Independent Electricity System Operator (IESO) Email Format

UtilitiesOntario, Canada1001-5000 Employees

The Independent Electricity System Operator oversees Ontario's electricity system, ensuring the grid operates in real time and planning addresses future demand. It draws on a broad mix of professionals—from engineering and business to information technology, law and social sciences—to run these tasks. The organization is based in Toronto, in the province of Ontario, and functions within the utilities sector to serve the province.

In addition to operations, IESO pursues capacity and infrastructure planning to align with forecasted needs. A notable development in June 2026 was the awarding of a 20-year capacity contract to Neoen and Eagle Lake First Nation under the Long-Term 2 Capacity Services procurement.

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