This portal shows how new connection projects may impact transmission line congestion. It provides congestion data and geographic context to support market participants in making informed decisions about their connection project’s size and location. Lines on the map are colour-coded to show the percentage of time they experience congestion. Click on a specific line to see detailed information about congestion frequency and congested energy.

 **Please note: The portal forecasts congestion based on N-0 thermal facility rating constraints. Other constraints may increase potential congestion. **

Geographic data layers are also included to provide additional context to assist in project siting. Use the map widgets to toggle layer visibility, search for locations or facilities, measure distances, or change the underlying base map.

The following additional resources are included:

• Congestion Portal Methodology
• Congestion Portal Assumptions
• User Guide
• FAQ

Source Information

This map and associated information were created using information from the AESO, the Government of Alberta, the Alberta Energy Regulator, the Alberta Utilities Commission, satellite imagery, OpenStreetMap (available under the Open Database License) and Altalis (licensed under the Open Government License – Alberta) and are intended only for research purposes. This map and associated information may not be copied or disseminated by third parties without the express written permission of the AESO.

Disclaimer

The AESO makes no representations, warranties, or guarantees, express or implied as to the accuracy, reliability, completeness, currency, or non-infringement of the map and associated information or that it will be suitable for any use. While the AESO has made every attempt to ensure that the information is timely and accurate, the AESO accepts no responsibility whatsoever for any inaccuracy, error, or omission in the map and associated information. The AESO is not responsible for any losses or costs incurred by you or anyone else as a result of the use, conversion, publication, transmission, installation, or improvements to the portal and associated information, even if such losses or costs are foreseeable.

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