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.

    Library

    This Library is a central repository for AESO resources including:

    For Corporate & Planning Reports and Fact Sheets, click the title to download the PDF. Click the page link to see past editions and related information.

    Corporate & Planning Reports

    Title Date Page
    Guide to AESO Connection Requirements for Transmission-Connected Data Centre 2026/06/12 Large Load Projects
    2025 Annual Market Statistics Report 2026/03/11 Annual Market Statistics Reports
    2026 Optimal Transmission Planning Framework 2026/01/30 Optimal Transmission Planning
    2026 Business Plan and Budget Proposal 2025/11/17 2026 Budget Development Process
    2026 BDP AESO Board Decision 2026/01/12 2026 Budget Development Process
    Restructured Energy Market Final Design 2025/08/27 Restructured Energy Market
    2025 Reliability Requirements Roadmap 2025/08/15 Reliability Requirements Roadmap
    Distributed Energy Resources
    Primary Frequency Response Guideline    		 2025/04/30 DER Roadmap Integration Papers

    2024 Annual Report

    - 2024 AESO Annual Report (Year in Review and Financial Results) (PDF)

    		 2025/04/30 Financial Reporting

    2024 Annual Market Statistics Report
    - Annual Market Statistics Data File

    		 2025/03/13 Annual Market Statistics Reports

    2025 AESO Board Decision

    		 2025/01/25

    2025 Budget Development Process
    2025 Long-Term Transmission Plan 2025/01/31  Long-Term Transmission Plan
    2025 Business Plan and Budget Proposal 2024/11/19 Business Planning

    2024 Long-Term Outlook

    - 2024 Long-Term Outlook
    - Data File (CSV)
    - Data File (Power BI)

    		 2024/05/15 2024 Long-Term Outlook
    2023 Annual Report

    - 2023 AESO Year in Review (PDF)
    - 2023 AESO Year in Review (Interactive)
    - 2023 Financial Results    		  2024/04/30  Financial Reporting

    AESO Restructured Energy Market Recommendation to the Minister of Affordability and Utilities

    		 2024/03/11 AESO Engage: Market Pathways

    2023 Annual Market Statistics Report
    - Annual Market Statistics Data File

    		 2024/03/08 Annual Market Statistics Reports
    Connection Requirements for Inverter-Based Resources (IBRs) 2024/02/23 Reliability Requirements Roadmap
    DERs | Anti-Islanding Screening and Study Guideline 2023/12/06 DER Roadmap Integration Papers
    2024 Budget AESO Board Decision 2024/01/31 Business Planning
    2024 Business Plan and Budget Proposal 2023/11/08 Business Planning
    AESO Preliminary CER Submission for ECCC 2023/11/02 Forecasting Insights (AESO Engage)
    Transmission System Utilization Report 2023/09/08 Transmission Utilization Map
    2022 Annual Report

    - 2022 AESO Year in Review
    - 2022 Financial Results    		 2023/04/28 Financial Reporting
    AESO 2023 Reliability Requirements Roadmap 2023/03/10 Reliability Requirements Roadmap
    2023 Budget Board Decision 2023/03/10 Business Planning
    2023 Business Plan and Budget 2023/03/10 Business Planning

