Rules, standards and tariff consultations

You’ll find more information about ongoing stakeholder engagement regarding ISO rules, Alberta reliability standards, or the ISO tariff, on this page.

Materials relating to stakeholder engagements that began two or more years ago may be removed from the AESO website. It’s not our standard practice to re-post or provide previous stakeholder engagement materials. We recommend that market participants maintain copies of posted stakeholder engagement materials if they wish to refer back to them in future.

Latest updates

Updated: Oct 20, 2020 | Posted: Feb 13, 2020 Bulk and Regional Tariff Design Category: Tariff

Updated: Oct 14, 2020 | Posted: Oct 14, 2020 Proposed Removal of Section 305.2 of the ISO Rules, Calgary Under Voltage Load Shed Category: ISO Rules

Updated: Oct 14, 2020 | Posted: Oct 14, 2020 Proposed Amendments to Section 306.7 of the ISO Rules, Mothball Outage Reporting Category: ISO Rules

Updated: Oct 05, 2020 | Posted: Oct 05, 2020 Proposed Removal of Operating Policies and Procedures 601, Transmission Outages and Limit Changes Category: ISO Rules

Updated: Oct 02, 2020 | Posted: Aug 06, 2020 Proposed Amended Section 505.2, Performance Criteria for Refund of Generating Unit Owner’s Contribution Category: ISO Rules

Updated: Oct 02, 2020 | Posted: Jul 17, 2019 New Alberta reliability standard definitions 'radial circuit' and 'system access service' and amended 'bulk electric system' Category: Alberta Reliability Standards

Updated: Sep 17, 2020 | Posted: Jun 09, 2020 PRC-005-AB2-6 Protection System, Automatic Reclosing and Sudden Pressure Relaying Maintenance Category: Alberta Reliability Standards

Updated: Aug 26, 2020 | Posted: Oct 09, 2018 New Section 502.17 and Amendments to Section 502.4 of the ISO rules Category: ISO Rules

Updated: Aug 26, 2020 | Posted: Mar 19, 2019 New COM-001-AB-3, New COM-002-AB-4, Retirement of Existing COM-002-AB1-2a and COM-001-AB1-1.1 Category: Alberta Reliability Standards

Updated: Aug 21, 2020 | Posted: Aug 07, 2019 Proposed removal of OPP 804, Off-Nominal Frequency Load Shedding and Restoration Category: ISO Rules

Updated: Aug 21, 2020 | Posted: Feb 27, 2020 Proposed new, retirement of existing standards and to not adopt North American Electric Reliability Corporation (“NERC”) standard (collectively referred to as “spider web project”) Category: Alberta Reliability Standards

Updated: Aug 21, 2020 | Posted: Aug 08, 2019 Amended Section 305.1 of the ISO rules, Energy Emergency Alerts Category: ISO Rules

Updated: Aug 20, 2020 | Posted: Jul 13, 2020 Amended Section 502.9, Synchrophasor Measurement Unit Technical Requirements Category: ISO Rules

Updated: Jul 27, 2020 | Posted: Feb 06, 2020 Participant-Related Costs for DFOs (Substation Fraction) and DFO Cost Flow-Through Technical Session(s) Category: Tariff

Updated: Jun 30, 2020 | Posted: Oct 11, 2016 New Section 502.10 of the ISO rules, Revenue Metering Technical Requirements Category: ISO Rules

Updated: Jun 24, 2020 | Posted: Dec 02, 2019 Administrative Updates Category: ISO Rules

Updated: Jun 17, 2020 | Posted: Jun 01, 2020 Alberta Reliability Standards Stakeholder Session Category: Alberta Reliability Standards

Updated: Apr 09, 2020 | Posted: Jul 08, 2019 Amended Section 502.2, Bulk Transmission Line Technical Requirements (“Section 502.2”) Category: ISO Rules

Updated: Feb 25, 2020 | Posted: Nov 27, 2019 TCM Updates Category: ISO Rules

Updated: Feb 13, 2020 | Posted: Jul 25, 2018 Archive of 2018-2019 Tariff Design Advisory Group (TDAG) Category: Tariff

