ISO Rule Proposals
Section 20.81 of the Electric Utilities Act requires the AESO to establish a process for market participants and interested parties to propose rules and changes to ISO rules, including amendments and removals, for the AESO’s consideration.
The process is as follows:
- a proponent completes and submits the ISO Rule Proposal form to propose a new ISO rule, an amendment to an existing ISO rule, or the removal of an existing ISO rule.
- The AESO may request additional information from the proponent to better understand the proposal or to "determine the proponent's interest" with respect to the proposed rule changes(s) which may include the collection of personal or business information.
- If the AESO determines that the proponent has an interest:
- the ISO rule proposal submitted form and any related information will be published on the AESO website.
- The AESO will consider the submitted ISO rule proposal and may request additional information from a proponent regarding the same.
- The AESO will determine whether the submitted ISO rule proposal requires amendment to or the development of a proposed ISO rule(s).
- The AESO will notify the proponent and publish its determination on the AESO website.
If the AESO determines that an ISO rule proposal requires the development of a proposed ISO rule, then the rule will be developed in accordance with Alberta Utilities Commission Rule 017, Procedures and Process for Development of ISO Rules and filing of ISO Rules. For information about ISO rules under development, visit AESO Engage.
If you have any questions, please contact ruleproposals@aeso.ca.
Submit a Proposal
To propose a new ISO rule, an amendment to an existing ISO rule, or the removal of an existing ISO rule, complete the ISO Rule Proposal Form.
Please review ID #2019-001 ISO Rule Proposals before submitting an ISO rule proposal.
Find a Proposal
ISO rule proposals and related information, including AESO determinations are published here.
- Date:
- Aug. 26, 2026
- Status:
- Completed
- Title:
- Proposal to amend Section 201.6
- Proponent:
- ATCO EnPower, Capital Power Corporation, ENMAX Energy Corporation, Heartland Generation, Suncor Energy Marketing Inc. and TC Energy
- Proposal Type:
-
- Amendment
- Date:
- May. 13, 2026
- Status:
- Completed
- Title:
- Proposal to amend ISO rules related to transmission constraint rebalancing
- Proponent:
- ATCO EnPower, Capital Power Corporation, Kineticor and Maxim Power Corp.
- Date:
- Sep. 18, 2025
- Status:
- Completed
- Title:
- Proposal to amend Section 503.6
- Proponent:
- TransAlta
- Proposal Type:
-
- Amendment
- Date:
- May. 30, 2025
- Status:
- Completed
- Title:
- Proposal to amend Section 503.18
- Proponent:
- Enfinite
- Proposal Type:
-
- Amendment
- Date:
- Jun. 2, 2023
- Status:
- Under Review
- Title:
- Proposal to amend Section 202.5 and Section 302.1
- Proponent:
- MATL Canada G.P. Inc.
- Proposal Type:
-
- Amendment
- Date:
- Aug. 3, 2022
- Status:
- Withdrawn
- Title:
- Proposal to amend Section 205.6
- Proponent:
- Voltus Energy Canada, Ltd.
- Proposal Type:
-
- Amendment
- Date:
- Jun. 2, 2022
- Status:
- Completed
- Title:
- Proposal to amend Section 306.4
- Proponent:
- Suncor Energy Inc.
- Proposal Type:
-
- Amendment
- Date:
- Feb. 28, 2022
- Status:
- Under Review
- Title:
- Proposal to amend the definitions of “maximum capability” and “acceptable operating reason"
- Proponent:
- Suncor Energy Marketing Inc.
- Proposal Type:
-
- Amendment
- Date:
- Feb. 28, 2022
- Status:
- Under Review
- Title:
- Proposal to amend ISO rules to allow for priced intertie transactions
- Proponent:
- Suncor Energy Marketing Inc.
- Proposal Type:
-
- Amendment
- Date:
- Jun. 21, 2021
- Status:
- Under Review
- Title:
- Proposal for a new ISO rule relating to long lead time reporting
- Proponent:
- IPCAA
- Proposal Type:
-
- New ISO Rule
- Date:
- Jan. 16, 2020
- Status:
- Under Review
- Title:
- Proposal to amend Section 203.6
- Proponent:
- Market Surveillance Administrator ("MSA")
- Proposal Type:
-
- Amendment
- Date:
- Dec. 13, 2018
- Status:
- Completed
- Title:
- Proposal to amend Section 203.3 and Section 203.6
- Proponent:
- Morgan Stanley Capital Group Inc. (“MSCG”)
- Proposal Type:
-
- Amendment