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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The GMP Mission

Green Mountain Power (GMP) serves approximately 265,000 residential and business customers in Vermont and has a vision to be the best small company in America by empowering customers to save money and move to clean energy sources. GMP recognizes the role of electric utilities is changing and is focused on a new way of doing business to meet the needs of customers with integrated services, while continuing to generate clean, cost-effective and reliable power in Vermont. In 2014, Vote Solar named GMP a Solar Champion. Learn more about the people of GMP here.