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Exhibit 27-8

U.S. Electric Grids

There are three interconnected physical grids of transmission lines that serve North America: the western grid, the eastern grid and the ERCOT grid.

For more information on this exhibit, please contact the Comptroller’s Data Services Division at 512-463-4900 or at P.O. Box 13528, Austin, Texas 78711-3528.

Source: U.S. Energy Information Administration.

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Required Plug-ins