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Regional Electricity Planning - Greater Ottawa

Forecasting and Planning

Regional electricity planning in the Greater Ottawa Region is underway. This engagement initiative will provide interested parties with an opportunity to offer input for consideration during the regional planning process.

Regional electricity plans take up to a 20-year outlook on every region in the province. The planning process provides an opportunity for communities to tell the IESO about anticipated needs and priorities, and to contribute to the development of the options for meeting this region’s future electricity needs.

The IESO engages with local and regional communities to seek input to help inform planning activities. 

All interested parties are invited to participate in this engagement initiative and may include but are not limited to:

  • Municipalities including those bordering the Ottawa River from Stewartville in the west to Hawkesbury in the east and north of Highway 43. At the centre of this region is the Ottawa Area, comprising the City of Ottawa, including Kanata, Nepean and Orleans. 
  • Indigenous Communities including: MNO Ottawa Region Métis Council; the Algonquins of Pikwakanagan; as well as nine additional Algonquin communities, which are represented for the purposes of consultation and engagement by the Algonquins of Ontario Consultation Office. The Mohawk Council of Akwesasne will be informed of the engagement due to their proximity.  The Huron Wendat of Wendake, Quebec will also be informed as they have archaeological resources in southern Ontario.
  • Local distribution companies who serve the community and already participate as part of the Technical Working Group including Hydro 2000 Inc., Hydro Hawkesbury Inc., Hydro One Networks Inc. (Distribution), Hydro Ottawa Limited, Ottawa River Power Corporation, Renfrew Hydro Inc.
  • Transmitters
  • Consumers and services providers for the area

Greater Ottawa Scoping Assessment Technical Working Group - A Technical Working Group consisting of the six LDCs in the region, the transmitter, and the IESO will use this regional planning engagement initiative to incorporate input while developing the Scoping Assessment Outcome Report for the region.

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

Related Information

December 2022 Hydro One Needs Assessment - Greater Ottawa

February 2020 Ottawa Sub-Region Integrated Regional Resource Plan (IRRP)

February 2019 IESO Hand-off Letter to Hydro One - Ottawa

2018 Greater Ottawa Region Scoping Assessment Outcome Report

2015 Ottawa Area IRRP

See also the Ottawa Area regional planning web page

Schedule of Activities

Date Materials Expected Actions

March 20, 2023

Final Greater Ottawa Region Scoping Assessment Outcome Report

Final version posted

February 28, 2023

Deadline for public comment on draft Greater Ottawa Region Scoping Assessment Outcome Report

Feedback Received:

All feedback to be posted

February 14, 2023

Public Webinar


  • Overview of the regional electricity planning process in Ontario
  • Update on planning activities underway in the region
  • Overview of the Scoping Assessment
  • Next steps

Recorded Presentation


February 8, 2023

Draft Great Ottawa Region Scoping Assessment Outcome Report

Draft posted for public comment

January 26, 2023

Launch Greater Ottawa Scoping Assessment engagement