Balancing Authority Area
A balancing authority (BA) is an entity in the US electric system (as well as in parts of Canada and Mexico) that is responsible for grid balancing: resource planning and unit commitment ahead of time, maintenance of the load-interchange-generation balance within a balancing authority area (also known as a control area) and support for real-time load-frequency control.Glossary of Terms Used in Reliability Standards
North American Electric Reliability Corporation, p. 2. February 8, 2005. The balancing authorities are connected by metered high-voltage tie lines and grouped into
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North American Power Transmission Grid
The electrical power grid that powers Northern America is not a single grid, but is instead divided into multiple wide area synchronous grids. The Eastern Interconnection and the Western Interconnection are the largest. Three other regions include the Texas Interconnection, the Quebec Interconnection, and the Alaska Interconnection. Each region delivers power at a nominal frequency. The regions are not usually directly connected or synchronized to each other, but there exist some HVDC interconnectors. The Eastern and Western grids are connected with 1.32 GW. History In the United States in the 1920s, utilities formed joint operations to share peak load coverage and backup power. In 1934, with the passage of the Public Utility Holding Company Act (United States), electric utilities were recognized as public goods of importance and were given outlined restrictions and regulatory oversight of their operations. From 1967, the East and West interconnections were directly connected ...
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