Ontario Electricity System Participants

The following entities form the core of the Ontario Electricity System.

Government Regulators

 Ontario Energy Board
www.oeb.gov.on.ca
Regulates the province’s electricity and natural gas sectors in the public interest.
  Ontario Power Authority
www.powerauthority.on.ca
Responsible for ensuring a sustainable, competitive and reliable electricity system for the benefit of Ontario consumers.

Electricity Generators

 Ontario Power Generation
www.opg.com
OPG consists of most of the power generation assets of the former Ontario Hydro and is one of the largest power generators in North America.
  Bruce Power
www.brucepower.com
Bruce Power is a private corporation which produces approximately 20% of Ontario's electricity. Bruce Power leases its main generation assets, the Bruce nuclear facilities, from OPG.

Electricity Transmission & Distribution

 Hydro One
www.hydroone.com
Hydro One is primarily responsible for electricity transmission across Ontario and is also the local distribution utility for much of rural Ontario. Most urban centres and highly populated areas are serviced by one of the Local Hydro Utilities listed elsewhere in the site.

Electricity System Dispatch

 Independent Electricity System Operator (IESO)
www.ieso.ca
The IESO balances the supply of and demand for electricity in Ontario and then directs its flow across the province's transmission lines.

Electrical Safety

 Electrical Safety Authority
www.esasafe.com
The Electrical Safety Authority is responsible for public electrical safety in Ontario.

Electricity Financial

 Ontario Electricity Financial Corporation
www.oefc.on.ca
The OEFC is primarily responsible for managing the debt retirement of the former Ontario Hydro.