Public utilities provide electric, gas, water or telephone service to customers in a specified area. Utilities have a duty to provide safe and adequate service on reasonable terms to anyone who lives within the service area on without discriminating between customers. Because most utilities operate in near monopolistic conditions, they can be heavily regulated by local, state, and federal authorities. Generally, the local and state agencies are called Public Service Commissions (PSC) or Public Utility Commissions (PUC). Municipal Utilities and Rural Electric Cooperatives may be unregulated though.
Errol is a town in Coos County, New Hampshire, United States. The population was 298 at the 2000 census. It is located north of the White Mountains along Route 16 at the intersection of Route 26. It has a municipal airport with a single, unpaved runway. Errol is part of the Berlin, NH–VT Micropolitan Statistical Area.