For many, electric vehicles are an impractical choice because their daily mileage generally exceeds the cars maximum range and there is no certainty of finding a car charging station. But that could change in the future with 48 interstate highways designated as electric vehicle charging corridors. Read about it here.
New Hampshire has about 60 charging stations. Most are in the Concord and Manchester area, with clumps in Portsmouth and Nashua and a handful in Keene and Lebanon, along with many more across the state lines in Vermont and Massachusetts, with the rest scattered around the state. See a map of charging stations here.