Is Green Mountain Energy a licensed Texas electricity supplier?

Yes. Green Mountain Energy is licensed by the Public Utility Commission of Texas under license number N/A.

Which Texas utilities can I use Green Mountain Energy with?

Green Mountain Energy serves customers across Texas's major utility territories.

Will my utility change if I sign up with Green Mountain Energy?

No. Your distribution utility continues to deliver your electricity. Green Mountain Energy supplies the generation portion only.

Are Green Mountain Energy's rates competitive in Texas?

Green Mountain Energy is a reputable, established provider but typically not the cheapest. Its lowest fixed rate is about 15.00¢/kWh versus roughly 11.70¢/kWh for the cheapest Texas fixed plan.

PUCT-licensed electricity supplier

Green Mountain Energy plans & rates in Texas

From 15.00¢/kWh fixed25 active TX plans• Rates verified Jun 12, 2026

Green Mountain Energy is a subsidiary of NRG and a PUCT-licensed electricity supplier serving residential customers throughout Texas. This is an independent comparison, not Green Mountain Energy's official site.

Affiliate disclosure: We may earn a commission if you sign up through our links. Learn more

Reviewed by John Spencer

Updated June 2026 • PUCT License: N/A

See Green Mountain Energy's plans at your address

EIA-cited dataPUCT-sourced150 TX suppliersUpdated June 2026Independent comparison

Our honest take

Is Green Mountain Energy a good choice in Texas?

Green Mountain Energy is one of Texas's largest and most established retail electricity providers (part of NRG), with reliable service and a broad range of plans across every major TX utility territory. The honest catch: it's usually not the cheapest.

Green Mountain Energy's cheapest clean fixed rate is 15.00¢/kWh, while the lowest fixed rate available in the same Texas territories runs about 11.70¢/kWh. You're paying a premium for the brand — fine if service and name recognition matter most to you, but you can often find a lower rate.

Already a Green Mountain Energy customer looking for login, bill pay, or support? Visit greenmountainenergy.com. This page is an independent comparison for shoppers.

Volt Butler verdict

Proceed with caution

3.6/5

Cheapest fixed: 15.00¢/kWh
Active TX plans: 25
Bill-credit plans: None
Parent: NRG

Green Mountain Energypros & cons

Pros

Every plan is 100% renewable energy
Pioneer of green retail electricity — the most established green brand
Clean fixed plans with no bill-credit gimmicks
NRG-backed reliability

Cons

A clear price premium — ~15¢ vs ~12.3-12.4¢ for Gexa/Rhythm's 100% green plans
You pay for the brand and legacy, not a cheaper kilowatt-hour
“Green” is REC-based — the same as the cheaper alternatives

Green Mountain Energy reviews: what people say

Our editorial read of the consensus — not customer quotes or a rating we can't source.

Green Mountain is the original name in clean energy — it pioneered 100% renewable retail electricity in the late 1990s, and every plan is still 100% green. The catch is price: Green Mountain runs a clear premium, with rates well above newer all-green competitors like Gexa and Rhythm that make the same 100% renewable claim for several cents less per kWh. You're paying for the pedigree and the brand. Worth it if that legacy matters to you; if it's purely about cheap green power, you can do better.

Consistently praised for

100% renewable on every plan
The original, most-established green brand
Clean fixed plans, no bill-credit gimmicks

Common complaints

Priced at a clear premium vs other all-green providers
The same REC-based green for more money

What is Green Mountain Energy best for?

Where Green Mountain Energy genuinely stands out — based on the plans it actually offers.

Committed green energy from the original green brand

If buying clean power from the company that pioneered it matters to you, Green Mountain delivers 100% renewable on every plan — at a premium worth weighing against cheaper all-green options.

Green Mountain Energy in Texas

N/A

PUCT License

NRG

Parent company

Retail Electric Provider (REP)

Service type

About Green Mountain Energy in Texas

Green Mountain Energy is a Public Utility Commission of Texas-licensed Retail Electric Provider (REP) serving residential and commercial customers throughout the state. Founded 1997 in Austin, Texas, the company has grown to serve 500,000+ across 13 states.

First company in the US to offer 100% renewable electricity. Acquired by NRG Energy in 2010. All plans are 100% pollution-free.

Green Mountain Energy at a glance

Founded: 1997 in Austin, Texas
Parent company: NRG
Current HQ: Houston, Texas
Customers: 500,000+ across 13 states
Company type: Retail Electric Provider (REP)
Website: greenmountainenergy.com

As a competitive retail supplier, Green Mountain Energy competes with other licensed suppliers to provide the generation portion of your electricity bill. Your local utility continues to handle delivery, maintenance, and outage response regardless of which supplier you choose.

Visit greenmountainenergy.com to learn more about their current plans and offers.

Green Mountain Energy electricity plans in Texas

Green Mountain Energy currently offers 25 residential electricity plans across TX utility territories. Rates range from 15.00¢ to 18.90¢/kWh.

