Deadline

The AESO is proposing amendments to ID #2012-006R, Adequacy, Supply Shortfall and Energy Emergency Alerts (ID #2012-006R) to amend some of the variables used in the methodologies that the AESO relies upon to assess and report on the long-term adequacy of supply under subsection 4 of Section 202.6 of the ISO rules, Adequacy of Supply. The methodologies and variables are set out in Appendix 3 of ID #2012-006R, Calculations and Methodologies regarding Supply Adequacy (“Appendix 3”). 

The AESO is providing Stakeholders with an opportunity to provide feedback on its proposed amendments to Appendix 3. A copy of the AESO’s proposed amendments to ID #2021-006R, together with the Letter of Notice, was posted on the AESO website on June 26, 2026. The comment period for Stakeholder feedback will remain open on AESO Engage until July 31, 2026.

Please visit the Amendments to ID #2012-006R, Adequacy, Supply Shortfall and Energy Emergency Alerts AESO Engage page for more information.