Region Overview

The Windsor-Essex region is the southern-most part of Ontario, extending from Chatham southwest to Windsor. It consists of the City of Windsor, the Municipality of Leamington, the Town of Amherstberg, the Town of Essex, the Town of Kingsville, the Town of Lakeshore, the Town of LaSalle, the Town of Tecumseh, and the Township of Pelee, as well as the western portion of the Municipality of Chatham-Kent.

Region's Local Distribution Companies
  • E.L.K. Energy Inc.
  • Entegrus Powerlines lnc. (Chatham-Kent)
  • EnWin Utilities Ltd.
  • Essex Powerlines Corporation
  • Hydro One Networks Inc.

Map: Windsor-Essex

Current Status

The third regional planning cycle for this region was kicked off in October 2022 beginning with the Needs Assessment (NA). The NA for this region was completed in February 2023. It identified the needs in the region and recommended that further regional coordination is required, and subsequently Scoping assessment was published by IESO in May 2023.​​​​

(Most Recent Shown First)
Status Completion Date
Scoping Assessment (3rd Cycle)
Completed May 2023
Needs Assessment (3rd Cycle)
Completed February 2023
Integrated Regional Infrastructure Plan (Addendum)
Completed February 2022
Regional Infrastructure Planning (2nd Cycle) Completed March 2020
Integrated Regional Resource Planning (2nd Cycle) Completed September 2019
Scoping Assessment (2nd Cycle) Completed March 2018
Needs Assessment (2nd Cycle) Completed October 2017

*The completed reports are available below. 

Relevant Documents

Regional Infrastructure Planning (RIP)
Name Completion Date
Windsor Essex RIP - Report (2nd Cycle) March 2020
Windsor Essex RIP - Report December 2015

Integrated Regional Resource Planning (IRRP)
Name Completion Date
Windsor Essex IRRP (Addendum) – Report February 2020
Windsor Essex IRRP (Addendum) – Appendix February 2020
Windsor Essex IRRP – Report (2nd Cycle) September 2019
Windsor Essex IRRP – Report April 2015
Windsor Essex IRRP – Appendix April 2015

Needs Assessment (NA) & Scoping Assessment (SA)
Name Completion Date
Windsor Essex SA – Report (3rd cycle) May 2023
Windsor Essex NA - Report (3rd C​​ycle) February 2023
Windsor Essex SA - Report (2nd Cycle) March 2018
Windsor Essex NA - Report (2nd Cycle) October 2017

Additional Documents
Name Completion Date
SECTR - HO Sect 92 Submission  January 2014