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

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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.

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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

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All you need to know about how we determine our rates.

GMP works hard to provide value for customers.  Our customers have seen three bill decreases in the last four years.  Based on the latest figures available, our average rates are among the lowest of all major utilities in New England. It is even more impressive when you consider the fact that GMP has one of the nation’s cleanest power supplies. 

For a comparison of rates of New England’s major utilities, click here.

For definitions of the terms on your bill, click here.

Click here to see your rates.