Dynamic Line Ratings

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

Definition by MISO

Source: ¹ (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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Last modified: 2025-11-29

Related: ambient-adjusted-ratings · facility-rating

← Disturbance · Dynamic Operating Envelope →

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1. MISO (2023). FERC Order 881 Update. https://cdn.misoenergy.org/20230822%20RSC%20Item%2005%20FERC%20Order%20881%20Update%20(RSC%202018%2054A)%20(RSC%202021%2054B)629904.pdf ↩