Energy Dictionary

power grid

An interconnected network of electric power transmission lines. The United States power grid, which covers most of the country as well as parts of Canada and Mexico, is made up of three major networks:

- Eastern Interconnect
- Western Interconnect
- Texas Interconnect

These networks include extra-high-voltage connections between individual utilities, which transfer electrical energy from one part of the network to another. The Interconnects distribute electricity in their respective areas. Each of these grids have a network of smaller units or power pools that enable better management of power distribution.

See also:

Interconnects, distribution