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    Updated Cluster 3 Key Dates and Timeline

    The AESO has extended the Cluster 3 System Access Service Request (SASR) submission deadline from April 30 to August 6, 2026.

    This extension is required to better align the Cluster 3 SASR submission deadline with the timelines for Phase 2A of the Large Load Integration Program and the Fast Frequency Response+ (FFR+) Procurement.

    Visit AESO Engage for more information on Phase 2A of the Large Load Integration Program and the FFR+ Procurement. 

    To view the revised key dates and expected timeline for Cluster 3, please visit the Cluster Assessment page. Cluster timelines are forecasts and are subject to change as more information becomes available.

    Updated Cluster 3 Key Dates and Timeline