Provost to Edgerton and Nilrem to Vermilion Transmission Development (1781)

On December 16, 2016 the AESO filed its Needs Identification Document (NID) for Transmission Development with the Alberta Utilities Commission (AUC). An amended NID was filed on March 26, 2018, and an oral hearing was conducted the week of December 17, 2018. On April 10, 2019, the AUC approved the AESO’s NID.

Please see the documents below for more information on the need for this development.

Key documents

• Provost to Edgerton and Nilrem to Vermilion Transmission Development Stakeholder Newsletter [Posted October 24, 2016]
• Notification of AESO Regulatory Filing [Posted: December 1, 2016]

Amended Provost to Edgerton and Nilrem to Vermilion Transmission System Reinforcement NID [Posted: March 26, 2018]

• Supplement to Appendix A - AESO PENV Area Transmission Reinforcement Planning Studies
• Amended Appendix B - AESO Load and Generation Forecast

Provost to Edgerton and Nilrem to Vermilion Transmission System Reinforcement NID [Posted:December 16, 2016]

Appendix A - AESO PENV Area Transmission Reinforcement Planning Studies
Appendix B - AESO Load and Generation Forecast
Appendix C - TFO Capital Cost Estimates
Appendix D - AESO Participant Involvement Program (PIP)
Appendix E - Commission Rule 007, Section 6.1 NID7(9)
Appendix F - ATCO Electric Ltd. letter regarding Vermilion 710 Substation
Appendix G - AESO Transmission Planning Criteria - Basis and Assumptions

Previous plans

In April 2014, we first informed stakeholders about our plans to cancel certain transmission system developments previously approved in 2011 as part of the Central East Transmission Development Amendment (CETD). As part of its application to the Alberta Utilities Commission for the proposed PENV transmission development, the AESO will also apply for approval to cancel certain unconstructed CETD components that are no longer needed.

In July 2014, the AESO informed stakeholders of the need for transmission development referred to as the Vermilion to Red Deer, Edgerton to Provost Transmission Development (VREPTD). As part of its ongoing planning process, the AESO has decided not to proceed with that development. The Provost to Edgerton and Nilrem to Vermilion Transmission Development (PENV) is proposed to replace parts of the VREPTD. Further developments west of PENV may be required in the future, and if so we will notify you of our plans at that time.  

Previous plans key documents

• Central East Transmission Development Amendment – Update [Posted: September 16, 2014]

• Vermilion to Red Deer, Edgerton to Provost Transmission Development Newsletter [Posted: July 14, 2014]

Needs Identification Document

• Central East Region Transmission Development Needs Identification Document [Posted: May 6, 2010]
• • Appendix A - Existing System Power Flow Plots [Posted: May 6, 2010]
  • Appendix B - Historic Peak Substation Load Data [Posted: May 6, 2010]
  • Appendix C - Alternatives Detail [Posted: May 6, 2010]
  • Appendix D - Steady State and Voltage Stability Analyses [Posted: May 6, 2010]
  • Appendix E - Transient Stability Analysis [Posted: May 6, 2010]
  • Appendix F - Land Impact Assessment [Posted: May 6, 2010]
  • Appendix G - Cost Estimates & Economic Analysis [Posted: May 6, 2010]
  • Appendix H - Participant Involvement Program [Posted: May 6, 2010]
  • AUC Decision [Posted: February 10, 2011]