7052. Their hours are from 7 am to 8 pm CST Monday through Friday, and 8 am to 5 pm CST Saturdays.

Requirements to Start Service

You can easily start your energy service with Constellation online or over the phone.

They may require a deposit depending on your credit score, and be sure to have your identification information.

Compare electricity rates vetted to cut billing surprises

Paying Your Bill

If you wish to pay your bill online, visit the Constellation Energy Bill Pay page or pay by phone at 888-900-7052.

It’s helpful to visit the Smart Meter Texas website and review your home’s electricity usage periodically to make sure the usage information on your bill matches your home’s meter usage.

Renewable Energy Plans

The Constellation Electric Company isn’t categorized as one of the low rate energy companies in Texas.

Their renewable energy rates are generally higher than those of Gexa Energy (who offers a 60-day Happiness Guarantee), TriEagle Energy (sister company to TXU), and Pulse Power and Lone Star Energy (credible discount providers).

These alternative providers are considered high quality, cheap electric companies.

Compare Texas electricity rates vetted to prevent billing surprises

Switching, Moving, and Cancellation Fees

We created a very useful Savvy Shopper’s Guide to help you find an energy plan that matches your home’s consumption needs if you’re switching and wish to choose from other light companies in Texas.

Transferring Your Energy Plan

You can conveniently transfer your energy plan when you move to a different address in a deregulated area of Texas. Give them a call to discuss your change of address at least a month in advance of your move.

What to Do During a Power Outage

If you experience a Constellation Energy power outage, contact the Transmission and Delivery Utility (TDU or TDSP) in your area. See our handy Texas power outage phone directory.

To report a power outage in Texas, please contact your local area TDU:

  • Oncor: 888-313-4747
  • AEP: 866-223-8508
  • Centerpoint Energy: 800-332-7143
  • Texas New Mexico Power (TNMP): 888-866-7456
  • Sharyland Utilities: 800-545-4513

Also find electricity information for Texas cities, including electric companies, TDUs, EV charging stations and more.

About Constellation Energy

Constellation Energy, formerly StarTex Power, is one of the largest electric companies in North America, but is not one of the top brands in relation to residential energy providers in Texas.

They offer an assortment of fixed rate energy plans for various term lengths, as well as renewable energy plans, and competitive prices.

Business Information

Their headquarters in Texas are located at 1001 Louisiana St Suite 2300, Houston, TX 77002, United States.

You can reach their corporate headquarters at 888-900-7052.

Top Texas Municipalities Serviced

Deregulated Cities
Houston
Dallas
Fort Worth         
Katy
Laredo
Waco
Midland
Corpus Christi       
Frisco
McAllen
Galveston
Irving

See all deregulated cities in Texas.

Top Texas Zip Codes Serviced

Enter your zip code for cheap rates in your area

Constellation Energy Frequently Asked Questions

Where can I pay my Constellation Energy bill?

There are quick and easy Constellation Energy bill pay options for Texas customers, such as the ones below:

  • Online bill pay using your Constellation Energy login
  • Automatic Constellation Energy bill pay for recurring payments
  • Phone bill payment using the 24/7 automated system at 833-221-6654
  • Check bill pay mailed to P.O. Box 5471, Carol Stream, IL 60197-5471

Is Constellation a good energy company?

To determine whether Constellation Energy is a good company, we suggest that you read verified Constellation reviews and ratings from reputable independent sources on HomeEnergyClub.com.

If you search for Google reviews, you’ll find that while they previously had negative reviews, they seem to have turned things around.  Constellation now has a 4-star rating out of 5 stars from thousands of verified customer reviews.

What does Constellation Energy do?

Constellation Energy is an electric company that provides natural gas, electricity, and renewable energy to Texas customers. Constellation serves integrated energy solutions and management products across the United States. The company changed the name of its StarTex Energy residential electricity brand to its Constellation brand.

Constellation Energy was founded in 1999. Its headquarters are in Baltimore, Maryland. Before the acquisition by Exelon, Constellation operated over 35 power plants in the country.

Does Constellation Energy have an app?

The company offers an energy-saving app called Constellation Connect. You can download and connect the Constellation app to a variety of smart home devices like Google Home or Amazon Alexa. You can manage your smart devices with voice control as the app interacts with lighting and security systems to improve your home’s energy efficiency.

Who bought Constellation Energy?

Exelon Corp., a Fortune 100 energy company, bought Constellation Energy in 2012. Exelon has 10 million electricity customers in the United States. Exelon is also one of the largest nuclear power plant operators in the country.

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On Home Energy Club, our cost calculator widget helps you to choose an energy plan by performing detailed calculations so you can quickly compare estimated plan costs based on your historic usage data and publicly-available data. Your actual future bill amounts will depend on your future energy usage, which cannot be precisely determined, so the accuracy of plan cost data cannot be guaranteed. You should always read the details of an energy plan’s Electricity Facts Label (EFL) to decide if it’s a fit for your home.

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