The London area region includes the municipalities of Oxford County, Middlesex County, Elgin County, City of London, City of Woodstock, and City of St. Thomas. Regional planning for the London area is divided into five sub-regions: Greater London, Alymer-Tillsonburg, Strathroy, Woodstock and St. Thomas.
The local distribution companies providing services to customers in the area include:
Entegrus Powerlines Inc.
ERTH Power Inc.
Hydro One Networks Inc.
London Hydro Inc.
Tillsonburg Hydro Inc.
Community Engagement
The IESO engages with local and regional communities to seek input to help inform planning activities. See Key Resources below for the latest planning documents.
Regional electricity planning has kicked-off in the London Area electrical region to ensure a reliable supply of electricity, and to support local growth and economic development.
The 2025 London Area Scoping Assessment Outcome Report and the IESO’s response to feedback has been posted following the April 1 narrated presentation. The report detailed the need for a coordinated regional planning approach and development of an Integrated Regional Resource Plan (IRRP) for the London Electrical Area.
Engagement will continue throughout the development of the plan with more details to follow. The London Area engagement webpagecontinues to be a source of ongoing information related to regional planning activities, including any upcoming engagement opportunities.
