Explore Constellation Plans
PROVIDER REVIEW
Constellation Review 2026
Constellation is a Fortune 500 energy company and the nation’s largest producer of carbon-free energy, serving Texas customers since 2001. After acquiring Houston-based StarTex Power in 2011, they’ve established a significant presence in the deregulated market. Customer sentiment is notably strong, with a 5.0/5.0 star rating and an impressive NPS of 89. Their regulatory track record is equally solid—just 39 PUC complaints over the past 12 months, well below the industry average of 120. Billing clarity scores (72/100) suggest some room for improvement in statement transparency.
CONSTELLATION
Complete Provider Analysis
Beyond standard electricity service, Constellation differentiates itself through bundled home protection plans that include A/C coverage and HVAC monitoring. Their rewards program lets customers earn points on bill payments, redeemable for gift cards. Budget-conscious customers benefit from weekly usage alerts and monthly bill projections, while qualifying plans offer up to $600 annually in usage-based credits. The company also reimburses up to $150 in early termination fees for customers switching from other providers.
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)
39
Complaints per 10K Customers
0.50
Industry Average
1.20
Billing Complaints
16
Slamming/Cramming
11
Service Quality
0
Monthly Complaint Trends (Jan 2022 – Mar 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 gone through four Energy Providers, each with their own gimmick to entice you to switch. I will admit I am a sucker for saving money because I am retired and on a fixed income – every penny counts. When I signed up for Constellation service, I was hesitant at first, but when they came to optimize my HVAC and replaced failing parts FREE OF CHARGE with no trip fees and no hassle, performed by the most courteous technician, I WAS IMPRESSED! I encourage everyone to give them a try.”
Verified
“From the day I became a Constellation customer I’ve received nothing but excellent service and outstanding customer support. Constellation is reputable when it comes to promising lower electricity bills, and they are honorable with maintaining customer rewards, perks, and referral bonuses. I highly recommend Constellation!”
Verified
“The weekly update of electrical use and projected bill for the month gives a budgeting feature for a utility bill. If it is unusually high, it gives an opportunity to see what is running that shouldn’t be or something that needs to be turned off. Great tool for managing expenses.”
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 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 the information you need is there and easy to read.”
Critical Feedback
Verified
“I recently picked Constellation Energy from Power to Choose and signed up online. This was the worst sign-up experience I’ve ever had. They switched my energy on the spot without providing me the opportunity to select a future date, so be careful with that before finalizing the transaction. I called customer service and the person I spoke with was in sales and very aggressive. I told him I wanted a six-month plan and he was signing me up for a 36-month plan anyway.”
Verified
“They have higher rates than Reliant Energy and their contract is 36 months. This is insane. I don’t recommend this company – stay away!”
FINAL VERDICT
Our Recommendation
Constellation: Recommended
Reliable choice backed by clean energy leadership
Constellation earns a clear recommendation for Texas electricity customers. As the nation’s largest clean energy producer, the company brings substantial resources and stability to its retail operations. Customer sentiment is exceptionally strong, with a 5.0/5.0 star rating and an impressive NPS of 89, indicating customers consistently recommend the provider. Service scores are solid at 75/100 for customer service and 72/100 for billing clarity—not perfect, but well above problem territory. On the regulatory front, Constellation recorded just 39 PUC complaints over 12 months, significantly below the industry average of 120, suggesting fewer escalated disputes. The combination of bundled electricity and home services plans adds convenience for customers who prefer consolidated billing. While billing clarity could be sharper, the overall package makes Constellation a dependable option, particularly for those prioritizing a large, established provider with genuine clean energy credentials.
Pros
- Outstanding 5.0/5.0 star rating reflects excellent overall performance
- Exceptional customer loyalty with NPS score of 89
- Strong customer service rating at 75/100
- Good billing transparency score of 72/100
- Only 39 complaints versus 120 industry average
- Zero service quality complaints in past 12 months
- Complaint rate 67% below industry average
Cons
- Billing-related complaints account for 41% of total issues
- 11 slamming/cramming complaints warrant some caution
- Billing transparency score leaves room for improvement
- Customer service score good but not exceptional
Best For
- Customers prioritizing clean and renewable energy options
- Those seeking bundled electricity and home services plans
- Shoppers who value a large, financially stable provider
- Customers wanting fewer billing and service disputes
- Homeowners looking for one-stop utility convenience
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
14.3¢/kWh
Market Rank
#5 of 17
vs Market Average
9.9% below
Market Average
15.8¢/kWh
All Texas Providers (1000 kWh/month)
| Rank | Provider | Avg ¢/kWh | Lowest | Highest | # Plans |
|---|---|---|---|---|---|
| #1 | Rhythm Energy | 12.13¢ | 6.60¢ | 17.24¢ | 24 |
| #2 | 4Change Energy | 13.67¢ | 6.50¢ | 19.21¢ | 35 |
| #3 | Energy Texas | 13.68¢ | 6.60¢ | 17.24¢ | 24 |
| #4 | Atlantex Power | 14.14¢ | 12.63¢ | 15.70¢ | 10 |
| #5 | Constellation This Provider | 14.27¢ | 13.12¢ | 15.32¢ | 11 |
| #6 | APGE | 14.92¢ | 6.40¢ | 23.40¢ | 94 |
| #7 | Cirro Energy | 15.54¢ | 6.79¢ | 22.21¢ | 31 |
| #8 | Frontier Utilities | 15.58¢ | 6.78¢ | 21.82¢ | 30 |
| #9 | Discount Power | 15.59¢ | 6.79¢ | 22.21¢ | 31 |
| #10 | Gexa Energy | 15.60¢ | 6.78¢ | 21.82¢ | 30 |
| #11 | Just Energy | 15.85¢ | 6.24¢ | 23.51¢ | 69 |
| #12 | Reliant | 16.23¢ | 11.95¢ | 20.61¢ | 39 |
| #13 | Amigo Energy | 16.54¢ | 15.40¢ | 17.83¢ | 24 |
| #14 | Tara Energy | 16.82¢ | 16.49¢ | 17.20¢ | 5 |
| #15 | Direct Energy | 17.78¢ | 14.50¢ | 23.58¢ | 25 |
| #16 | TXU Energy | 18.62¢ | 13.53¢ | 24.59¢ | 39 |
| #17 | Green Mountain | 18.94¢ | 16.95¢ | 23.61¢ | 20 |
| #18 | Payless Power | 18.96¢ | 18.73¢ | 19.28¢ | 8 |
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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