On January 1, 2015, the Ontario Power Authority (OPA) merged with the Independent Electricity System Operator (IESO) to create a new organization that will combine the OPA and IESO mandates and continue the high quality work both organizations are known for.
Find out more:
News, publications, presentations and speeches
All news, publications and speeches posted after January 1, 2015 can be found on the Media section of www.ieso.ca. Archives from the former OPA can be found in News.
The IESO is committed to actively engaging all parties interested in and impacted by the organization's initiatives. Find more on its Stakeholder Advisory Committee and all ongoing stakeholder engagement activities at www.ieso.ca.
A list of regulatory documents relevant to the former OPA.
Understanding electricity prices
Information to help explain electricity prices in Ontario.
Accessibility Standard for Customer Service
The IESO is committed to maintaining an accessible environment for persons with disabilities in the delivery of all its services.
Directives and letters from Minister of Energy
A list of directives and letters to the former OPA from the Minister of Energy.
A list of documents relevant to the former OPA, including organizational policies, credit rating reports, and the Governance and Structure By-Laws.
Disclosure of Travel and Hospitality Expenses
Information on the travel and hospitality expenses of the former OPA’s Board Members, Chief Executive Officer, Vice Presidents and any other individuals, as required by the Public Sector Expenses Review Act, 2009.
Freedom of Information Requests
How to submit a request under the Freedom of Information and Protection of Privacy Act.