Is Green Mountain Energy a licensed PA electricity supplier?

Yes. Green Mountain Energy is licensed by the Pennsylvania Public Utility Commission under license number A-2011-2229050.

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

No. Your distribution utility (PECO, PPL, Duquesne Light, etc.) continues to deliver your electricity. Green Mountain Energy supplies the generation portion only.

How do I compare Green Mountain Energy to my utility's default rate?

Check your utility bill for the "Price to Compare" (PTC). Any supplier rate below that number saves you money on the supply portion.

PA PUC-licensed electricity supplier

Green Mountain Energy Pennsylvania plans & rates

From 13.60¢/kWh33 active PA plans• Rates verified Jun 15, 2026

Green Mountain Energy is a subsidiary of NRG and a PA PUC-licensed electricity supplier serving residential customers throughout Pennsylvania. 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 • PA PUC License: A-2011-2229050

Compare Green Mountain Energy PA rates

EIA-cited dataPA PUC-sourced102 PA suppliersUpdated June 2026Independent comparison

Green Mountain Energy in Pennsylvania

A-2011-2229050

PA PUC License

NRG

Parent company

Electric Generator Supplier

Service type

About Green Mountain Energy in Pennsylvania

Green Mountain Energy is a Pennsylvania PUC-licensed Electric Generator Supplier (EGS) 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

As an EGS, Green Mountain Energy competes with other licensed suppliers to provide the generation portion of your electricity bill. Your local utility (PECO, PPL, Duquesne Light, etc.) 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 Pennsylvania

Green Mountain Energy currently offers 33 residential electricity plans across PA utility territories. Rates range from 13.60¢ to 18.90¢/kWh.

Plan Name	Rate	Term	Type	Utility	Action
Products100% green	13.60¢/kWh	12 mo	Fixed		View
Products100% green	13.90¢/kWh	12 mo	Fixed		View
Products100% green	14.60¢/kWh	12 mo	Fixed		View
Pollution Free e-Plus 18 Choice100% green	15.00¢/kWh	18 mo	Fixed	CenterPoint Energy Houston Electric	View
Products100% green	15.00¢/kWh	6 mo	Fixed		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
Products100% green	15.50¢/kWh	12 mo	Fixed		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
Products100% green	16.40¢/kWh	12 mo	Fixed		View
Pollution Free e-Plus 24 Choice100% green	16.40¢/kWh	24 mo	Fixed	Oncor Electric Delivery	View
Products100% green	16.50¢/kWh	12 mo	Fixed		View
Products100% green	16.50¢/kWh	12 mo	Fixed		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 15, 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 (13.60¢/kWh). Find your typical kWh usage on your utility bill.

Light

$68/mo

500 kWh/month

Apartment, 1-2 people

Average

$136/mo

1000 kWh/month

Small home, 2-3 people

Medium

$204/mo

1500 kWh/month

Mid-size home, 3-4 people

High

$272/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.

Service area in Pennsylvania

Green Mountain Energy serves customers in the following PA utility territories:

Citizens' ElectricDuquesne LightMet‑EdPECOPenelecPenn PowerPikePPLUGI Utilities ‑ ElectricWellsboroWest Penn Power

This covers most of Pennsylvania's population. Enter your ZIP code to confirm service availability at your specific address.

How Green Mountain Energy compares to other PA suppliers

Pennsylvania has 100+ PUC-licensed residential suppliers. Here's how Green Mountain Energy fits in the landscape:

How to enroll with Green Mountain Energy in PA

Compare rates

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

Check your Price to Compare

Compare Green Mountain Energy's rate against your utility's default service rate. This is listed on your bill as "Price to Compare."

Enroll directly

Green Mountain Energy also enrolls customers through PA Power Switch and licensed brokers.

Frequently asked questions

Is Green Mountain Energy a licensed PA electricity supplier?: Yes. Green Mountain Energy is licensed by the Pennsylvania Public Utility Commission under license number A-2011-2229050.
Which PA utilities can I use Green Mountain Energy with?: Green Mountain Energy serves customers in Citizens' Electric, Duquesne Light, Met‑Ed, PECO, Penelec, Penn Power, Pike, PPL, UGI Utilities ‑ Electric, Wellsboro, West Penn Power service 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.
How do I compare Green Mountain Energy to my utility's default rate?: Check your utility bill for the "Price to Compare" (PTC). Any supplier rate below that number saves you money on the supply portion of your bill.
Does Green Mountain Energy offer renewable energy plans in PA?: Most major PA suppliers offer some renewable energy plans. Visit greenmountainenergy.com for current options and pricing.