Home » Contact Data Provider

Independent Electricity System Operator

The Independent Electricity System Operator (IESO) works at the heart of Ontario's power system. The IESO delivers key services across the electricity sector including: managing the power system in real-time, planning for the province's future energy needs, enabling conservation and designing a more efficient electricity marketplace to support sector evolution. The IESO ensures the reliability of the province’s power system, balancing the supply of and demand for electricity on a second-by-second basis and directing its flow across high-voltage transmission lines so it’s available to Ontarians when and where they need it. The IESO operates and settles the wholesale electricity markets, where the market price is set based on accepted offers to supply electricity against the forecasted demand. The IESO works to ensure that the information and services it provides support the effective participation of a growing range of market participants, including consumers. For more information, visit http://www.ieso.ca/