Explore Constellation Plans
PROVIDER REVIEW
Constellation Review 2026
Constellation brings significant scale and stability to the Texas electricity market, backed by parent company Constellation Energy Corporation, a Fortune 500 company and the nation’s largest producer of carbon-free energy. Operating in Texas since 2001 and expanding through their 2011 acquisition of Houston-based StarTex Power, they’ve built a strong reputation among customers. Their 4.9-star rating and impressive NPS of 88 reflect high satisfaction levels. With just 52 PUC complaints over the past year—well below the 120-complaint industry average—their regulatory track record is notably solid.
CONSTELLATION
Complete Provider Analysis
Constellation differentiates itself through bundled electricity and home services plans, including A/C protection with HVAC monitoring. Their Rewards program lets customers earn points for bill payments, redeemable for gift cards. While customer service scores (74/100) and billing clarity (72/100) suggest some room for improvement in communication, their recognition as a Top 5 Texas Electricity Provider six times in eight years speaks to consistent performance.
2TIO NPS REVIEW
Customer Satisfaction Analysis
Our NPS (Net Promoter Score) methodology filters out incentivized reviews, bot-generated feedback, and competitor manipulation to give you an accurate picture of real customer satisfaction.
Score Breakdown
How We Calculate NPS Scores
Our proprietary algorithm analyzes thousands of customer reviews from multiple sources including Google, BBB, and the PUC. We filter out reviews that show signs of manipulation, including incentivized feedback, review bombing, and bot-generated content. The resulting score reflects genuine customer sentiment based on real experiences.
PUC COMPLAINT HISTORY
Public Utility Commission Data
The Texas Public Utility Commission tracks complaints filed against retail electricity providers. Below is Constellation’s complaint history from the PUC database.
Total Complaints (12 mo)
55
Complaints per 10K Customers
0.50
Industry Average
1.20
Billing Complaints
21
Slamming/Cramming
18
Service Quality
0
Monthly Complaint Trends (Jan 2022 – Feb 2026)
Complaint Categories Explained
Issues related to incorrect charges, unexpected fees, meter reading disputes, and payment processing problems. This is the most common category of complaints across all providers.
Slamming: Switching a customer’s electricity provider without proper authorization or consent.
Cramming: Adding unauthorized charges or services to a customer’s electricity bill.
Issues with customer service responsiveness, account management, communication quality, and overall service experience.
Complaints about improper service disconnection, insufficient notice before disconnection, or issues with reconnection after payment.
VERIFIED CUSTOMER REVIEWS
What Customers Are Saying
Real reviews from verified Constellation customers. We display a balanced selection of positive and critical feedback to give you the complete picture.
Positive Experiences
Verified
“I have been a Constellation customer for 4 years now and couldn’t be happier with their service. I’ve never had any issues and the website is super easy to navigate. All of your information you need is there and easy to read.”
Verified
“I’m so glad I made the switch to Constellation when I did. It was a nightmare with the previous company as I was constantly worried about how much my bill was going to be at the end of each billing cycle due to the lie they sold me on a free weekend plan. Since switching to Constellation, I no longer have to worry.”
Verified
“I rated them four stars because I think most people don’t believe you when you put five, lol. All in all, Constellation is a pretty good company. I have not had any real large issues and any issue I did have was resolved fairly timely. I usually get prompt response from Customer Service and any issues with my bill are usually resolved both in my favor and to my satisfaction.”
Verified
“Joined Constellation after carefully shopping all options and think I found the best price with what has been a stellar company experience… and now earning fun, useful rewards are a possibility! Thank you Constellation!”
Verified
“Reasonably priced electricity, super customer service AND free perks… highly recommend Constellation. Have been a customer for years and always a positive experience.”
Critical Feedback
Verified
“I’m a new customer but I’m already fairly skeptical of them as a carrier. Their identity verification process was a NIGHTMARE. It took multiple tries and eventually back and forth emails to be told that the reason my ID kept getting rejected was because my last name appears first on my driver’s license, followed by my first name. Which… okay… You’re verifying TEXAS IDs in TEXAS. HOW is this an actual, customer-facing issue?”
Verified
“I renewed with them before my contract expired. I thought I was set for the next year. Somehow they could not find my info and switched me back to UI. Not happy at all!”
Verified
“These guys charge my 1 bedroom apartment, which I keep around 74 degrees and almost never turn lights on in, almost 250 dollars a month. As a military member they will not give me the military rates either. Choose someone else.”
FINAL VERDICT
Our Recommendation
Constellation: Recommended
Strong choice for bundled services and clean energy
Constellation earns our recommendation as a reliable choice for Texas electricity customers. As the nation’s largest clean energy producer, they bring substantial scale and stability to the market. Customer sentiment data is impressive, with a 4.9/5.0 star rating and an exceptional NPS score of 88, indicating strong customer loyalty. Their customer service score of 74/100 and billing clarity score of 72/100 are solid, though there’s room for improvement in communication transparency. On the regulatory front, Constellation performs well with just 52 PUC complaints over 12 months—less than half the industry average of 120. While their bundled electricity and home services model may not suit everyone, customers seeking a large, established provider with clean energy commitments will find Constellation delivers consistent value and service quality.
