Ontario’s electricity system planners are attempting to get an early read on future demand and grid connection requirements through a newly launched voluntary reporting and review process. It’s touted as an opportunity for development proponents to build relationships and gain insight for navigating the more formal mandatory processes they must undertake to secure a connected power supply for their projects.
Developers and/or land use planning officials or local distribution companies (LDCs) are invited to proactively submit information about large projects that are expected to represent at least 10 megawatts (MW) of demand. That will trigger an exercise that Ontario’s Independent Electricity System Operator (IESO) has dubbed the major projects identification committees (MPIC) process.
“Participation in the MPIC process enhances the IESO’s early visibility into projects and supports system planning readiness. Projects that are not identified may be less visible in early-stage planning, particularly where information is not otherwise available,” states background information posted on the IESO’s website. “The MPIC process does not approve, prioritize or endorse projects; does not guarantee connection to the electricity system; does not influence resource or transmission procurement outcomes.”
Rather, it’s intended to confirm project details, facilitate communication among parties that may be involved in subsequent compulsory processes and increase transparency for electricity system planners and the general public. Participants begin by submitting an online intake form, and can use the same portal to add and update information throughout the MPIC process.
The IESO may request additional details, if required, before striking a project-specific evaluation committee, called project validators, who will be expected to provide “high-level contextual input” as they review project information. All information gleaned from the process will then be incorporated into the IESO’s major projects list, which, in turn, will be considered in the development of electricity system plans and forecasts.
“Project validators may include provincial ministries and agencies, LDCs, transmitters, gas utilities, municipalities, Indigenous communities and organizations, local and regional development agencies and/or other relevant entities,” the IESO background states. “They must enter into a non-disclosure agreement with the IESO and comply with all applicable confidentiality obligations. Participation as a project validator does not imply endorsement of any specific project.”
The new MPIC process arises from directions set out in the Ontario government’s integrated energy plan, released in 2025. The IESO promises to consider participant and stakeholder feedback on the MPIC rollout and effectiveness.


