Constellation Energy is an electricity provider for homes and businesses in Texas and several other deregulated energy states. Founded in 1995 in Maryland, Constellation has a long history in the energy industry.
In our Constellation Energy review, the company earned a nearly perfect 4.9 out of 5 stars. The rating is based on a customer survey of 1,600 Texans conducted in February 2025 and our research into customer satisfaction and experience.
Constellation offers unique energy plan perks for air conditioning repairs and electric vehicle owners. Keep reading to learn about Constellation Energy plans, rates and customer reviews.
Constellation Energy Plans
Constellation Energy offers a variety of fixed-rate electricity plans, but your options may vary by location. Many Constellation Energy plans include gimmicks like bill credits and time-of-use rates. We recommend reading the electricity facts label (EFL) before signing up to understand if you will benefit from the perks.
For example, the 12-month Fixed Rate + Bill Credit + A/C Protect Plus plan offers a $35 credit when you use 1,000 to 1,999 kWh each month. With the same plan, you earn an additional $15 credit when your usage equals or exceeds 2,000 kWh. Your potential discount depends on your energy usage. The A/C Protect Plus plans cover breakdowns and monitor your heating and air system’s performance.
Electric vehicle (EV) plans offer time-of-use rates with free electricity or discounted prices during off-peak hours. You can choose from 12 or 24-month options and two different time-of-use cycles. Consider charging overnight and scheduling charge hours to get the most out of the discounted or free electricity times.
Compare Constellation Energy rates and plans in the table below.
| Plan | Rate (Cents Per kWh) | Term Length | Features |
|---|---|---|---|
| Fixed Rate + Bill Credit + A/C Protect Plus | 14.2 | 12 months | Breakdown coverage of your HVAC system and water heater Performance monitoring of your A/C system Receive up to $50 per month in bill credits |
| Fixed Rate + Bill Credit + A/C Protect Plus | 14.4 | 36 months | Breakdown coverage of your HVAC system and water heater Performance monitoring of your A/C system Up to $50 per month in bill credits |
| Fixed Rate + Bill Credit | 13.9 | 5 months | Up to $50 per month in bill credits |
| Fixed Rate + Bill Credit | 13.9 | 12 months | Up to $50 per month in bill credits |
| Fixed Rate + Bill Credit | 14.2 | 36 months | Up to $50 per month in bill credits |
| 24 Month Electric Vehicle Plan | 14.4 Off-peak: 0 On-peak: 12.65 | 24 months | Off-Peak Start hour: Midnight On-Peak Start hour: 4 a.m |
| 12-Month Electric Vehicle Plan | 14.4 Off-peak: 0 On-peak: 12.71 | 12 months | Off-Peak Start hour: Midnight On-Peak Start hour: 4 a.m |
| 24-Month Electric Vehicle Plan | 14.5 Off-peak: 6.0 On-peak: 11.31 | 24 months | Off-Peak Start hour: 10 p.m On-Peak Start hour: 6 a.m |
| 12-Month Electric Vehicle Plan | 14.5 Off-peak: 5.81 On-peak: 11.45 | 12 months | Off-Peak Start hour: 10 p.m On-Peak Start hour: 6 a.m |
Plans above reflect rates for the Houston ZIP code 77077. Rates are accurate as of May 2025.
Our Thoughts on Constellation Energy
Constellation Energy is a top pick for electricity providers in Texas. Based on our customer survey, most customers stay with Constellation when their contract ends, and 74% have remained with the company for over two years.
It says something about the quality of the provider that its lowest score is a very high 4.8 out of 5 for customer satisfaction. This score is about 9% above the Texas average, and 60% of customers said they would recommend Constellation to a friend.
It generally offers plans with somewhat complicated rate structures, but most Constellation Energy electricity rates are close to the 14.89 cents per kWh Texas average rate. In our survey, 48% of customers reported paying at least $200 per month, which is above the $179 average electric bill in Texas. Despite this, Texans stay with Constellation for the company’s customer service and online experience.