Pros
- Exceptional 4.9/5.0 star rating indicates excellent overall performance
- Outstanding customer loyalty with NPS score of 88
- Well below average PUC complaints (52 vs industry 120)
- Zero service quality complaints in past 12 months
- Excellent customer service score of 74/100
- Strong billing transparency score of 72/100
- Less than half the industry average complaint rate
Cons
- Some billing statement confusion reported (20 complaints)
- Slamming/cramming complaints exist (18 in 12 months)
- Billing transparency could improve from 72/100 score
- Customer service score has room to grow beyond 74/100
Best For
- Customers prioritizing clean and renewable energy options
- Those seeking bundled electricity and home services packages
- Homeowners wanting a large, financially stable provider
- Customers who value provider reputation and longevity
- Those looking for below-average complaint rates
PRICE COMPARISON
How Constellation Compares
See how Constellation’s electricity rates compare to other Texas providers. Prices shown are averages based on the selected monthly usage level.
Constellation Avg Price
15.4¢/kWh
Market Rank
#8 of 17
vs Market Average
5.8% below
Market Average
16.4¢/kWh
All Texas Providers (1000 kWh/month)
| Rank | Provider | Avg ¢/kWh | Lowest | Highest | # Plans |
|---|---|---|---|---|---|
| #1 | 4Change Energy | 14.24¢ | 7.60¢ | 19.88¢ | 35 |
| #2 | Just Energy | 14.51¢ | 6.48¢ | 21.75¢ | 53 |
| #3 | APGE | 14.60¢ | 7.80¢ | 20.80¢ | 76 |
| #4 | Cirro Energy | 14.98¢ | 8.00¢ | 21.61¢ | 26 |
| #5 | Discount Power | 15.04¢ | 8.00¢ | 21.61¢ | 26 |
| #6 | Tara Energy | 15.21¢ | 12.29¢ | 18.50¢ | 15 |
| #7 | Energy Texas | 15.38¢ | 9.35¢ | 20.86¢ | 20 |
| #8 | Constellation This Provider | 15.44¢ | 13.41¢ | 17.62¢ | 7 |
| #9 | Rhythm Energy | 15.87¢ | 9.35¢ | 20.86¢ | 16 |
| #10 | Atlantex Power | 16.16¢ | 14.38¢ | 18.20¢ | 10 |
| #11 | Frontier Utilities | 17.23¢ | 8.09¢ | 22.42¢ | 30 |
| #12 | Reliant | 17.24¢ | 11.95¢ | 22.61¢ | 50 |
| #13 | Gexa Energy | 17.28¢ | 8.09¢ | 22.42¢ | 30 |
| #14 | Amigo Energy | 17.72¢ | 16.59¢ | 19.60¢ | 22 |
| #15 | Direct Energy | 17.77¢ | 14.90¢ | 23.58¢ | 20 |
| #16 | Payless Power | 18.56¢ | 17.98¢ | 19.19¢ | 8 |
| #17 | Green Mountain | 18.80¢ | 16.95¢ | 23.61¢ | 20 |
| #18 | TXU Energy | 18.90¢ | 13.88¢ | 24.55¢ | 44 |
No 100% Renewable Plans
Constellation does not currently offer any 100% renewable energy plans. If green energy is a priority, consider providers like Green Mountain, Gexa Energy, or Rhythm Energy.
Our Methodology
How We Calculate NPS Scores
Our proprietary scoring system analyzes thousands of customer reviews to provide an unbiased assessment of each electricity provider.
- Data Source: Online Reviews from verified customers
- AI Analysis: We analyze each review to distill sentiment and filter out incentivized reviews, bot-generated content, and review bombing attempts
- True NPS Calculation: We calculate Net Promoter Score as (% Promoters) – (% Detractors), where Promoters rate 9-10 and Detractors rate 1-6
- Star Rating: NPS scores are mapped to a 3.0-5.0 star scale for intuitive comparison
About “Billing Clarity” Scores
This score measures how clearly a provider communicates billing to customers—not billing accuracy. Texas electricity providers have robust, audited billing systems that are highly accurate.
- What we measure: Clarity of bill statements, proactive notifications, explanation of credits and charges, time-of-use rate communication
- Why it matters: Customers often report confusion about bills even when charges are correct—this score reflects how well providers help customers understand their bills
- PUC “billing complaints”: Most are about confusing statements or unexpected (but legitimate) charges, not actual billing errors
Pricing Data Collection
We collect electricity plan pricing directly from official sources to ensure accuracy.
- Data Source: ComparePower, the original Texas electricity consumer advocate
- Update Frequency: Prices are synced daily from all 5 TDSP territories
- Usage Levels: We display pricing at 500, 1000, and 2000 kWh/month to show how rates vary by consumption
- Coverage: All 17 retail electricity providers in the Texas deregulated market
PUC Complaint Data
Complaint data provides insight into provider accountability and customer issues.
- Data Source: Texas Public Utility Commission (PUC) official complaint records
- History: 46+ months of historical complaint data (January 2022 – Present)
- Categories: Billing, Slamming/Cramming, Quality of Service, Disconnection, and Other
- Update Frequency: Monthly updates as new PUC data becomes available
Questions about our methodology? Contact our team.
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