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.

Engagement Materials

Cypress Substation Upgrade

Cypress Substation Upgrade Amendment to the Southern Alberta Transmission Reinforcement Approval - Stakeholder Update [Posted: April 28, 2015]
Amendment to the Cypress Substation upgrade in the Southern Alberta Transmission Reinforcement Needs Identification Document Approval [Posted: May 30, 2014]

Stage III

Notification of Regulatory Filing [Posted: November 25, 2013]
Southern Alberta Transmission Reinforcement Stage III Cancellation [Posted: November 18, 2013]

Stakeholder Update

Southern Alberta Transmission Reinforcement Stakeholder Update – May 2014 [Posted: June 9, 2014]
Southern Alberta Transmission Reinforcement Stakeholder Update [Posted: August 23, 2013]

Blackie 138 kV Upgrades

Notification of Regulatory Filing [Posted: July 23, 2014]
Amendment to the Blackie 138 kV Upgrades in the Southern Alberta Transmission Reinforcement Needs Identification Document Approval [Posted: October 18, 2013]

Picture Butte to Journault

Update to the Southern Alberta Transmission Reinforcement Proposed Development Area [Posted: June 5, 2012]

Goose Lake to Journault

Update to the Southern Alberta Transmission Reinforcement Proposed Development Area [Posted: May 8, 2012]

Goose Lake to Chapel Rock

Project Update November 2012 [Posted: November 28, 2012]
Notification of Regulatory Filing [Posted: November 27, 2012]
Open House Invitation - November 20 [Posted: November 6, 2012]
Open House Letter [Posted: November 6, 2012]
Open House Letter - Lundbreck [Posted: November 6, 2012]
Open House Letter - Hillcrest Mines [Posted: November 6, 2012]
Notification of AESO Regulatory Filing of an Amendment to the Southern Alberta Transmission Reinforcement Needs Identification Document Approval U2011-115 [Posted: October 9, 2012]
Project Update Newsletter October 2012 [Posted: October 1, 2012]
Project Update Newsletter August 2012 [Posted: September 28, 2012]
Southern Alberta Transmission Reinforcement Backgrounder - Proposed Amendment to the Needs Identification Document Approval [Posted: June 30, 2011]

Windy Flats

Southern Alberta Transmission Reinforcement Windy Flats 138S Substation Amendment Notification Regulatory of Filing [Posted: August 29, 2012]
Southern Alberta Transmission Reinforcement Windy Flats 138S Substation Amendment Need Overview [Posted: November 14, 2011]