ISO New England Planning Procedures
As the Regional Transmission Organization (RTO), ISO-NE is responsible for transmission planning and sets requirements for participants regarding reliability standards, pooled transmission facility cost review and notice of intent to change facilities.
Date Document Title Document Type
Feb 14, 2007
Report of the Ad Hoc Line Trap Rating Procedure Working Group of the System Design Task Force Dated June 1990
PDF (229k)
Feb 14, 2007
Procedures for Determining and Implementing Transmission Facility Ratings in New England
PDF (612k)
Apr 14, 2006
Ambient Temperatures and Wind Velocity for Rating Calculations
PDF (102k)
Apr 14, 2006
Analysis of Wind-Temperature Data and Effect on Current-Carrying Capacity of Overhead Conductors
PDF (952k)
Apr 14, 2006
Old Capacity Ratings Procedures
PDF (294k)
May 27, 2005 DOC (15k)
Feb 01, 2005
Cost Responsibility for Transmission Upgrades with Multiple Needs
DOC (49.5k)
Feb 01, 2005
Subordinate Proposed Plan Application Policy
DOC (44.5k)
Feb 01, 2005
Construction Sequencing
DOC (56.5k)


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