Background

The Electric Utilities Act (EUA) requires the AESO to submit a tariff for AUC approval. The AUC has directed the AESO to refile its Bulk & Regional Tariff Design by January 31, 2027. Parties are encouraged to review documents from AUC Proceeding 26911, the last Bulk & regional Tariff application, with a particular emphasis on the Commission's decision and parties' evidentiary submissions.

With respect to Rate DOS, parties are encouraged to review Decision 28989-D02-2024.

Given recent amendments to the EUA, anticipated updates to the government’s Transmission Regulation, and the ongoing grid transformation, a fulsome review of Rate DTS is necessary. The AESO expects that revisions to the tariff will need to incorporate these new policy directions, recover the AESO's revenue requirements, and adhere to other rate design principles and strategic objectives to the greatest extent possible.