Power System Engineer

Overview

The IESO is committed to ensuring Ontario’s electricity system meets the province’s needs today and into the future. We oversee the provincial power grid in real‑time, govern Ontario’s electricity market, and engage with government, municipalities and Indigenous communities.

The role is within the Connection Assessments team in the Markets and Reliability Business Unit. It is a unionized position that focuses on evaluating new, modified, or retiring connections to the grid to ensure reliability, adequacy and operability.

What Makes This Role Exciting

The energy sector is rapidly evolving, offering opportunities to shape the future of Ontario’s power system and contribute to clean, reliable electricity.

What You’ll Do

• Conduct engineering studies, analysis and application of specialized technology to support real‑time operations, planning or other activities.
• Provide analytical and technical support for policies, operating agreements, equipment specifications, operational and outage plans and system investments.
• Support IESO security, adequacy and operability obligations under the Market Rules and relevant NERC and NPCC reliability standards.
• Assess the impact of new or modified facilities on reliability and validate performance of the IESO‑controlled grid.
• Develop and update models, data and security applications for existing, new or modified facilities.
• Manage online and offline security models, including models, data and security applications.
• Coordinate with neighboring entities on reliability matters under NERC, NPCC and regional market frameworks.

Assess Power System Change Role

• Undertake system impact, technical feasibility and de‑registration assessments to evaluate the reliability and operability impact of new or modified connections.
• Prepare reports containing the results of the study, required system upgrades, connection requirements and recommendations on approval or disapproval.
• Validate registration data, re‑assess proposed connections if data differ materially from the configuration or technical parameters used by the IESO.
• Provide support for regional and bulk power system planning, for preparation of evidence required by connection applicants for the OEB’s leave to construct, and for inquiries from neighboring jurisdictions.
• Conduct technical studies to support the IESO’s initiatives for evolving policies related to operations and evolution of the IESO‑controlled grid and markets.
• Support SPS/RAS classification processes on behalf of the IESO with external standards authorities.

Common Role

• Support the IESO security, adequacy and operability obligations under Market Rules and NERC, NPCC standards.
• Prepare and deliver reliability compliance evidence, including work procedures, RSAWs, market manuals, training materials and participate in reliability audits.
• Participate in task forces, committees or interconnection committees to represent the IESO and advance organizational interests.
• Provide consultative service to other departments or business units on adequacy, security and operability matters.
• Mentor and assist in training of junior staff.
• Exercise limited/periodic supervision over assigned staff on special projects.
• Sign or seal documents as a P Eng. to take professional responsibility for work, including peer review of unlicensed staff.
• Perform other duties as required.

In a Typical Day

You will conduct detailed system impact, technical feasibility, and de‑registration assessments; analyze technical data, validate registration details, and re‑assess projects when parameters change. You will prepare comprehensive reports offering study results, required system upgrades and formal recommendations for connection approvals. You will support broader system planning and respond to stakeholder and regulatory inquiries.

Role Requirements

• Professional engineering licence from Ontario and experience with power systems.
• Degree in electrical engineering or related field; equivalent education acceptable.
• Experience with power system operation, planning and security modelling.
• Knowledge of power system analysis, control, mathematics and computer science.
• Technical writing skills for effective reports.
• Minimum 6–8 years of relevant experience.

This is a promotion‑in‑place role; candidates with lesser qualifications may be considered for a Power System Engineering Analyst position.

How We Support You

• Competitive salary in the $111,072 – $158,704 range based on experience.
• Defined benefit pension plan.
• Dynamic learning and development opportunities, including job rotations.
• Inclusive culture and collaborative team environment.
• Regular compensation reviews to remain competitive.

Deadline

July 13, 2026

Equal Employment Opportunity

We believe in opportunities for everyone and are committed to creating an inclusive environment. We will provide accommodation during the recruitment process as needed.