Transmission Expansion

The addition or modification of facilities of the Transmission System.

Last Updated:  June 22, 2025

Tags:  

# transmission    # system-operator    # nyiso

Definition by NYISO

Source: p4, Version 4.2

A transmission expansion is the addition or modification of facilities of the NYS Transmission System that may be proposed or initiated by an Eligible Customer, including a TO, under Section 3.7 of or Attachment P to the NYISO OATT.

Previous: Transient Stability Assessment

Edit This Page

Next: Transmission Interconnection Procedures