The U.S. Census reports Maine’s population at about 1.3 million, and a “size of household” of about three people. This would imply a few more than 400,000 households, yet the Public Utilities Commission reports that nearly 700,000 “residential” electric meters are in place in Maine. Can this inconsistency be explained by seasonal households? In any event, the PUC shows 4.5 billion annual kilowatt-hours of electric energy use in the residential sector, and about 12 billion kilowatt-hours annual total. Households use about one-third of the total electricity used in Maine.