Updated: Dec 19, 2019 | Posted: Nov 26, 2019 Amendments to Section 203.1, Offers and Bids for Energy Category: ISO Rules

Updated: Dec 09, 2019 | Posted: Nov 25, 2016 New Section 502.11 of the ISO rules, Substation Technical and Operating Requirements Category: ISO Rules

Updated: Sep 11, 2019 | Posted: Dec 04, 2018 New Waivers and Variances Rule Category: ISO Rules

Updated: Jun 19, 2019 | Posted: Jun 18, 2019 BAL-003-AB-1.1, Frequency Response and Frequency Bias Setting (“amended BAL-003-AB1-1.1”) Category: Alberta Reliability Standards

Updated: Jun 19, 2019 | Posted: May 02, 2019 Proposed removal of reliability standard Definitions “real time” and “operational planning analysis Category: Alberta Reliability Standards

Updated: Jun 12, 2019 | Posted: Jun 12, 2019 New IRO standards, retirement of existing IRO standards, amend IRO-005-AB1-3.1a, not adopt not applicable standards and retirement of existing NA standards Category: Alberta Reliability Standards

Updated: Jun 03, 2019 | Posted: Jun 03, 2019 Notice of Resource Adequacy Model Technical Report and Data Filed in Proceeding 23757

Updated: May 30, 2019 | Posted: Nov 29, 2018 Proposed new PRC-025-AB-2, proposed new PRC-023-AB-4 and proposed retirement of existing PRC-023-AB-2 Category: Alberta Reliability Standards

Updated: May 29, 2019 | Posted: Jan 30, 2019 Amended PRC-005-AB1-6 Protection System, Automatic Reclosing and Sudden Pressure Relaying Maintenance Category: Alberta Reliability Standards

Updated: May 28, 2019 | Posted: Sep 29, 2016 New Section 502.7 of the ISO rules, Load Facility Technical Requirements Category: ISO Rules

Updated: Mar 19, 2019 | Posted: Dec 20, 2018 Notice of Amended List of Electrical and Physical Parameters for Transmission System Model Category: ISO Rules

Updated: Mar 14, 2019 | Posted: Oct 18, 2018 Proposed Amendments to Section 501.10 of the ISO Rules, Transmission Loss Factors Category: ISO Rules

Updated: Mar 12, 2019 | Posted: Nov 21, 2018 Proposed Amended Category 2 Rules Category: ISO Rules

Updated: Jan 30, 2019 | Posted: Feb 12, 2018 New Alberta Reliability Standard PRC-005-AB-6, Protection System, Automatic Reclosing, and Sudden Pressure Relaying Maintenance Category: Alberta Reliability Standards

Updated: Jan 30, 2019 | Posted: Apr 16, 2018 Amendments to ISO Rule Definition “acceptable operational reason” Category: ISO Rules

Updated: Jan 30, 2019 | Posted: May 17, 2018 2018 ISO tariff application Category: Tariff

Updated: Jan 30, 2019 | Posted: May 25, 2018 New CIP-014-AB-2 - Physical Security Category: Alberta Reliability Standards

Updated: Jan 30, 2019 | Posted: May 25, 2018 Removal of Section 501.2 - Security of Critical Facilities

Updated: Jan 30, 2019 | Posted: Sep 18, 2018 Proposed new PRC-002-AB-2 and retirement of existing PRC-018-AB-1 Category: Alberta Reliability Standards

Updated: Jan 30, 2019 | Posted: Oct 02, 2018 Information Session on the New ISO Rule Proposals Process

Updated: Jan 30, 2019 | Posted: Jan 17, 2019 New Alberta Reliability Standard Definition balancing contingency event Category: Alberta Reliability Standards

Updated: Jan 30, 2019 | Posted: Jan 10, 2019 New BAL-002-AB-3 and Removal of BAL-002-AB-1 Category: Alberta Reliability Standards

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