Texas Interconnection
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The Texas Interconnection is one of the three minor alternating current (AC) power grids in North America. The other two minor interconnections are the Québec Interconnection and the Alaska Interconnection. The two major interconnections are the Eastern Interconnection and the Western Interconnection.
All of the electric utilities in the Texas Interconnection are electrically tied together during normal system conditions and operate at a synchronized frequency operating at an average of 60Hz. The Texas Interconnection covers most of the State of Texas.
Interconnections can be tied to each other via high voltage direct current (DC) power transmission lines which permit a controlled flow of energy while also electrically separating the synchronized AC systems of each side. The Texas Interconnection is tied to the Eastern Interconnection at two points, and also has ties to some systems in Mexico.
