Transfer Capability & ATC

Transmission Reliability Margin (TRM)

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Definition

The amount of transmission transfer capability reserved by a Transmission Provider to ensure reliable operation of the interconnected transmission network under a reasonable range of system uncertainties, such as load forecast errors, generation dispatch deviations, and equipment outages. TRM is held back from commercial use and subtracted from TTC before calculating ATC.

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Topic Deck

Transfer Capability & ATC

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Source

FERC Pro Forma OATT / LGIP

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Related Terms in Transfer Capability & ATC

Available Flowgate Capability (AFC)

An alternative methodology to the ATC framework for calculating available transfer...

Available Transfer Capability (ATC)

A measure of the transfer capability remaining in the physical transmission network...

Capacity Benefit Margin (CBM)

The amount of transmission transfer capability reserved by load-serving entities to...

Existing Transmission Commitments (ETC)

The portion of the Total Transfer Capability that is already committed to existing...

Flowgate

A specific transmission element (line, transformer, or monitored interface) or group...

Simultaneous Feasibility Test

A test performed by the Transmission Provider to determine whether all existing firm...
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