Skip Links
Sector Participants > Engagement Initiatives > Engagements > Integrated Regional Resource Plan-Windsor-Essex

Regional Electricity Planning - Windsor-Essex

Forecasting and Planning

Following the conclusion of the second cycle of regional electricity planning for Windsor-Essex in September 2019, further work was undertaken to address remaining needs in the Kingsville-Leamington area as an addendum to the IRRP. The final report and Appendices were posted in February 2022 that includes additional recommendations to support the strong economic growth in the region being driven by the rapidly expanding local indoor agriculture sector. Engagement on this addendum was undertaken in conjunction with the West of London Bulk Plan given the interdependencies and opportunities for alignment. The next planning cycle is expected to commence in Q3 2022. The first cycle of regional planning for the region began in 2010 and was completed in April 2015 with the release of an Integrated Regional Resource Plan (IRRP).


This engagement initiative will provide interested parties with an opportunity to offer input for consideration into the development of the IRRP. Interested parties include but are not limited to:

  • Municipalities including the City of Windsor, Town of Amherstberg, Town of Essex, Town of Kingsville, Town of Lakeshore, Town of LaSalle, Municipality of Leamington, Town of Tecumseh, and the western portion of the Municipality of Chatham-Kent and the Township of Pelee Island
  • Indigenous Communities including the Caldwell First Nation
  • Local distribution companies who serve the community including EnWin Utilities, Essex Powerlines, E.L.K. Energy, Entegrus and Hydro One
  • Transmitters
  • Consumers and service providers for the area

All interested parties are invited to participate in this engagement initiative.

Windsor-Essex Working Group - A Technical Working Group consisting of the local distribution companies in the region, the local transmitter and the IESO will use this regional planning engagement initiative to consider input that will identify and meet local electricity needs. The Working Group consists of representatives from the five LDCs in the area - EnWin Utilities, Essex Powerlines Corporation, E.L.K. Energy Inc., Entegrus Powerlines Inc., the transmitter Hydro One Networks Inc., and the IESO.

All comments and enquiries in this engagement initiative can be directed to

Related Information

Southwest Ontario Bulk Planning Initiatives

IESO Letter to Hydro One re new transmission line, June 2019

2015 Windsor-Essex IRRP

2015 Windsor-Essex IRRP - Appendix

Hydro One’s Needs Assessment - October 2017

2018-2019 Windsor-Essex Region Engagement Plan

Kingsville-Leamington LAC Terms of Reference

Kingsville-Leamington LAC Membership

See also Windsor-Essex regional planning webpage

Documents referenced on this page, but not posted, can be obtained by contacting with a link to the web page that lists the document and advise whether it needs to be provided in an accessible format. Please allow a minimum of one business day for a response.

Schedule of Activities

Date Materials Expected Actions

February 10, 2022

IRRP Addendum Report and Appendices posted


September 23, 2021

IESO responses to feedback posted

West of London Bulk Plan Report


August 6, 2021

Feedback due for West of London engagement webinar

All feedback posted

July 15, 2021

Engagement webinar on IRRP Addendum and parallel West of London bulk system study

Update on West of London bulk system study

  • Discuss and seek input on draft recommended solutions

Update on IRRP Addendum Kingsville-Leamington Study

  • Discuss and seek input on potential options 

Recorded presentation


March 31, 2021

Webinar on recommendation for a new transmission line between Lambton and Chatham

Recorded presentation

Responses to questions and comments received posted on event page.

January 28, 2021

IESO responses to feedback posted


January 28, 2021

IESO responses to feedback posted


December 17, 2020

Feedback due

All feedback posted


November 26, 2020


Engagement webinar on IRRP Addendum

Part 1:

  • Overview of IRRP Addendum Kingsville-Leamington Study
  • Discuss defined needs and seek input on potential solutions

Part 2:

  • Overview of West of London bulk system study
  • Discuss defined needs and seek input on potential solutions

Recorded presentation                       

September 3, 2019

2019 Windsor-Essex Integrated Regional Resource Plan (IRRP)

2019 Windsor-Essex IRRP Appendices

IESO response to feedback on draft IRRP recommendations

Posted along with responses to feedback

August 23, 2019

Feedback due

  • Ontario Greenhouse Vegetable Growers

All feedback posted

August 15, 2019

Engagement Webinar #3

  • Presentation
  • Overview of analysis to date
  • Seek input for consideration on proposed recommendations for IRRP

Recorded Presentation

Feedback due August 23, 2019


July 23, 2019 

  • IESO response to feedback

Response to feedback posted

June 14, 2019

Feedback due

  • EDF Renewables Canada Inc.

All feedback posted

May 30, 2019

Meeting Summary


Kingsville-Leamington LAC meeting #3: In person

  • Presentation

Present and seek input on draft demand-side recommendations for Kingsville-Leamington area


May 10, 2019

Engagement Webinar #2

  • Presentation
  • Overview of the region’s electricity needs
  • Seek input for consideration on potential solutions

Feedback due June 14, 2019

February 27, 2019
10:00 a.m. – 2:30 p.m.
Best Western Plus, Leamington


Meeting Summary

 LAC Meeting #2: In person

  • Presentation
  • Update to Sample Peak Day graphs on slide 15

Post meeting materials and summaries


January 31, 2019

  • IESO Letter to Hydro One re Leamington switching station
  • Frequently Asked Questions

December 4, 2018


Meeting Summary

First meeting of the Kingsville-Leamington Local Advisory Committee

  • Presentation

November 30, 2018

IESO to respond to feedback on draft engagement plan and terms of reference

Announcement of Leamington-Kingsville Local Advisory Committee


Post final engagement plan and final terms of reference

Post membership of Local Advisory Committee

November 23, 2018

Feedback due on draft engagement plan; terms of reference

Call for nominations closed

Post feedback

November 15, 2018


Engagement Webinar #1 – Present:

  • Presentation
  • Overview of Windsor-Essex IRRP engagement initiative:                
  • Draft Windsor-Essex Engagement Plan                                            
  • Draft Kingsville-Leamington Local Advisory Committee Terms of Reference

Recorded Presentation

The comment period to submit feedback on the draft engagement materials closed on November 23, 2018 and materials have now been finalized.  


November 1, 2018

Launch IRRP Windsor-Essex engagement initiative

  • Communication                
  • Draft Engagement Plan                          
  • Draft Terms of Reference for Local Advisory Committee
  • Call for nominations open for Local Advisory Committee

Seek input on draft engagement plan and terms of reference for Advisory Committee


 March 2018


Windsor-Essex Scoping Assessment Outcome Report and Terms of Reference

Final version was posted following a two week comment period


 January 2018


2018 Windsor-Essex Scoping Assessment Outcome Report - Responses to Public Comments

Responses were posted to IESO website