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ARTICLE · 13 MAY 2026

IESO's Long Lead-Time Request For Proposals: From Engagement To Active Procurement

In our article of March 31, 2026, we reported on the Independent Electricity System Operator’s (IESO) fourth stakeholder engagement session regarding its Long Lead-Time Request for Proposals (the LLT RFP).

CanadaEnergy and Natural Resources

In our article of March 31, 2026, we reported on the Independent Electricity System Operator’s (IESO) fourth stakeholder engagement session regarding its Long Lead-Time Request for Proposals (the LLT RFP). At that time, the IESO had released draft RFP documents and contracts for both the energy and capacity streams, and was awaiting a ministerial directive to formally launch the procurement.

Since that publication, the LLT RFP has transitioned from the engagement and draft phase to an active procurement. Final documents for both the LLT(e) and LLT(c) RFPs have now been posted, the procurement processes are underway, and the communications restrictions under the RFPs are in effect. We summarize the key developments and provide updated guidance for proponents.

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The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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