Constellation Energy Reviews
Constellation Energy scores above the Texas average in each category we reviewed. It stands out with a perfect 5 out of 5 for customer service and retention. Customers also appreciate the plan length options and strong online review ratings, which reflect its positive overall reputation.
Pros and Cons
Pros:
- Unique appliance protection plans
- Perks for EV owners
- Solid customer service rating
Cons
- Many confusing rate structures
- Limited plan variety
- Hard to compare plans online
Constellation Energy vs. the Competition
Constellation Energy earned a 4.9 out of 5, placing it in between top competitors, such as Gexa Energy. Check out the snapshot below to see how Constellation compares with TXU Energy and Gexa Energy.
| Factor | Constellation Energy | TXU Energy | Gexa Energy |
|---|---|---|---|
| Our overall rating (out of 5) | 4.9 | 4.9 | 4.6 |
| Number of plans available | 7 | 10 | 16 |
| Top 12-month plan | Fixed Rate Green | Simple Rate 12 | Energy Saver 12 |
| Best feature | Appliance protection | Time of use plans | Cheap prices |
Where Is Constellation Energy Available?
Constellation Energy plans are available throughout Texas's six main transmission and distribution utility (TDU) service areas. However, plan offerings vary by location.
- AEP Central: Corpus Christi, McAllen, Victoria, Laredo, Harlingen
- AEP North: Abilene, San Angelo, Vernon
- CenterPoint Energy: Houston, Katy, Beaumont
- Lubbock Power & Light: Lubbock
- Oncor Electric: Dallas, Fort Worth, Irving, Waco, Arlington, Temple, Round Rock, Midland, Odessa
- Texas-New Mexico Power: League City, Glen Rose, Pecos, Angleton
Who Should Pick Constellation Energy?
Constellation Energy offers unique perks with its electricity plans that could be a good option depending on your usage. Learn more about which Constellation Energy plan fits your needs.
Aged Cooling System User
Constellation Energy plans with A/C Protect Plus offer a unique option for those with aged air conditioning systems or that require frequent repairs. These plans cover the cost of repairs and adjustments for heating, cooling, water heaters and electrical systems. Keep in mind that Constellation may require an inspection before providing coverage.
Historically High Usage
Constellation Energy’s Fixed Rate + Bill Credit plans might benefit those who regularly use above 2,000 kWh per month. You’ll receive a $35 credit when you use between 1,000 kWh and 2,000 kWh, then another $15 credit for exceeding 2,000 kWh. You can lock in your rate for five, 12 or 36 months.
Electric Vehicle Owner
The Electric Vehicle (EV) plans offer EV owners a way to save on energy costs by charging at night. These plans offer free or low-rate electricity during off-peak hours, like overnight and early in the morning. Constellation charges a higher rate during on-peak hours, such as during the day. These plans might benefit EV owners with the flexibility to charge vehicles during off-peak hours to save money.
Constellation Energy’s Electricity Facts Label
You will find the cost breakdown in your plan’s EFL, including the energy charge, utility fees and renewable percentage. Here’s an example EFL for the Fixed Rate Green plan in the TDU Oncor.
- Average price per kWh: These estimates show the average charges based on your energy use. The prices typically include bill credits, TDU fees and your energy charge.
- Base charge: Some providers or plans require a base charge or minimum usage fee. This charge varies by plan and provider but typically doesn’t cost more than about $10.
- Energy charge: This charge is what you pay per kilowatt-hour without considering discounts or bill credits. To understand potential total costs, it’s best to compare energy charges instead of average prices.
- TDU delivery charges: Your TDU charges a fee for delivering electricity. Delivery fees usually have a flat monthly charge and a fee based on usage.
- Type of product: This section indicates whether your plan has fixed rates or variable rates. Fixed rates remain constant throughout the contract term, but variable rates change based on the market.
- Contract term: This section details how long your contract lasts. Most energy providers offer 12, 24 and 36-month contract terms. In addition, Constellation has 18 and 20-month plan options.
