The long and short of it is that Long Island Power Authority (LIPA) owns the electric transmission and distribution system on Long Island that delivers power to more than 1.1 million retail customers. The company's network, which is managed and operated by the National Grid USA consists of nearly 14,000 miles of overhead and underground lines. LIPA offers energy conservation products and services, as well as incentive programs to encourage customers to purchase energy from "green" (environmentally friendly) power generation sources. LIPA is a municipally owned, not-for-profit utility company.