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.
Nassau is an unincorporated community in eastern Sussex County, Delaware, United States. It lies just off Delaware Route 1 northeast of the town of Georgetown, the county seat of Sussex County. Its elevation is 26 feet (8 m), and it is located at 38°45′7″N 75°11′16″W / 38.75194°N 75.18778°W / 38.75194; -75.18778 (38.7520565, -75.1876854). Although it is unincorporated, it has a post office, with the ZIP code of 19969. Nassau is part of the Seaford, Delaware Micropolitan Statistical Area.