Who is the Biggest Electricity Provider in Texas?

The largest Retail Electricity Provider (REP) brand in Texas is Reliant Energy, with 1,545,510 residential customers. The second largest retail electricity provider brand in Texas is TXU Energy, with 1,442,516 residential customers.

Five parent corporations (NRG Energy, Vistra Corp., Just Energy Group, NextEra Energy Inc. and Constellation Energy Corporation) control 90% of the Texas residential electricity customer base.

Data Source: All retail electricity providers in Texas must file their customer counts by type of customer with the Energy Information Administration. We’ve extracted and analyzed data from the EIA 2025 Annual Electric Power Industry Report released October 7, 2026, and appended their parent corporation.

Who is the Largest Electricity Provider in Texas – Parent Company

Electricity in Texas is deregulated, and over 85% of Texans have electricity choice. But consolidation in the industry has resulted in 69.6% of Texas residential customers being served under the same two parent company umbrellas:

• NRG Energy is the largest parent company for Texas residential electricity. They serve 2,737,610 residential customers, which is 38.8% of all residential customers in Texas.
• Vistra Corp. is the second largest parent company for Texas residential electricity. They serve 2,171,951 residential customers, which is 30.8% of all residential customers in Texas.

Three other parent companies also serve a large number of residential consumers, with Just Energy Group (8.9% of residential customers), NextEra Energy (6.3%) and Constellation Energy Corporation (5.2%) rounding out our top 5.

Combined, these five parent corporations serve 90% of all residential customers in Texas.

Here are the REP brands owned by these five parent corporations.

Who is the Biggest Electricity Company in Texas – By Consumer Brand

The largest REP brand in Texas is Reliant Energy, with 1,545,510 residential customers. The second largest retail electricity provider brand in Texas is TXU Energy, with 1,442,516 residential customers.

The table below shows customer count by brand.

Brand Name	Registered Retail Electricity Provider (REP)	Residential Customers in Texas	Market Share - Texas Residential	Parent Company
Reliant Energy	Reliant Energy Retail Services	1,545,510	22%	NRG
TXU Energy	TXU Energy Retail Co, LLC	1,442,516	20%	Vistra
Just Energy	Just Energy	437,966	6%	Just Energy
Cirro Energy Discount Power	US Retailers, LLC	416,504	6%	NRG
Ambit Energy	Ambit Energy Holdings, LLC	364,649	5%	Vistra
Gexa Energy	Gexa Energy, LP	310,726	4%	NextEra
Green Mountain Energy	Green Mountain Energy Company	273,660	4%	NRG
Direct Energy	Direct Energy Services	259,458	4%	NRG
4Change Express Energy Veteran Energy	Value Based Brands LLC	245,378	3%	Vistra
Champion Energy	Champion Energy Services	218,102	3%	Constellation
Amigo Energy	Amigo Energy	152,002	2%	Just Energy
Stream	Stream SPE, LTD	142,525	2%	NRG
Frontier Utilities	Retail Energy Solutions, LLC	134,980	2%	NextEra
Constellation	Constellation NewEnergy, Inc	127,616	2%	Constellation
TriEagle Energy	TriEagle Energy, L.P.	119,408	2%	Vistra
Energy Texas Rhythm Energy	Rhythm Ops LLC (Rhythm, Energy Texas)	112,931	2%	Rhythm Holdings LP
APG&E	AP Holdings LLC	99,078	1.4%	Private
Ironhorse Power	Ironhorse Power Services LLC	62,114	0.9%	Private
BKV Energy	BKV-BPP Retail, LLC	58,419	0.8%	BKV Corporation
Atlantex Energy	Atlantic Energy LLC	58,376	0.8%	Atlantic Energy Group LLC
Xoom Energy	XOOM Energy Texas, LLC	53,755	0.8%	NRG
Payless Power	Young Energy, LLC	51,776	0.7%	Private
Chariot Energy	Chariot Energy	42,638	0.6%	Hanwha Group
Tara Energy	Tara Energy, LLC	36,822	0.5%	Just Energy
Budget Power	Capital Energy PA LLC	31,337	0.4%	Private
SoFed Power	Southern Federal Power, LLC	24,764	0.4%	Genie Energy LTD
Spark Energy	Spark Energy, LP	21,051	0.3%	Via Renewables, Inc.
GoodCharlie Energy	Good Charlie & Co., LLC	19,603	0.3%	Constellation
Abundance Energy	Abundance Energy, LLC	18,346	0.3%	Quext Energy, LLC
Octopus Energy	Octopus Energy LLC	16,026	0.2%	Octopus Group
Acacia Energy Now Power Snap Energy Vital Power	Brooklet Energy Distribution	15,227	0.2%	Private
Pogo Energy	Pogo Energy LLC	11,433	0.2%	Private
Tesla Energy	Tesla Energy Ventures	11,432	0.2%	Tesla Inc.
	All Other REPs	49,198	0.7%
Customers reported under Mothership and Summer	Other Atlantic Energy	18,960	0.3%	Atlantic Energy acquisitons
Customers reported under Pulse Power, MP2, OhmConnect	Other NRG Energy	46,198	0.7%	NRG Acquisitions
Customers reported under Hudson Energy	Other Just Energy	4,013	0.1%	Just Energy legacy customers
	TOTAL	7,054,497

How to Compare Electricity Rates and Plans in Texas

Consumers shopping for an electricity provider are often looking for the cheapest electricity plan or a certain type of plan. Texas electricity pricing is built around usage tiers of 500, 1000, and 2000 kWh per month. The rate you see advertised is almost always the best-case number. The rate you actually pay depends on how much you use.

That’s why ElectricityPlans’ BillSmart™ Tools show your true cost, not just the advertised price, so you can choose a plan you’ll trust when the bill arrives.

• BillSmart Low Bill Finder finds your lowest-cost plan based on your actual usage.
• BillSmart Calculator shows your estimated bill at any usage level, so you can see what you’ll actually pay before you commit.
• BillSmart Plan Score tells you how predictable your bill will be on a 1-5 scale.
• CostCurve™ shows how your rate and bill change at different usage levels, in graph form.

ElectricityPlans features providers that meet our editorial standards including brand name, management personnel, regulatory reputation, parent company and uniqueness of offer. We receive compensation when you enroll with your selected provider through our website. However, REPs can not pay for preferential placement on our site.

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Sources: Annual Electric Power Industry Report EIA-861 2025, released October 7, 2026.