Your browser is no longer supported

To get the best experience with www.aeso.ca, 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

    Section 502.2

    Amended Section 502.2, Bulk Transmission Line Technical Requirements (“Section 502.2”)

    Notice

    On April 9, 2020, the AESO advised stakeholders that it is currently re-evaluating next steps related to this consultation and will inform them once a decision has been made.

    Purpose

    In the Letter of Notice for Development, the AESO states that the objectives of the development of amendments to Section 502.2 are to clarify the minimum requirements for the design, construction and operation of bulk transmission lines and, in some cases, reduce the minimum requirements, which will provide certain alternative options and allow more opportunity to drive down costs.

    Background

    Over the last number of years, the Transmission Facilities Cost Monitoring Committee (“TFCMC”) began asking questions regarding the requirements within the current Section 502.2 and cost implications. The AESO formed a Technical Work Group (“TWG”) and engaged an independent transmission line expert to review the issues. The TWG explored opportunities to reduce costs, which are being added to projects under the requirements of the existing current Section 502.2, and to clarify technical requirements while maintaining system reliability.

    In addition, the independent transmission line expert undertook a number of technical studies and produced reports which were provided to the TWG.