Main Office

Green Mountain Power 163 Acorn Lane Colchester, VT 05446 1-888-835-4672

Office hours Mon to Fri, 8 a.m. – 5 p.m.
We are closed on major holidays, the day after Thanksgiving and Christmas Eve

Email Us

If you are contacting us about a current account, please include the address where service is provided, the account number and the name on the account. This will help us respond faster.

Contact Us

* Required Fields

Convenience means an easy and obvious place to log in to your account.

Click on the “Log in” button to your right to access all of your account information. To register your account, you will need a username, password, email address, and account number and password. To log in, you just need your username and password.

Green Mountain Power

print page A A A

About Hydro Power

Waterfalls aren’t just pretty. They can make electricity, too.

GMP Hydro Power is the largest fleet of hydroelectric generating stations in New England! It’s also our cheapest energy producer, creating renewable energy – without any emissions – at a fraction of the cost of most other generation sources.

Our roots in the hydroelectric world go back over 100 years. Chittenden Reservoir, one of our largest generation sources, was created through painstaking construction starting near the beginning of the 20th century. It was commissioned back in 1910, and it’s been a mainstay of Vermont’s generation stable ever since.

Our fleet of 32 hydro stations spans Vermont. From small mill sites to grand examples of Vermonters’ ingenuity a century ago, these stations quietly continue to help power Vermont affordably and reliably.  Many of our sites also provide fun public access facilities, like picnic areas and boat ramps. To learn more, check out the entire listing of GMP Hydro Power Recreation Areas.