Job Description

INDEPENDENT ELECTRICITY SYSTEM OPERATOR (IESO) Requisition ID: 19673
Location: Mississauga
Status: Regular
Business Unit: Markets & ReliabilityWhy join us?You\'ve got great skills. And you want to use them in an organization where you know what you do every day matters. We get that.
We also know that ensuring Ontarians have access to affordable and reliable power doesn\'t happen by accident. So we give you the tools, flexibility and support you need to achieve your goals, and development opportunities to help you grow. You\'ll thrive in a collaborative, team-based environment that values your unique skills and experiences - and recognizes that when you do better, we become even better too.Who we areThe Independent Electricity System Operator (IESO) works at the centre of the province\'s power system, ensuring Ontarians have access to reliable and cost-effective electricity when and where they need it. We operate the province\'s electricity grid 24/7, design, run and oversee the wholesale electricity markets, and plan and prepare to meet Ontario\'s electricity needs - now and into the future.The OpportunityAnalyze statistical, mathematical and engineering data to assist professional staff carrying out studies relative to power system operation and reliability. Write, implement, test and debug computer programs and associated data with respect to monitoring of system operating limits. Maintain computer programs and associated data in satisfactory operating and production condition. Determine system fault currents under short-circuit conditions through use of commercial power system analysis tools. Prepare load flow and short circuit base cases used for operating and planning studies. Maintain and manage technical databases. Document and assist in the coordination of planned outages in the short term. Create and maintain ICG single line diagrams for Control Room and other users.What you\'ll be doing

• Analyze statistical, mathematical and engineering data to assist professional staff carrying out studies relative to power system operation and reliability. Receive assignments as a statement of an objective, generally by discussions covering requirements, and scope of individual involvement. Plot, tabulate or otherwise extend and complete data. Assist in the analysis of data for the solution of problems related to power system operation and reliability. Portray results in graphic, tabular or other form suitable to the formulation of conclusions by others. Assist in the preparation of related reports as requested.
• Write, modify, implement, test and debug computer programs and associated data to facilitate the monitoring of security limits in the EMS. Receive assignment as a statement of an objective, generally accompanied by discussions on parameters, interfacing and the like. Work with users on the problem identification and definition of requirements. Design programs based on standard programming models to provide mathematical solutions to engineering problems. Prepare detailed flow charts and design logic and subroutines within the program. Develop and prepare associated documentation and operating instructions and submit completed package for supervisory reference and approval. Assist with implementation of programs into production modes.
• Maintain computer programs and associated data in satisfactory operating and production condition. Assignments originate through Supervisor, or designated personnel. Plan and carry out tests to detect and isolate problems and discuss findings with responsible personnel. Contact users and others involved to discuss and agree on remedial measures. Correct or modify coding and update documentation, listings and operating procedures.
• Determine system fault currents under short-circuit conditions through use of commercial power system analysis tools. Discuss short-circuit requests with engineering personnel concerned to establish the critical assumptions, stages of system development to be studied, extent of system representation, generation level and outage conditions. Select an existing base case or establish a new base case as required. Obtain all line, machine and transformer data necessary for internal and external systems to establish the short circuit base cases. Prepare documentation, showing sources of information, changes and calculations performed. Tabulate computer results and submit for supervisory reference and use.
• Prepare load flow base cases for operating and planning studies, outage assessment studies and contingency analysis. Collect, analyze and prepare all data required for the development of loads, generation patterns and system configuration changes essential for the creation of base case load flows. Implement changes provided by other users in the base case, fine-tune the load flow and deliver the final case in a timely manner for production environment. Design and create single line diagrams for the required study areas.
• Design and create, after discussions with engineers, single line diagrams for the various study areas in Ontario to facilitate system studies.
• Maintain and manage technical databases. Collect data necessary to maintain and update databases used in the operation of the power system; such as, lines, transformers, generator, exciter, circuit breaker, capacitor, loads, relay settings and flowgates. Support EMS applications by collecting, collating and verifying equipment data.
• Document and assist in the coordination of planned outages in the short term. Maintain and update data files relative to the present and future status of the power system. Monitor future planned outages submitted for reference and approval by the market participants, collect data pertaining to immediate and future system configuration and document as staged development diagrams portraying existing and planned facilitates several years into the future. Assess telecommunication outages and prepare list of telemetry points being affected by the outage. Update the outage slip in IOMS.
• Using commercial CAD application, create ICG single line diagrams for Control Room and other users as requested. Print the requested size drawings and distribute to users.
• Maintain the EMS save cases directory space. Delete old snap shots as required to maintain adequate space to facilitate user studies. Convert any TLR save cases into PSS/E raw files for TLR investigation purposes.
• Periodically supervise other staff assigned by Supervisor to assist in carrying out work assignments.
• Perform other duties as required.

What you need to succeedEducation:

• Requires knowledge of power system networks, control and feedback systems, electrical and electronic theories, advanced mathematics and engineering principles to analyze statistical, mathematical and engineering data in assisting professional staff to carry out studies relative to power system operation and reliability.
• Requires knowledge of computer techniques to write and modify programs and utilize computer facilities.
• Requires knowledge of technical writing for the preparation of clear, concise reports.
• This knowledge is considered to be normally acquired either through the successful completion of Grade 12 in a Secondary School, Commercial or Technical School plus a three-year course of concentrated study in the appropriate subjects obtained in the Province of Ontario from a College of Applied Arts and Technology, Polytechnical Institute or Community College or by having the equivalent level of education.

Experience:

• Requires experience to become familiar with present and planned power system configuration, interrelationships and interdependence between various locations functions and personnel, methods, practices, computer programs and facilities available for carrying out the work and similar detail associated with the position.
• Requires experience in carrying out applied research in fields of electrical and electronic engineering under the direction of engineers to be able to provide technical support and services in the testing and operation of power system reliability, and to identify and communicate technical problems, processes and solutions.
• Requires experience to become familiar with IESO organization, standards and procedures.
• A period of up to six years is considered necessary to gain this experience.

What\'s in it for you

• A comprehensive total rewards program, including best-in-class benefits and a flexible workplace
• A challenging, fast-paced and collaborative team environment, where your perspectives and experiences matter
• Leaders who support your growth and success through regular feedback and coaching
• The opportunity to work with some of the brightest minds in the industry

Deadline: April 5, 2024For future reference, please ensure to save a copy of the job description as it will no longer be available once the posting closes.At the IESO, we know that achieving great results depends on embracing diversity by attracting, developing and retaining people from a wide variety of backgrounds. We do this by ensuring our recruitment and advancement policies are fair and equitable, and by creating an accessible and inclusive environment - one that values every team member\'s unique skills and experiences and ensures they have the support they need to achieve their potential. If you require accommodation during the recruitment process, please let us know.We thank you for your interest in a career at the IESO, but we will only contact those candidates selected for an interview.Note: The successful candidate must be eligible to work in Canada and will be subject to a background check.The IESO offers a hybrid work model program to most of our employees, based on business needs. Individuals participating in the program can work an average of three days per week remotely within Ontario. It also offers three flex weeks when individuals can work remotely within Ontario . When working in the office, you will be located at our Mississauga location.Join our talent communitySign up for talent community; stay in touch, find out about new opportunities - and discover how you can make a difference. Discover how we use our expertise and commitment to deliver reliable and affordable electricity to Ontario\'s businesses and communities, and how we\'re innovating to secure a stronger energy future for all Ontarians. Visit and be sure to follow us on .Find out , and what we offer.

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