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The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power on the Texas Interconnection that supplies power to 26 million Texas customers – representing 90 percent of the state's electric load. [3] ERCOT is the first independent system operator (ISO) in the United States [4] and one of nine ISOs in North America. [5]
The Texas Interconnection covers most of the state of Texas. Interconnections can be tied to each other via high-voltage direct current power transmission lines ( DC ties ), or with variable-frequency transformers (VFTs), which permit a controlled flow of energy while also functionally isolating the independent AC frequencies of each side.
In short, an ISO operates a region's electricity grid, administers the region's wholesale electricity markets, and provides reliability planning for the region's bulk electricity system. Today's RTOs do the same thing with an added component of greater responsibility for the transmission network, as established by the FERC.
The Electric Reliability Council of Texas, Inc. (ERCOT) is an American organization that operates Texas's electrical grid, the Texas Interconnection, [3] [4] which supplies power to more than 25 million Texas customers and represents 90 percent of the state's electric load. [5] ERCOT is the first independent system operator (ISO) in the United ...
The Western Interconnection is a wide area synchronous grid and one of the two major alternating current (AC) power grids in the North American power transmission grid. The other major wide area synchronous grid is the Eastern Interconnection .
A wide area synchronous grid (also called an "interconnection" in North America) is a three-phase electric power grid that has regional scale or greater that operates at a synchronized utility frequency and is electrically tied together during normal system conditions.
This file requires updating because: Southwest Power Pool extends from Canada to Texas In doing so, you could add a timestamp to the file. Please notify the uploader with {{ subst : update-note |1=File:NERC-map-en.svg|2=Southwest Power Pool extends from Canada to Texas}} ~~~~
Besides this there are two minor power grids in the U.S., the Alaska Interconnection and the Texas Interconnection. The Eastern, Western and Texas Interconnections are tied together at various points with DC interconnects allowing electrical power to be transmitted throughout the contiguous U.S., parts of Canada and parts of Mexico.