Interregional Transmission Coordination

The requirement under Attachment K and Order 1000 for each Transmission Provider to coordinate with public utility transmission providers in neighboring planning regions to identify interregional transmission facilities that could address needs more efficiently or cost-effectively than separate regional solutions. Coordination obligations include: sharing regional plan results annually, formal procedures to jointly evaluate facilities spanning two regions, annual data exchanges, and a public website for communication. Cost allocation for approved interregional facilities must satisfy Order 1000's six interregional cost allocation principles.

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