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Transmission Reliability Margin (TRM)

Effective: April 1, 2011
Version: Original

This is VTransco's Capacity Benefit Margin Implementation Document (“CBMID”)

The Transmission Reliability Margin (TRM) is the portion of the TTC that cannot be used for the reservation of firm transmission service because of uncertainties in system operation conditions and the need for operating flexibility to ensure reliable system operation as system conditions change. It is used only for external interfaces under the New England market design. Since VTransco provides transmission service over its non-PTF facilities that are connected only to the internal New England system, VTransco does not reserve TRM for these paths, and the TRM is presently set to zero. 

Vermont Transco
  • Home
  • Interconnection
    • How to Apply for Service
    • Facility Connection Requirements
    • Transmission Studies
    • LSS Agreements
  • Rates, Tariffs, & Business Practices
    • Business Practices
    • Access to Critical Energy Infrastructure Information
    • Financial Information
  • Regulatory Requirements
    • FERC Order 890
    • Standards of Conduct
    • ATC & TTC
  • Contact

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