Regional entity

A regional entity (RE) in the North American power transmission grid is a regional organization representing all segments of the electric industry: electric utilities (investor-owned, cooperatives, state, regional, and municipal), federal agencies, independent power producers, power market operators, and end-users of the energy. North American Electric Reliability Corporation (NERC) delegates to REs authority to enforce reliability standards (which NERC has throughout the contiguous United States), collectively REs, together with NERC, are known as an "ERO Enterprise" (from the Electric Reliability Organization).