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Green Mountain Energy Company was founded in 1997 with the mission to change the way power is made. As the longest serving renewable energy retailer in the country, Green Mountain is a green power pioneer.


Our Grading of Green Mountain Energy

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Green Mountain Energy Plan Summary

Green Mountain Energy does not currently have any plans available on MA Energy Ratings.

We recommend plans from Constellation and Verde Energy instead.

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Customer Reviews of Green Mountain Energy

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Most Recent Green Mountain Energy Reviews  


Love Green Mountain Energy
I've been with them for over 5 yrs. no gimmicks. not the cheapest rate but best bargain overall when you have stability of fixed rate and no unexpected fine prints. Truli from Richardson TX

Wonderful company
I have had Green Mountain for years no complaints from me. Great service. Robin Smith from Fort Worth TX

Big Fan of GME
As promised, the rate on my bill only increased slightly. I feel better paying my bill each month knowing it is going towards cleaner sources than before. Five Stars from Syracuse NY


4-5 Star Reviews: 60 (14%)



Best Company in MA

Ive had many problems with energy providers before. This company hands down has the best price and customer service.

Vivian Aliati from Boston, Massachusetts
April 1st, 2019

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3-4 Star Reviews: 25 (6%)



DISCONNECTED SERVICE, THEIR MISTAKE!!

I called the morning of Jun. 1,2020 to ask the why my electricity is disconnected. I clearly called them on 2 occasions to cancel my disconnection notice since I had not yet moved into my house. They told me after I waited over an hour being transferred, that they will connect me in 1 or 2 hours top. It is not 5:15 p.m I have NO ELECTRICITY & they are not answering. I am so humiliated after paying them $218.00 balance that was suppose to be made in payments & they still haven't taken the time to connect my service. It is outrageous. I have been a loyal customer for over 5 or 6 years.

COLD HEARTED COMPANY from Texas
June 1st, 2020

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2-3 Star Reviews: 35 (8%)



Beware new scheme from the company (probably others)

When my last contract ended, they did not send any notice of my rates going up. This time, they sent me a notice to renew by a date last month. So, I chose to renew with another company this month, but they are informing me of a $200 fine for renewing a few months early. I was a complacent customer for 20 years, but never again.

Marc S. from Texas
January 15th, 2021

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1-2 Star Reviews: 237 (56%)