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Overview

The Alberta Electric System Operator (AESO) identified the need to reinforce the transmission system in southern Alberta. Alberta’s electric system needs more capacity to make room for power generated from new wind farm projects proposed throughout southern Alberta. New transmission lines and substations are required to support this growth and collectively these projects make up the Southern Alberta Transmission Reinforcement (SATR).

The AESO filed the need for the SATR in a formal application known as a Needs Identification Document (NID) with the Alberta Utilities Commission (AUC) in December 2008. The AUC is a quasi-judicial agency established by the Alberta government that ensures the fair and responsible delivery of our utility services. The AUC completed a public hearing in Lethbridge to review the need for these projects on June 22, 2009. The AUC approved the need on September 8, 2009.

To learn more about the need for this area development, please visit the AESO website.

Click here for more information on the Southern Alberta Transmission Reinforcement.

Current SATR projects include the following:

• South Foothills Transmission Project
• Cassils to Bowmanton Transmission Project
• Bowmanton to Whitla Transmission Project
• Medicine Hat 138 kV Transmission Project
• Picture Butte to Etzikom Coulee Transmission Project
• Etzikom Coulee to Whitla Transmission Project
• Blackie 138 kV Line Re-configuration
• Windy Flats 138 kV Line Re-configuration
• Cypress Substation Upgrade
• Fidler to Chapel Rock Transmission Project
• Castle Rock Ridge Wind Farm Connection
• Fidler Substation and Transmission Line

Other related projects in southern Alberta include the following:

• East Palliser Transmission Project
• East HVDC Converter Station - North
• East HVDC Converter Station - South
• Wild Steer Butte Wind Power Facility Interconnection Project