    2022 Annual Market Statistics Report
    - Annual market statistics data file

    		 2023/03/07 Annual market statistics reports
    DERs | Effective Grounding Paper 2022/03/31 DER Roadmap Integration Papers
    DERs | Commissioning and Testing Recommendations 2022/08/17 DER Roadmap Integration Papers
    AESO Net-Zero Emissions Pathways Report 2022/07/07 Net-Zero Emissions Pathways
    AESO Net-Zero Emissions Pathways Dashboard 2022/06/27 Net-Zero Emissions Pathways
    2022 System Flexibility Assessment 2022/06/09 System Flexibility Assessment
    2022 System Flexibility Assessment Report Dashboard  2022/06/09 System Flexibility Assessment
    DERs | Ride-Through Performance Recommendations  2022/06/02 DER Roadmap Integration Papers
    2021 Annual Report
    - 2021 AESO Year-in-review
    - 2021 Financial Results    		 2022/04/26 Financial Reporting
    2022 Long-Term Transmission Plan 2022/01/31  Long-Term Transmission Plan
    2022 Business Plan and Budget 2022/01/24 Business Planning
    2022 Strategic Plan 2022/01/01 2022 Strategic Plan
    Quarterly Stakeholder Reports (Q4 2021) 2021/12/31  Financial Reporting
    2021 Technology Forward Publication 2021/11/30  Technology Integration
    2021 Long-term Outlook Highlights 2021/07/15 Forecasting » AESO 
    2021 Long-term Outlook 2021/06/29  Forecasting » AESO 
    TxDx | Transmission/Distribution Coordinated Planning Framework 2021/03/31  Transmission/Distribution (Tx/Dx) Coordinated Planning Framework
    TxDx | Distribution Facility Owner Connection Projects Decision-making Framework  2021/03/31  Transmission/Distribution (Tx/Dx) Coordinated Planning Framework
    DERs | Small Distributed Energy Resources Market Participation Draft Recommendation 2021/02/17  Distributed Energy Resources Markets Participation
    ES | Long-term Energy Storage Market Participation Draft Recommendation 2021/02/17  Distributed Energy Resources Markets Participation
    2020 System Flexibility Assessment 2020/07/21  System flexibility assessment
    DERs | Distributed Energy Resources Roadmap 2020/06/09 DER Roadmap Integration Papers
    Delivered Cost of Electricity Report 2020/06/01 Delivered cost of electricity
    ES | Energy Storage Roadmap 2019/09/07 Energy Storage
    Dispatchable Renewables and Energy Storage 2018/05/31  Energy Storage 
    MSSC Impacts on Alberta Balancing Authority Area Operation | Observations & Information Sharing 2015/06/01  Grid operations 

    Back to top

    Government of Alberta Direction Letters

    Title

    Date

    Confirmation of REM ISO Rule Approval

    2026/03/12

    Intertie Engagement, MATL Restoration and Ancillary Services to Support MATL and AB-BC Imports (October 2025)

    2025/10/14

    Incumbency Recognition and GUOC Refund Implementation (October 2025)

    2025/10/06

    REM Congestion Management and Incumbent Treatment (July 2025)

    2025/07/15

    REM and Transmission Policy Update (December 2024)

    2024/12/10

    REM, Cost Allocation and Optimal Transmission Planning (July 2024)

    2024/07/03

    REM Design and Interim Market Power Mitigation Regulations (March 2024)

    2024/03/11

    Back to top

    Fact Sheets

    Title Page
    2022 Transmission Rate Projection Transmission costs
    Overview of the Alberta Grid  
    Electricity in Alberta  
    How the Pool Price is Determined  
    Planning a Safe & Reliable Grid  
    The Basics of Electricity Transmission  

    Back to top

    Maps & Data Portals

    Title Page
    AIES Map About the Grid
    Annual Market Statistics Reports Annual Market Statistics Data File
    Congestion Portal Congestion Portal
    Connection Project List Dashboard Connection project reporting
    Connection Project Map (Interactive) Connection project reporting
    Current Supply & Demand Data Portal  
    Data Centre Projects Map Large Load Projects
    Transmission Capability Map (Interactive) Transmission Capability Map
    Transmission Planning Areas Map Planning Area Boundary Data
    Transmission System/Wildfires Status  

    Back to top

    Resources

    Pages Videos
    Alberta's Electric System Operating Alberta's Electric Grid
    Planning Alberta’s electricity transmission system  
    How The Alberta Electricity Market Works  
    Electricity in Alberta  
    Grid Alerts & Electricity Conservation  
    About the grid  
    Understanding the Market  

    Back to top

    Library