Your browser is no longer supported

To get the best experience with, we suggest using a newer version of Internet Explorer/Edge, or using another supported browser such as Google Chrome.

ETS users may continue to log in using Internet Explorer 9 using the upper right hand link marked ETS Login.

    View all stakeholder engagements

    New Section 502.11 of the ISO rules, Substation Technical and Operating Requirements

    Stakeholder Engagement Update June 2021

    In November 2018, the AESO initiated consultation on the proposed development of an ISO rule that would set out the minimum technical requirements for the design, construction, and operation of transmission substations that are directly connected to the Alberta transmission system. That proposed development has been on hold due to other priorities. The AESO continues to assess the priority of the development of an ISO rule related to technical requirements for substations and will re-engage with stakeholders when it determines that it is appropriate to move forward with this initiative.