Restructured Energy Market ISO Rules Regulation

(no amdt) ALBERTA REGULATION 51/2026 Electric Utilities Act RESTRUCTURED ENERGY MARKET ISO RULES REGULATION Table of Contents 1 Definitions 2 Adoption of REM ISO Rules 3 Administration 4 Amendment of REM ISO Rules 5 Conflict with ISO rules 6 Rescission of ISO rules 7 Publication 8 Market transition error 9 Phased coming into force 10 Non‑application of complaint provisions Definitions 1 In this Regulation, “REM ISO Rules” means the document titled Restructured Energy Market ISO Rules , published by the Alberta Electric System Operator, as amended or replaced from time to time. Adoption of REM ISO Rules 2 The REM ISO Rules are adopted by reference as rules established under section 20.01 of the Act. Administration 3 (1) The Independent System Operator is responsible for administering the REM ISO Rules. (2) Administering the REM ISO Rules includes (a) interpreting and applying the REM ISO Rules, (b) managing the process for maintaining and updating the REM ISO Rules in accordance with this Regulation, and (c) performing any other duties assigned to the Independent System Operator under the Act or this Regulation. Amendment of REM ISO Rules 4 (1) The Independent System Operator may propose an amendment to the REM ISO Rules in accordance with this section. (2) A proposed amendment must be submitted to the Minister in a form and manner acceptable to the Minister. (3) Before submitting the proposed amendment, the Independent System Operator must carry out stakeholder engagement in accordance with the stakeholder engagement process established by the Commission in its rules under section 20.9 of the Act. (4) Despite subsection (3), the Independent System Operator may submit a proposed amendment without carrying out stakeholder engagement if, in the opinion of the Independent System Operator and the Minister, the amendment is required to address an urgent need. (5) A proposed amendment has no force or effect until it is approved by the Minister. (6) Once an amendment is approved by the Minister, the Independent System Operator must publish the amendment in accordance with section 7. (7) Subject to section 9, a published amendment takes effect on the date of publication. Conflict with ISO rules 5 (1) If an ISO rule made under section 19 or 20 of the Act conflicts with a provision of the REM ISO Rules, the REM ISO Rules prevail. (2) To resolve a conflict described in subsection (1), the Independent System Operator may, with the Minister’s approval, (a) amend the ISO rule to the extent of the conflict, or (b) rescind the ISO rule, in whole or in part. Rescission of ISO rules 6 (1) The Independent System Operator may, with the approval of the Minister, rescind an ISO rule made under section 19 or 20 of the Act if, in the opinion of the Independent System Operator, the ISO rule is inconsistent with the REM ISO Rules, including where the ISO rule is not applicable to the operation of the restructured energy market. (2) The rescission may be made in whole or in part. Publication 7 (1) The Independent System Operator must, as soon as practicable after the Minister’s approval under section 4, publish on its website the REM ISO Rules, including any amendments approved by the Minister. (2) Before an amendment to the REM ISO Rules comes into force, the Independent System Operator must publish on its website a notice stating the date on which the amendment comes into force. Market transition error 8 (1) In this section, “market transition error” means a situation in which the restructured energy market cannot operate due to (a) a software, hardware or communication system failure, or (b) any other circumstance that prevents the restructured energy market from operating normally. (2) If the Independent System Operator determines that a market transition error is caused by a circumstance described in subsection (1)(a) and cannot be remedied within a reasonable amount of time, the Independent System Operator may suspend the application of all or part of the REM ISO Rules. (3) If the Independent System Operator suspends the application of the REM ISO Rules under subsection (2), the Independent System Operator must, immediately after declaring the suspension, notify the Minister and market participants of (a) the reason for the declaration, and (b) the Independent System Operator’s plan to restore the operation of the REM ISO Rules. (4) If the Independent System Operator determines that a market transition error is caused by a circumstance described in subsection (1)(b), the Independent System Operator must request the Minister’s approval before suspending the application of all or part of the REM ISO Rules. (5) The request must include (a) the reason for the request, and (b) the Independent System Operator’s plan to restore the operation of the REM ISO Rules. (6) When the Independent System Operator suspends the application of all or part of the REM ISO Rules under subsection (2) or (4), it must apply, to the extent necessary, the ISO rules that were in force immediately before the REM ISO Rules came into force. (7) The Independent System Operator must notify the Minister and market participants when the market transition error has been remedied and the restructured energy market has resumed operations. (8) The Minister may, by order, direct the Independent System Operator to end a suspension under this section and to reinstate the application of the REM ISO Rules. Phased coming into force 9 (1) A provision of the REM ISO Rules identified in the Rules as subject to phased commencement has no force or effect until the Independent System Operator, by notice published on its website, fixes the day on which the provision comes into force. (2) If the application of the REM ISO Rules is suspended under section 8, the Independent System Operator may, following restoration of the restructured energy market, reinstate provisions of the REM ISO Rules in accordance with subsection (1) and must publish notice of the reinstatement on its website. Non‑application of complaint provisions 10 Sections 25 and 26 of the Act do not apply to the REM ISO Rules.