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Green Mountain Energy Texas


Green Mountain Energy sells renewable electricity to residential and business customers in Texas. Founded in Vermont in 1997, the company is based in Austin, Texas and provides service in Texas, New York, Oregon, Illinois, Massachusetts, New Jersey, Maryland, and Pennsylvania.

Our Take On Green Mountain Energy

Based on our investigation into Green Mountain Energy's rates, contract options, and customer reviews, we rate the company out of five stars.

Compare reviews with other suppliers.

What we like about Green Mountain Energy

  • Quite a wide range of contract options
  • Review feature on their website that allows current customers to leave ratings and reviews of their contracts
  • A company that has been in operation for a long time

What made Green Mountain Energy lose points

  • Fairly high number of customer complaints regarding billing/autopayment 

Available Plans

Plan Type Contract Length Features Early Termination Fee Our Thoughts
Fixed Rate Plans 9, 12, 24 months
  • 100% renewable electricity only
  • Additional features depending on the plan: Nest thermostat or smart sprinkler system included
$100 - $200, depending on the contract 

Recommended: 24 or 36 month plans, in order to lock in long-term fixed rates.

Variable Rates Month-to-month $100 gift card offered None In general we do not recommend variable plans, though customers interesting in supporting solar power capacity in Texas may want to check out Green Mountain Energy's SolarSPARC 10% option

Explanation of Rate Options

Fixed Rate Plans

A fixed rate does not change over the whole period of the contract, meaning that for the length of the contract (12, 18, or 24 months) the price you pay for electricity in ¢/kWh does not change. In general we recommend choosing fixed rate contracts of at least 12 months or more. As electricity prices per kilowatt-hour fluctuate throughout the year, and you may actually lose money by not being able to take advantage of prices when they are low. However, because electricity prices tend to increase over time, locking in fixed rates for longer periods may prove advantageous and deliver savings. You can find more information about fixed rates in our guide.

Some customers have reported savings on fixed rate electricity plans from Green Mountain Energy. Fixed rate plans can often be a good deal if you are able to lock in a good rate at the right time of year.

Fixed vs Variable Rates Options

A fixed rate does not change over the whole period of the contract, meaning that for the length of the contract (3, 6, 12, or 24 months) the price you pay for electricity in ¢/kWh does not change. A variable rate, on the other hand, can changed from month to month. As a general rule of thumb we recommend choosing fixed rate plans over variable rates. While locking in a fixed rate means that you may be charged cancellation fees should you change your mind during the contract, more customers report negative experiences with month-to-month (variable) prices than they do with fixed rates. You can find more information about fixed rates in our guide.

Base Charges/Minimum Usage Fees

Base charges are flat charges that are charged every month regardless of the amount of power consumed. Minimum usage fees kick in when customer consumption is below a certain minimum monthly threshold. Green Mountain Energy does not charge minimum usage fees or base charges.

Green Energy Plans

Green Mountain Energy offers 100% renewable energy plans. All of Green Mountain Energy's plans are based on wind power, with one variable rate that provides 10% solar and 90% wind power.

Customer Reviews

We give Green Mountain Energy a star-rating rating.

Green Mountain Energy has a A+ rating from the Better Business Bureau, which is based (among other factors) on the number of complaints that have been made against it relative to its size and its responsiveness to consumer complaints. It also earned a top scoring for customer satisfaction from the J.D. Power 2014 Retail Electric Provider Residential Customer Satisfaction Study, which surveyed customer satisfaction among Texas residents. However, the PUC scores the company "average", based on the number of complaints filed over the last six months. Most complaints filed with the PUC are related to billing, slamming, and problems with service provisions.

Many of the negative reviews of Green Mountain Energy appear to be from customers on variable plans, who didn't appreciate the unpredictability of having rates change each month. For this reason, we recommend customers interested in purchasing green power from Green Mountain Energy choose a fixed rate

For more information about the customer experience with Green Mountain Energy, please visit our Green Mountain Energy customer reviews page.

Company Background

Green Mountain Energy was founded in Vermont in 1997. The company began selling electricity in Texas in 2002, making it the first Texas REP to sell only 100% renewable electricity. Since then, the company has expanded to sell electricity and/or gas in eight states throughout the United States.

Contact Green Mountain Energy


You can contact Green Mountain Energy online by filling in an online request form. Their email for Texas customer service is [email protected]

Customer Care Phone Numbers

You can reach Green Mountain Energy toll-free at 1-866-785-4668, Monday through Friday from 7:00 a.m. to 10:00 p.m., and on Saturdays from 8:00 a.m. - 5:00 p.m. Customer service is closed on Sundays and holidays.

Mailing Address:

Green Mountain Energy
P.O. Box 699
Houston, Texas 77001-0699

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