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"There are 100 REPs in Texas" is a misleading number.
Most TX provider guides list every brand on Power to Choose as if each were independent. They are not. The majority belong to five corporate families, and many "competing" brands sit under the same wholesale desk with similar margins.
That matters for two reasons. First, when one family raises its hedge cost, every brand it owns tends to move together. Second, customer-service quality, billing systems and complaint patterns travel with the parent, not with the brand on your bill.
Once you know the families, the directory becomes useful. You can stop chasing 100 logos and start picking the right brand inside each family for your usage and your TDU.
The five TX REP corporate families.
Each card lists the parent, the brands it owns in Texas, and the brand positioning. Independents are grouped together because none has the scale of the five majors.
Family 1
Vistra
Irving, TX. NYSE:VST. The biggest residential REP group in Texas; runs generation plus retail under one roof.
- TXU Energy ; brand-name fixed plans.
- Ambit Energy ; MLM referral model.
- TriEagle Energy ; mid-tier fixed.
- 4Change Energy ; charity-linked.
Family 2
NRG
Houston + Princeton. NYSE:NRG. Acquired Direct Energy in 2021, owns more retail brands than any other parent in Texas.
- Reliant Energy ; brand-name positioning.
- Direct Energy ; sister brand to Reliant.
- Green Mountain ; 100% renewable.
- Discount Power ; budget tier.
- First Choice Power ; prepaid + fixed.
- CPL Energy ; South Texas legacy.
- Stream Energy ; ex-MLM.
Family 3
Constellation
Baltimore. Nasdaq:CEG. Exelon spin-off in 2022; absorbed Champion Energy via the Calpine acquisition in January 2026.
- Constellation Energy ; nuclear-heavy fleet.
- Champion Energy ; ex-Calpine retail.
Family 4
Just Energy
Mississauga, ON. Private since 2022 after Chapter 11. In Texas, the brand most consumers see is Amigo Energy.
- Amigo Energy ; bilingual EN / ES focus.
Family 5
Independents & niche owners
Smaller privately held or single-purpose parents that did not consolidate into the big four. Mostly prepaid, niche-green, or single-state plays.
- APG&E ; privately held, 6 states.
- Payless Power ; prepaid, no-credit-check.
- Think Energy ; Energywell LLC since Nov 2022.
- IGS Energy ; private, family-owned, Dublin OH.
- Varsity Energy ; independent, PUCT REP #10271.
- Pennywise Power ; retired 2019, history only.
- Bulb Energy ; defunct in TX, redirects.
Every Texas REP we cover, grouped by parent.
Each row links to a full provider page with phone numbers, login portals, contract terms and customer feedback.
| Parent family | REP brand | Plan focus | Page |
|---|---|---|---|
| Vistra |
TXU Energy
|
Brand-name fixed, Free Nights plans | View page |
Ambit Energy
|
Fixed plans via MLM consultants | View page | |
TriEagle Energy
|
Mid-tier fixed and green plans | View page | |
4Change Energy
|
Fixed plans with charity tie-in | Contact page | |
| NRG |
Reliant Energy
|
Brand-name fixed, smart-home bundles | Contact page |
Direct Energy
|
Fixed plans, multi-state operator | View page | |
Green Mountain Energy
|
100% renewable since 1997 | View page | |
|
Discount Power
|
Budget fixed and prepaid plans | View page | |
|
First Choice Power
|
Prepaid plus fixed positioning | View page | |
CPL Energy
|
South Texas legacy, Direct Energy / NRG | View page | |
Stream Energy
|
Fixed plans; ex-MLM, NRG since 2019 | View page | |
| Constellation |
Constellation Energy
|
Fixed plans, nuclear-heavy fleet | View page |
Champion Energy
|
Ex-Calpine; Constellation since Jan 2026 | View page | |
| Just Energy |
Amigo Energy
|
Bilingual EN / ES, fixed and prepaid | View page |
| Independents |
APG&E
|
Privately held, 6-state operator | View page |
|
Payless Power
|
Prepaid-only, no deposit, no credit check | View page | |
Think Energy
|
Energywell LLC since Nov 2022, fixed and green | View page | |
IGS Energy
|
Private family-owned, Dublin OH, 12 states | View page | |
|
Varsity Energy
|
Independent, PUCT REP #10271 | View page | |
|
Pennywise Power
|
Retired 2019; migrated to Discount Power | History page | |
|
Bulb Energy
|
Defunct in TX; alternatives on Power to Choose | Status page |
Note: Texas has more REPs than this list; we cover the families that drive most residential market share, plus a few notable independents.
"100 REPs" is functionally a 5-parent choice.
Industry analysts who follow the Texas retail market estimate that roughly 80% of residential customers in deregulated areas buy from a brand owned by one of the top five parent families.
That has two consequences. Wholesale strategy is set at the parent, not the brand ; if Vistra hedges into a colder winter, every Vistra brand sees the same forward curve. And complaint patterns track the back-office of the parent ; Reliant, Direct and Green Mountain share a billing platform inherited from Centrica.
