Independent Electricity System Operator: Difference between revisions

Revision as of 15:42, 29 May 2025

Latest revision as of 16:06, 29 May 2025

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The '''Independent Electricity System Operator''' ('''IESO,''' {{Langx|fr|Société indépendante d'exploitation du réseau d'électricité}}, SIERE) is the [[Crown corporations of Canada|Crown corporation]] responsible for operating the [[electricity market]] and directing the operation of the [[electrical system|bulk electrical system]] in the province of [[Ontario]], Canada. It is one of seven [[independent system operator]]s in [[North America]].

The IESO was established in April 1999 as the '''Independent Electricity Market Operator''' ('''IMO''') under the [[government of Ontario]] during the premiership of [[Mike Harris]] in preparation for [[deregulation]] of the province's electrical supply and transmission system. As part of government plans to [[privatize]] the assets of [[Ontario Hydro]], the utility was split into five separate Crown corporations with the IMO responsible for directing the flow of electricity across the high-voltage, province-wide network owned by [[Hydro One]] and other transmission companies. It was also given the responsibility of managing and operating the competitive wholesale electricity market and working with neighbouring jurisdictions to manage an integrated North American electricity network.