Transmission Reliability Margin definition

Transmission Reliability Margin or “TRM” shall mean the amount of transmission transfer capability necessary to provide reasonable assurance that the interconnected transmission network will be secure. TRM accounts for the inherent uncertainty in system conditions and the need for operating flexibility to ensure reliable system operation as system conditions change.
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Transmission Reliability Margin means that amount of transmission transfer capability necessary to ensure that the interconnected transmission network is secure under a reasonable range of uncertainties in system conditions.
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Transmission Reliability Margin or ‘TRM’ means the margin factored in the total transfer capability for ensuring secure operation of the Cross Border Transmission Link under a reasonable range of uncertainties in system conditions.
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Examples of Transmission Reliability Margin in a sentence

  • The Available Flowgate Capability (“AFC”) is the applicable rating of the flowgate less the projected loading across the particular flowgate less Transmission Reliability Margin and Capacity Benefits Margin.

  • TRMU is the Transmission Reliability Margin for the Interface that has not been released for sale (unreleased) as non-firm capacity by the ISO during that period.

  • TRM is the Transmission Reliability Margin for the Interface during that period.

  • NITSF is the firm capacity reserved for Network Integration Transmission Service serving Load, to include losses, and Load growth, not otherwise included in Transmission Reliability Margin or Capacity Benefit Margin.

  • Where: NITSNF is the non-firm capacity set aside for Network Integration Transmission Service serving Load (i.e., secondary service), to include losses, and load growth not otherwise included in Transmission Reliability Margin or Capacity Benefit Margin.

  • The AFC is the applicable rating of the applicable Flowgate less the projected loading across the applicable Flowgate less Transmission Reliability Margin and Capacity Benefits Margin.

  • The development of AFC components includes several factors including: • Total Transfer Capability (or “TTC”), • The base anticipated flow (referred to as Existing Transmission Commitments or “ETC” for ▇▇▇▇ and “Base Flow” for MISO) , • Transmission Reliability Margin (or “TRM”), and • Capacity Benefit Margin (or “CBM”).

  • The Transmission Reliability Margin (TRM) will be established at a level which incorporates the uncertainties and continued variability of system conditions and the practical limitations of system control.

  • The purpose of this Agreement is to delineate the responsibilities between the Parties regarding compliance obligations set forth in the following MOD Reliability Standards: MOD-001, Available Transmission System Capability; MOD-004, Capacity Benefit Margin; MOD-008, Transmission Reliability Margin Calculation Methodology; and MOD-030, Flowgate Methodology, as may be revised from time to time, as required by Section 508.1 of the NERC Rules of Procedure.

  • The AFC is the applicable rating of the applicable flowgate less the projected loading across the applicable flowgate less Transmission Reliability Margin and Capacity Benefits Margin.


More Definitions of Transmission Reliability Margin

Transmission Reliability Margin or ‘TRM’ means the amount of margin kept in the total transfer capability necessary to ensure that the interconnected transmission network is secure under a reasonable range of uncertainties in system conditions.
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Transmission Reliability Margin means that amount of transfer capability the ISO determines is necessary to ensure the reliable operation of the interconnected electric system taking into account uncertainties in system conditions and the need for operating flexibility.
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Related to Transmission Reliability Margin

  • System Availability means, with respect to any particular calendar month, the ratio obtained by subtracting Unscheduled Downtime during such month from the Total Monthly Time, and thereafter dividing the difference so obtained by the Total Monthly Time. Represented algebraically, System Availability for any particular calendar month is determined as follows:

  • Interconnected Reliability Operating Limit or “IROL” shall mean the value (such as MW, MVAR, Amperes, Frequency, or Volts) derived from, or a subset of, the System Operating Limits, which if exceeded, could expose a widespread area of the bulk electrical system to instability, uncontrolled separation(s) or cascading outages.