Dynamic Line Ratings

A grid enhancing technology (GET) that provides real-time ratings of transmission lines based on current weather conditions.

Also known as:  

DLR

Last Updated:  November 03, 2025

Version:  1.0.2

Generated:  November 06, 2025

Tags:  

# system-operator    # grid-enhancing-technology

See Also:  

Ambient-Adjusted Ratings    Facility Rating

Definition by MISO

Source: p10

A transmission facility rating that: (1) applies to a time period of not greater than one hour; and (2) reflects up-to-date forecasts of inputs such as (but not limited to) ambient air temperature, wind, solar heating intensity transmission line tension, or transmission line sag.

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