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

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Answers to some of the questions you might ask about GMP Plug’N Go.

What is GMP Plug‘N Go?

It’s our effort to help you transition to a cleaner, low-impact mode of transportation. The program includes an off-peak rate and the option to charge the batteries of a hybrid-electric vehicle from the power grid, ideally at night. It also means using electricity to replace some of your regular gasoline use. Since a Plug-in Hybrid Electric Vehicle (PHEV) can run on gasoline if necessary, your travel is not limited by battery storage.

Why is GMP offering Plug‘N Go?

We have a long-term vision to help plug-in car owners make the electric system, as well as driving, more efficient. In the near term, we want to help customers substitute electricity for gasoline to reduce driving costs and pollution. In the long term, with proper wiring, a PHEV could also serve as a generator at your home during power failures.

What's the difference between a normal hybrid electric vehicle (HEV) and a plug-in hybrid?

A plug-in hybrid has all the benefits of a regular hybrid car, with more versatility! A PHEV has an additional battery pack and a cord to connect to a standard electric outlet. Those changes allow the owner to charge the car when it is normally sitting idle – like at home at night.

How does an all-electric vehicle (EV) differ from a PHEV?

An EV has no on-board gasoline engine. It has limited range depending on the battery. But most day-to-day trips are 40 miles or less, so the EV’s limits may not affect most trips. PHEVs, by contrast, can always rely on their gas engine if they use up all their electricity supplies.

How could GMP Plug‘N Go save me money and help the environment?

Whenever a car uses electricity, it foregoes gasoline. Less gasoline means lower costs and fewer emissions. Electricity at off-peak rates provides transportation for the equivalent of about 75 cents per gallon of gasoline, and even peak electricity can move you for the equivalent of about $1 to $2 per gallon of gasoline.

What makes a plug-in hybrid cleaner than a regular gasoline car?

An electric motor is much more efficient than a gasoline engine. This is especially true for stop-and-start driving. In addition, the CO2 content of fuels used to make electricity is significantly lower than gasoline. Our power supply produces very low emissions. It is also more economic to control emissions at large power plants than at each tailpipe, and future power supplies may be even cleaner and more efficient than what we have today.

Are you sure plug-in hybrids won’t stress the electrical system?

Ideally, we’d like drivers to charge their cars at night, when the electric system capacity is not strained and when energy prices are lower. A national study estimates that more than 80 percent of the country’s light vehicles could be charged at night without any additional wires or power plants.

Will I need a different meter installed to plug in my car?

No, but we encourage you to select a time-of-use rate, which would provide you lower electric rates at night, when most customers are more apt to plug in and recharge a car at home.