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Greater Ottawa Regional Planning

Regional electricity planning is underway in the Greater Ottawa region, which is divided into two sub-regions – Ottawa and Outer Ottawa.

Current status: An Integrated Regional Resource Plan (IRRP) has been released for the Ottawa sub-region.

The Greater Ottawa Region covers the municipalities 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.

The local distribution companies providing service to customers in the area include: Hydro 2000 Inc., Hydro Hawkesbury Inc., Hydro One Networks Inc., Hydro Ottawa Limited, Ottawa River Power Corporation, and Renfrew Hydro Inc.


Regional Planning Initiatives Underway in Greater Ottawa Area

Ottawa sub-region

The Ottawa sub-region encompasses the City of Ottawa, including the Greenbelt, Kanata, Nepean and Orléans.

Current status: An Integrated Regional Resource Plan (IRRP) has been released for this sub-region.


IRRP Outcome

In the near-term, four transmission and distribution reinforcement projects are recommended to address demand growth and reliability needs; work on these projects is underway by Hydro One. The Working Group will seek community input on addressing the need for additional supply capacity to meet electricity demand growth in the South Nepean area, which is expected to be required around 2020. No specific long-term needs for the region have been identified at this time beyond the possible end-of-life of a station in east Ottawa before 2025, which will be addressed in the next planning cycle.


How to get involved

A Local Advisory Committee has been established to provide advice on the development of the region's longer-term electricity plan, including how best to engage the community in this discussion. Thank you to all who submitted a nomination.

To find out when the Local Advisory Committee is meeting and to participate, see Ottawa engagement initiative.  

Subscribe to receive updates on the status of the plan and to learn about opportunities for municipalities, First Nation and Métis communities, community groups, stakeholders and the general public to provide input.


IRRP Working Group

A Working Group consisting of the local distribution companies in the region, the local transmitter and the IESO will make recommendations to address the longer-term needs in the region based on planning criteria and consideration of community input. The Working Group currently consists of representatives from Hydro Ottawa, Hydro One Distribution and Transmission and the IESO. 


Area overview

With a growing population of about 900,000 people and a peak demand of about 1,800 MW, the Ottawa sub-region is one of the largest electricity planning regions in Ontario. The sub-region has a diverse mix of electricity customers including government and commercial facilities, light industry, and residential consumers.


Historical Context

In the 1950s, the National Capital Commission established a Greenbelt around central Ottawa in an effort to contain growth. While the downtown core has continued to grow, in recent years, development has largely occurred in the communities outside the Greenbelt. Supplying these communities is challenging because the existing transmission system consists of long, single-circuit 115 kV or 230 kV lines with limited supply diversity. The reconfiguration of this older system presents challenges to meeting reliability criteria under extensive urbanization and load growth.

Ottawa mapMap of Ottawa Region