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Corporate Reporting

IESO’s 2015 Annual Report: Powering a Connected World

IESO Annual Report 2015The IESO’s 2015 Annual Report, Powering a Connected World, identifies some of the forces that are impacting Ontario’s electricity sector. The report includes a focused look at planning, conservation, as well as market and system evolution. Also featured are spotlight articles on cybersecurity, nuclear refurbishments, the Industrial Accelerator Program and the recent Demand Response Auction. The report comprises two booklets – the front-end narrative and the financial statements.    

IESO's 2016-2020 Strategic Plan

The IESO's 2016-2020 Strategic Plan describes some of the opportunities and challenges the organization is expected to face over the next five years and charts a clear course forward. The plan considers a range of environmental factors that are expected to affect the organization, including climate change, emerging technologies, operability, consumer engagement and cybersecurity, among others. Four overarching goals have been set for the IESO:

  • Deliver superior reliability performance in a changing environment,
  • Drive to a more efficient and sustainable marketplace,
  • Be recognized as a trusted advisor, informed by engagement, and
  • Invest in our people and processes to meet the needs of the sector.

IESO Usage Fee for 2016 Approved by Ontario Energy Board

The Ontario Energy Board (OEB) issued a decision and order on December 29, 2016 approving the IESO's revised fee application. Effective January 1, 2017, there are two separate usage fees for the IESO, a fee of $1.1636/MWh to domestic customers and another fee of $0.9603/MWh to export customers.

 The usage fee of $1.1636/MWh to domestic customers will be applied to each market participant's allocated quantity of energy withdrawn (AQEW) from the IESO-controlled grid plus the embedded generation volumes reported by each LDC to the IESO on a monthly basis.

The usage fee of $0.9603/MWh to export customers will be applied to each market participant's scheduled quantity of energy withdrawn (SQEW).

These fees will serve as the IESO's 2017 interim usage fees until the determination of its 2017 fees application which will be filed following the Minister of Energy's approval of the IESO's 2017-2019 business plan.

Both usage fees outlined above will now be settled under charge type 9990 "IESO Administration Charge" and charge type 754 "OPA Administration Charge" will no longer be utilized effective January 1, 2017.

More details can be found on the OEB's website in the Decision and Order (EB-2015-0275) document.

Doing Business with the IESO

Qualified interested parties are encouraged to view and respond to current opportunities to provide goods and services to the IESO.

Requests for Information (RFI), Requests for Quotes (RFQ), and Requests for Proposals (RFP) are listed in the table below, as well as on the
MERX e-tendering web site, under Private Tenders.

Questions related to procurement should be directed by email to rfp.info@ieso.ca or by telephone to 905.855.6401. For additional submission deadlines, click on the procurement item. To be notified of new opportunities by email please subscribe to the ​RFI/RFQ/RFPs list.

Procurement Opportunities


Procurement Item


Closing Deadline

​RFP-100Benefits Administration​March 3, 2017
​3:00 pm on April 18, 2017
​RFP/CON/16/06/000244Bilingual Call Centre Services February 14, 2017 ​3:00:59 (EST) on Friday March 15, 2017
​RFSQ-4-2016 ​IESO Request for Supplier Qualification​July 4, 2016​June 25, 2021 at 3:00 p.m.

Accessibility for Ontarians with Disabilities

The IESO is committed to treating all people in a way that respects their dignity and independence. The IESO believes in integration and equal opportunity for employees. The IESO is committed to meeting the needs of stakeholders with disabilities in a timely manner, and will do so by taking reasonable measures to prevent and remove barriers to accessibility and to meet the requirements under the Accessibility for Ontarians with Disabilities Act, 2005. A copy of the IESO's related policies and procedures are available upon request. The IESO's Multi-Year Accessibility Plan outlines the specifics of the IESO's plans to improve accessibility for people with disabilities. As part of the IESO's efforts to meet the needs of people with disabilities, documents posted to this website will be made available in additional formats upon request to  customer.relations@ieso.ca.

See also accessibility standards established by the Ontario Power Authority      


Memorandum of Understanding

A Memorandum of Understanding signed by Ontario's Minister of Energy and the IESO's Chair sets out the accountabilities, relationships, roles and responsibilities between the Ministry of Energy and the IESO, and their representatives.

IESO Licences and Permits

IESO Licences and Permits issued by the Ontario Energy Board and the National Energy Board allow the IESO to discharge its duties to oversee the IESO-administered markets and operate the IESO-controlled grid, as well as to facilitate emergency exports to neighbouring jurisdictions in the United States.

IESO regulatory filings can be accessed on the websites of the Ontario Energy Board or National Energy Board.

Credit Ratings

DBRS ​Moody's
​Issuer Rating​A(high)​Aa2

For further information, please refer to each of the respective rating agency's website. Ratings may be revised or withdrawn at any time by the rating agencies. Information as of April 28, 2016.

Disclosure of Travel, Meals and Hospitality Expenses

The IESO provides information on the travel and hospitality expenses of its Board Members, Chief Executive Officer, Vice-Presidents and any other individuals, as required by the Public Sector Expenses Review Act, 2009.

Search Expense Reports

To view expense reports, select Current or Former Employees/Appointees, then a reporting period and then an individual.

Current Employees/Appointees

Current Employees
Current Appointees

Former Employees/Appointees

Former Employees
Former Appointees

Reporting Period:

For expense reporting of former Ontario Power Authority employees and appointees, see http://www.powerauthority.on.ca/about-us/disclosure-travel-and-hospitality-expenses.

If you have any questions, please contact IESO Customer Relations at 1.888.448.7777 or 905.403.6900 or by email at customer.relations@ieso.ca.

Code of Conduct

The IESO is relied upon to support the development of a robust electricity sector and to operate Ontario's power system and markets with independence and integrity. All IESO employees are required to adhere to a code of conduct which sets out the standards of conduct that they are expected to meet in order to ensure the continued trust and respect of market participants, market service providers, program participants, contractual counterparties, Aboriginal communities, stakeholders, electricity consumers and other government organizations. The IESO also expects its business partners, consultants and contractors to uphold these high ethical standards.

The IESO's Code of Conduct provides a framework which addresses issues of business ethics through specific rules and general standards of conduct.

Financial Reports

IESO 2016-2018 Business Plan

2016 Quarterly Reports: Q3| Q2 | Q1 

Previous Annual Reports: 2015 | 2014 | 2013 | 2012 | 2011 | 2010

OPA Financial Reports

Annual Reports: 2014 | 2013 | 2012 | 2011 | 2010

Corporate Performance

The IESO 2016 Corporate Performance Measures define what is needed to deliver on strategic priorities and contain targets that set out the desired performance for each measure.

The IESO reports annually on its progress in meeting the performance targets set for the current year. See 2015 Corporate Performance Results.

Customer Surveys

The IESO conducts an annual survey asking market participants to share feedback on their customer experience. This important tool measures how well the IESO is meeting the needs of its customers and it identifies areas where improvements can be made.

Read the 2013 Market Participant Survey Report.