Formalizing the Integrated Bulk System Planning Process

The IESO plans for the resources needed to meet Ontario’s future electricity needs. This includes forecasting electricity demand, conservation, supply and transmission to transparently identify needs for electricity services well in advance of when they occur. Given changes with the potential to influence energy planning in Ontario, including the movement toward a more competitive electricity market through the Market Renewal Program, and the rapid development and availability of new technologies and tools, the bulk system planning processes must evolve to coordinate with these changes.

The IESO will be seeking feedback from communities and stakeholders on the design of a formal integrated bulk system planning process including:

  • How the bulk planning process is expected to evolve to respond to changes in electricity planning, particularly with respect to Market Renewal
  • How and where engagement should occur in the bulk planning process
  • How changes to the bulk planning process may affect communities and stakeholders

Additional details on the IESO’s plans to engage communities and stakeholders throughout the process can be found in the engagement plan (updated February 2020). All comments and enquiries on this engagement can be directed to

Schedule of Activities



March 19, 2019

Stakeholder Feedback

February 26, 2019

Bulk System Planning Webinar #2

Recorded Presentation

December 14, 2018

Stakeholder Feedback


November 23, 2018

Phase 1 Bulk Planning Webinar

November 7-8 & 21-22, 2018

Regional Energy Forums

October 22-24, 2018

First Nations Energy Symposium

September 13, 2018

IESO Technical Planning Conference