Plan Name	Rate	Term	Type	Utility	Action
Pollution Free e-Plus 18 Choice100% green	15.00¢/kWh	18 mo	Fixed	CenterPoint Energy Houston Electric	View
Pollution Free e-Plus 12 Choice100% green	15.00¢/kWh	12 mo	Fixed	CenterPoint Energy Houston Electric	View
Pollution Free e-Plus 24 Choice100% green	15.30¢/kWh	24 mo	Fixed	CenterPoint Energy Houston Electric	View
Pollution Free e-Plus 12 Choice100% green	15.40¢/kWh	12 mo	Fixed	AEP Texas Central	View
Pollution Free e-Plus 18 Choice100% green	15.40¢/kWh	18 mo	Fixed	AEP Texas Central	View
Pollution Free e-Plus 36 Choice100% green	15.60¢/kWh	36 mo	Fixed	CenterPoint Energy Houston Electric	View
Pollution Free e-Plus 24 Choice100% green	15.80¢/kWh	24 mo	Fixed	AEP Texas Central	View
Pollution Free e-Plus 18 Choice100% green	15.90¢/kWh	18 mo	Fixed	Oncor Electric Delivery	View
Pollution Free e-Plus 12 Choice100% green	15.90¢/kWh	12 mo	Fixed	Oncor Electric Delivery	View
Pollution Free e-Plus 36 Choice100% green	16.20¢/kWh	36 mo	Fixed	AEP Texas Central	View
Pollution Free e-Plus 24 Choice100% green	16.40¢/kWh	24 mo	Fixed	Oncor Electric Delivery	View
Pollution Free e-Plus 36 Choice100% green	16.70¢/kWh	36 mo	Fixed	Oncor Electric Delivery	View
Pollution Free e-Plus 18 Choice100% green	16.90¢/kWh	18 mo	Fixed	AEP Texas North	View
Pollution Free e-Plus 18 Choice100% green	16.90¢/kWh	18 mo	Fixed	Texas-New Mexico Power	View
Pollution Free e-Plus 12 Choice100% green	17.10¢/kWh	12 mo	Fixed	Texas-New Mexico Power	View
Pollution Free e-Plus 12 Choice100% green	17.40¢/kWh	12 mo	Fixed	AEP Texas North	View
Pollution Free e-Plus 24 Choice100% green	17.50¢/kWh	24 mo	Fixed	Texas-New Mexico Power	View
Pollution Free e-Plus 36 Choice100% green	17.70¢/kWh	36 mo	Fixed	Texas-New Mexico Power	View
Pollution Free e-Plus 24 Choice100% green	17.80¢/kWh	24 mo	Fixed	AEP Texas North	View
Pollution Free e-Plus 18 Choice100% green	17.90¢/kWh	18 mo	Fixed	Lubbock Power & Light	View
Pollution Free e-Plus 12 Choice100% green	17.90¢/kWh	12 mo	Fixed	Lubbock Power & Light	View
Pollution Free e-Plus Choice100% green	18.10¢/kWh	1 mo	Variable	CenterPoint Energy Houston Electric	View
Pollution Free e-Plus 36 Choice100% green	18.20¢/kWh	36 mo	Fixed	AEP Texas North	View
Pollution Free e-Plus Choice100% green	18.40¢/kWh	1 mo	Variable	Oncor Electric Delivery	View
Pollution Free e-Plus Choice100% green	18.90¢/kWh	1 mo	Fixed	Lubbock Power & Light	View

Note: Some fixed-rate plans include early termination fees. Check plan details before enrolling.

Rates last verified Jun 12, 2026. Actual rates may vary by utility territory. Enter your ZIP code for personalized rates.

Green Mountain Energy estimated bill by usage

Estimated monthly supply cost using Green Mountain Energy's lowest available rate (15.00¢/kWh). Find your typical kWh usage on your utility bill.

Light

$75/mo

500 kWh/month

Apartment, 1-2 people

Average

$150/mo

1000 kWh/month

Small home, 2-3 people

Medium

$225/mo

1500 kWh/month

Mid-size home, 3-4 people

High

$300/mo

2000 kWh/month

Large home, 4+ people

Supply cost only. Your total bill also includes delivery charges from your utility, which vary by territory.

How Green Mountain Energy compares to other TX suppliers

Texas has 150+ PUCT-licensed residential suppliers. Here's how Green Mountain Energy fits in the landscape:

How to enroll with Green Mountain Energy in TX

Compare rates

Visit greenmountainenergy.com or use our ZIP submit to see what plans are currently offered for your area.

Compare the rate

Texas has no utility default rate — you pick a retail provider from day one. Compare Green Mountain Energy's rate against the cheapest plan in your territory before you enroll.

Enroll directly

Green Mountain Energy also enrolls customers through Power to Choose and licensed brokers.

Frequently asked questions

Is Green Mountain Energy a licensed TX electricity supplier?: Yes. Green Mountain Energy is licensed by the Public Utility Commission of Texas under license number N/A.
Which TX utilities can I use Green Mountain Energy with?: Green Mountain Energy serves customers across Texas's major utility territories.
Will my utility change if I sign up with Green Mountain Energy?: No. Your distribution utility continues to deliver your electricity. Green Mountain Energy supplies the generation portion only. You'll see both charges on your utility bill.
Is Green Mountain Energy a good electricity company?: Green Mountain Energy is a large, established, reputable TXprovider with reliable service — our verdict is "Proceed with caution." The main trade-off is price: it's usually not the cheapest, so compare its rate against lower-cost plans before signing up.
Are Green Mountain Energy's rates competitive?: Not the lowest. Green Mountain Energy's cheapest fixed rate is about 15.00¢/kWh, versus roughly 11.70¢/kWh for the cheapest Texas fixed plan. You pay a premium for the brand.
How do I switch to Green Mountain Energy?: Enter your ZIP to see Green Mountain Energy's current plans for your address, pick one, and enroll. Your TXdelivery utility stays the same and your power isn't interrupted — only the supplier on your bill changes, typically by your next meter read.