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Project: Biennial Transmission Expansion Plan

Biennial Transmission Expansion Plan Overview

ColumbiaGrid’s planning and expansion agreement calls for preparation of a biennial transmission expansion plan based on the principle of single-utility planning.  The plan is to address a 10-year planning horizon and is intended to identify and resolve the projected needs of parties to the agreement so they can meet long-term firm transmission obligations. 

Each biennial transmission expansion plan starts with the existing firm transmission plans of utilities in the ColumbiaGrid footprint and is followed by a system assessment to determine the areas of the system that do not meet reliability standards. Study teams are created to resolve the reliability issues identified in the system assessment. The plans that are developed to resolve these issues are then included in the biennial transmission expansion plan. 

 

Timeframe:

Status: Active

Lead Staff:
Paul Didsayabutra   Contact

Additional Staff

Contact
Documents
07/19/2017 2017 System Assessment DRAFT (v: 2017 System Assessment DRAFT)   

...7 SA Report_DRAFT_20170719.pdf   download>

 

04/26/2017 23HW Transient Stability System Assessment 2017 Case (v: 23HW Transient Stability System Assessment 2017 Case)   

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04/26/2017 23HS Transient Stability System Assessment 2017 Case (v: 23HS Transient Stability System Assessment 2017 Case)   

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01/13/2017 2017 Biennial Transmission Expansion Plan Draft for Comment (v: 2017 Biennial Transmission Expansion Plan Draft for Comment)   

...nsionPlan-Draft forComment.pdf   download>

 

02/18/2016 2016 Update to the 2015 Biennial Plan (v: 2)   

2016BiennialPlan-Finalweb.pdf   download>

 

09/16/2014 2014 Othello Area Feasibility Study (v: 1)   

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