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Connecting Today.
Powering Tomorrow.

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.

Long-Term 1 RFP

The IESO’s LT1 RFP has successfully acquired the additional resources needed to meet Ontario’s electricity needs this decade. The procurement has resulted in competitive prices of new resources, strong community support, and significant Indigenous participation and equity ownership in projects.

LT1 RFP Updates

Resource Adequacy Update - May 2024

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2024 Annual Planning Outlook

The IESO’s 2024 Annual Planning Outlook identifies system needs and planned actions from 2025 to 2050 that are needed to ensure the reliability, affordability and sustainability of Ontario’s electricity system. With significant progress being made to address these needs, the IESO is also providing an update of its emissions forecast for the sector. See Six Graphs and a Map from the 2024 APO and an Emissions Update.

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Stakeholder Engagement Meetings

The agenda for the July 23-25 stakeholder engagement meetings is now available.

Meeting materials and recorded presentations for the June stakeholder engagement meetings are also posted.