- Early termination fee (ETF): Canceling a fixed-rate contract before its end date may result in an ETF. Constellation typically charges a $150 cancellation fee for fixed-rate plans.
- Renewable content: This section shows the percentage of your energy plan that comes from green energy. The average renewable percentage in Texas is 33%.
- Other disclosures: The disclosure section details if, why and how much your rate may change throughout your agreement.
Note the difference in rate across the three usage levels. While many bill credit plans have a very large rate range, this plan features a fairly reasonable range in rates because the usage credits are fairly small: $35 and $15, respectively. Also, note that the two usage credits apply at two different usage levels. We captured this EFL on January 14, 2025.
What Is the Best Way To Contact Constellation Energy?
Constellation Energy offers several contact options, including by phone, online chat, email and social media.
- Phone: Call 888-900-7052
- E-mail: Submit your message online
- Social media: Message on Facebook or X
- Home service contact: Schedule HVAC repairs or maintenance
If your home loses power, contact your utility company. As a retail electricity provider (REP), Constellation provides energy plans and manages billing while your TDU handles downed lines and outages.
Moving or Transferring Service with Constellation Energy
You can transfer your service to your new address if it's within the provider’s service area. Simply call Constellation’s customer service and let them know you’re moving. After providing a move-in date and updated address, Constellation will handle the transition.
When you request to move service, Constellation typically processes it the same day. However, the provider recommends initiating a move about 30 days in advance to ensure you have power when you need it.
Final take: Constellation Energy Offers Reasonable Rates on Bill Credit Plans
Constellation Energy has a reliable business history and offers a range of unique electricity plans in Texas. Its plan variety means you can switch plans as your energy needs change while staying with the same trusted provider. We like the energy plans available for those who own an EV or need extra appliance protection, as they are not common offerings with other providers.
However, the bill credit plans on the provider's website can be confusing and challenging to compare. As with any energy plan, thoroughly review the contract details and EFLs to avoid unexpected charges and find a plan that fits your energy needs. Additionally, if you’re looking for a more straightforward plan type, you may need to consider other providers, such as TriEagle Energy.
Frequently Asked Questions About Constellation Energy
Constellation usually charges a $150 ETF when you cancel a fixed-rate plan before the contract ends — even with a longer term of 24 or 36 months. This is fairly rare among providers. Many charge significantly higher cancellation fees for long-term contracts. Regardless, you can avoid an ETF if you’re moving outside Constellation’s service area or you have less than two weeks in your contract. Variable rate plans don’t have a cancellation fee because they are month-to-month plans without a long-term contract.
The average price per kilowatt-hour listed on your EFL is an estimate depending on the energy charge, TDU fees and potential base charge. These estimates assume you qualify for bill credits, making the total potentially misleading. We suggest comparing your typical usage to the average levels to determine how your rate may vary.
Yes, Constellation runs a soft credit check during the enrollment process. It won’t impact your score, but low credit or a history of late payments might result in paying a deposit to enroll in your plan. You can avoid deposit payments by requesting a letter of credit from your previous provider that shows your consistent payment history.
We recommend the Fixed Rate Green 12-month plan for competitively-priced renewable energy. However, the best Constellation electricity plan for you depends on your usage and what’s available in your area. Compare contract terms and energy charges to find the best plan for your needs.
How We Rate and Review Texas Electricity Companies
With dozens of providers and hundreds of plans available in the deregulated Texas market, choosing the right one can feel overwhelming. We created a comprehensive rating methodology to help you cut through the complexity and find the best electricity plan for your needs, whether you're moving to Texas or looking to switch providers.
We've researched dozens of Texas electricity providers and scored them out of 5 stars based on results from our 2025 energy survey of 1,600 Texans, scoring providers on customer satisfaction, experience and retention. Here's how these core factors weighed into our ratings:
- Customer satisfaction (30%)
- Customer retention (30%)
- Online experience (20%)
- Customer experience (20%)
