Independent Electricity System Operator, Ontario Power Authority have merged

Jan. 2, 2015

The Independent Electricity System Operator (IESO) and the Ontario Power Authority (OPA) have now merged, operating as one organization.

This new organization is responsible for the real-time operation of the Ontario electricity system and market, long-term energy planning, procurement, and the promotion of a conservation culture in the province.  Amalgamation will achieve efficiencies going forward by reducing overlap, reducing costs and streamlining electricity sector planning.

“The merger of the two organizations brings together a breadth of expertise and experience in the operation of and planning for the province’s power system,” said Bruce Campbell, President and CEO of the IESO. “It deepens our role within the energy sector, allowing us to more effectively engage with stakeholders on key issues and develop new and more efficient approaches to meet the needs of all Ontarians.”

The IESO is working to ensure the transition is as seamless as possible for customers and stakeholders.  A newsletter, highlighting the new role of the organization is being emailed out to industry stakeholders and is posted on the IESO’s website:

The IESO manages the province’s power system so that Ontarians receive power when and where they need it. It plans and prepares for future electricity needs, and works with its partners to guide conservation efforts. A not-for-profit entity established by the Government of Ontario, IESO fees and licences to operate are set by the Ontario Energy Board.

  • Going forward, media requests should be directed to the IESO media line: 416.506.2823 or  Alexandra Campbell is the IESO spokesperson.
  • A number of online and social media properties have been amalgamated: visit or follow the IESO on Twitter @IESO_Tweets.
  • General inquiries about the IESO can be forwarded to Customer Relations at 905.403.6900 or customer  More detailed contact information is available on the IESO site at