Power: from Atom to Application: A Six Segment FEATURE

The Science of Electricity         Power Generation        The Transformer        Interconnections         The Flow of Power         The Motion of Electricity        
Seven Bullets: The Vulnerability of the Grid         The State of the Electric Grid        

The Flow of Power

Flow of power infographic transformer diagram 0 The United State’s Electric Grid is considered the largest machine on earth. America’s electric grid is actually comprised of three smaller grids, called interconnections, that move electricity around the country. The Eastern Interconnection operates in states east of the Rocky Mountains, The Western Interconnection covers the Pacific Ocean to the Rocky Mountain states, and the smallest -- the Texas Interconnected system -- covers most of Texas. It consists of 450,000 miles of high-voltage transmission lines and 5.5 million miles of local distribution lines, al operated by some 3,200 utilities. - Source: the EIA

The North American Reliability Council (NERC) works with eight regional entities to improve the reliability of the bulk power system. The members of the regional entities come from all segments of the electric industry: investor-owned utilities; federal power agencies; rural electric cooperatives; state, municipal and provincial utilities; independent power producers; power marketers; and end-use customers. These entities account for virtually all the electricity supplied in the United States, Canada, and a portion of Baja California Norte, Mexico. - Source, NERC

NERC Regions
ReliabilityFirst (RFC)
Texas Reliability Entity (TRE)
Southwest Power Pool (SPP)
SERC Reliability Corporation (SERC)
Midwest Reliability Organization (MRO)
Northeast Power Coordinating Council (NPCC)
Florida Reliability Coordinating Council (FRCC)
Western Electricity Coordinating Council (WECC)