The remaining 20% is split across smaller privately held parents and independents, where the most differentiated offers tend to be prepaid (Payless Power) or niche-green (IGS).
cover about 80% of customers
How TX REP families actually consolidated.
Most of the brand names you see on Power to Choose are 2010s acquisitions. The same five corporate buyers absorbed the original 2002-era retailers, kept the marketing brands, and pooled the operations.
Vistra rolled up Ambit, TriEagle and 4Change
After Vistra split from the bankrupt Energy Future Holdings in 2016, it added Ambit Energy in 2019, TriEagle Energy in 2019, and 4Change Energy in 2016. TXU remained the flagship retail brand.
NRG bought Direct Energy from Centrica
In January 2021, NRG closed a roughly $3.6 billion deal for Direct Energy. That pulled Green Mountain, Discount Power, First Choice Power and CPL Energy into the same family as Reliant, which NRG had owned since 2009. Stream Energy followed via a 2019 acquisition after Chapter 11.
Constellation absorbed Champion via Calpine
Constellation spun out of Exelon in February 2022. In January 2026, Constellation closed the Calpine acquisition, pulling Calpine's retail arm Champion Energy under the same umbrella as Constellation Energy.
Engie exited; Energywell bought Think
Engie Resources sold its US residential retail arm in late 2022. Energywell LLC took over Think Energy on 1 November 2022. Think is no longer an Engie brand, contrary to most older online guides.
Net effect: the brands stayed, the legal entities shifted. When you sign with TriEagle today, the contract is signed by a Vistra subsidiary, not by the 2010-era Engie operation older guides still describe.
How Texans quietly overpay when shopping REPs.
Five patterns we see when households compare Power to Choose listings without reading the fine print. Each is fixable in five minutes.
How to use Power to Choose without getting trapped.
Power to Choose is the official state plan list, run by the PUCT. It is free to use. It also defaults to a "rate at 1,000 kWh" sort that hides real costs at lower or higher usage. Reset the usage filter to your actual monthly kWh before sorting.
Always open the EFL for any plan you shortlist. Look for: post-credit price, base fee, bill-credit thresholds, contract term, ETF, and renewable percentage.
What to actually do before signing a TX REP plan.
Shop at YOUR kWh
On Power to Choose, set the usage filter to your real monthly kWh from a recent bill. The cheapest plan at 1,000 kWh is rarely cheapest at 600 or at 2,000.
Read every EFL footnote
Bill-credit thresholds, base fees and post-intro rates live in the footnotes, not the headline. If you skip these, the plan can cost double its advertised rate.
Compare total dollars per month
Convert the EFL into a single number: (rate × your kWh) + base fees + TDU pass-through − any credits. That is the real bill.
Check parent ownership
Use the directory above. If you are switching to escape a bad customer-service experience, switching to a sister brand in the same family rarely fixes it.
Watch for bill-credit cliffs
If a plan only pays the credit between 1,000 and 2,000 kWh, your shoulder months may quietly miss it. Compute the worst case before you sign.
File a PUCT complaint if needed
Billing dispute, slamming, deceptive marketing or disconnection issues all go to the PUCT. Free help on assistance programs ; the Texas version of LIHEAP is CEAP.
Common questions about Texas REPs.
A REP is the company you sign a plan with and pay each month. A TDU is the regulated wires company that physically delivers power to your meter. You pick your REP; you do not pick your TDU. Oncor, CenterPoint, AEP Central, AEP North and TNMP each cover a different part of Texas, and your address determines which one serves you.
Pick a new plan on Power to Choose or directly on the REP's site. Provide your ESI-ID (on your current bill) and an address. The switch usually happens within 1 to 3 business days on the next meter read; the lights never go off. Your old contract may charge an ETF if you switch before the term ends, but the last 14 days of the contract are typically penalty-free.
A fixed plan locks the supply price for a set term, commonly 6, 12 or 24 months. A variable plan changes monthly, often tracking wholesale ERCOT prices. Variable can be slightly cheaper in mild months and several times higher during scarcity events like winter storms or summer heat waves.
After the 2002 deregulation rush, the original retailers were consolidated through a series of mergers and bankruptcies. Vistra and NRG were the biggest buyers; Constellation and Energywell joined later. The brands survived because they had marketing recognition, but the wholesale desks and billing platforms were merged behind the scenes.
The Electricity Facts Label is a one-page disclosure every Texas REP must publish for each plan. It shows the average price at 500, 1,000 and 2,000 kWh, the base fee, the early termination fee, the renewable percentage and the contract term. It is the only honest apples-to-apples comparison document in Texas retail.
You can cancel within the first 3 business days of signing without penalty (rescission window). You can also cancel during the last 14 days of a fixed-term contract without an ETF. If you are moving out of the REP's service area, most contracts waive the ETF as well; check your Terms of Service.
More U.S. states with energy choice
Same playbook, different utility. Pick another deregulated state to compare utilities, suppliers and switching rules.
