What's Next?
The AESO will continue working with stakeholders to support implementation:
- Fall 2025: Engagement on ISO rules and operational details, while continuing to progress Optimal Transmission Planning
- Mid-2027: Implementation of the Restructured Energy Market design begins
The transition will be carefully managed to ensure industry readiness and minimize disruption.
INDUSTRY PERSPECTIVES
We thank the AESO for its extensive engagement with industry stakeholders in shaping the new REM design. The consultation process was open, collaborative, and constructive, ensuring that a broad range of perspectives were considered. We look forward to reviewing the details of the REM and to continued engagement with the AESO as the focus shifts to rule development and implementation of the new market.
Mark Poweska, President and CEO
ENMAX
ISO REM Rules
The ISO rules to enact the Restructured Energy Market (REM ISO rules) will be approved via Ministerial regulation. The AESO intends to submit the REM ISO rules to the Minister of Affordability and Utilities for approval before the end of 2025. Engagement on the draft REM ISO rules begins in September 2025.
Optimal Transmission Planning
Starting in 2024, the AESO began consultations on transitioning from a zero-congestion transmission planning standard to a new standard based on Optimal Transmission Planning (OTP). The OTP engagement will continue through the end of 2025. The AESO plans to file OTP rules with the Alberta Utilities Commission in 2026.
To participate in the OTP engagement process, please visit the AESO Engage page.
