- Foothills Area Transmission Development
High River and Okotoks Transmission Project
The routes in this map represent potential route options. If the project is approved, only one line will be built.
Project overview
AltaLink is currently completing public consultation for this project and wants your input to identify the lowest overall impact location for the proposed new transmission line and upgrades to existing transmission lines and substations.
The High River and Okotoks Transmission Project is part of an area transmission development called the Foothills Area Transmission Development (FATD). This development includes new transmission lines and upgrades to the electric system in Calgary and the communities south and east of the city. The majority of the transmission system in the area was built in 1985, since that time the population and industry has grown substantially. These projects will ensure power from new generation plants, including wind power from southern Alberta, is connected to Alberta's electric grid and maintain a reliable supply of electricity to support the growth and demand in this area.
Project details
The proposed project includes:
- building approximately 15 kilometres (nine miles) of new double circuit 138 kV (138,000 volts) transmission line, from the proposed Foothills Substation (located east of High River) to the existing High River Substation (located north of High River)
- building approximately 800 metres (half a mile) of new double circuit 138 kV transmission line to connect the existing 911L transmission line to the existing Okotoks Substation
- building a segment of new single circuit transmission line to connect the 727L tranmission line to the existing 911L tranmission line
- rebuilding approximately seven kilometres (four miles) of the existing 727L transmission line from single to double circuit
- decreasing the voltage on a segment of the existing 911L transmission line
- adding new 138 kV equipment to the proposed Foothills Substation, and to the existing High River and Okotoks substation
Anticipated project schedule
Althought we attempt to follow the anticipated project schedule, it is subject to change. We will continue to provide you with updated schedule information as the project progresses.
| Project schedule | |
|---|---|
| Winter/spring 2012 | File application with the Alberta Utilities Commission (AUC) |
| Spring 2013 | Start construction if project is approved |
| Winter 2015 | Complete construction |
Newsletters and maps
February 2012
- Newsletter, Volume 2, (Click here to download the printable version)
Detail base map / Detail photo map
Foothills Area Transmission Development Overview Map
November 2011
- Open house information panels (Click here to download the printable version)
October 2011
- About AltaLink Transmission Projects
- Alberta Project Map
- All Current Projects
- Featured Area Developments
- Overview
- Northern Alberta Transmission Projects
- Central Alberta Transmission Projects
- Southern Alberta Transmission Projects
- Foothills Area Transmission Development
- Southern Alberta Transmission Reinforcement
- Overview
- Blackie Area 138 kV Line Re-configuration
- Bowmanton to Whitla Transmission Project
- Cassils to Bowmanton Transmission Project
- Castle Rock Ridge Wind Farm Connection
- Cypress Substation Upgrade
- Etzikom Coulee to Whitla Transmission Project
- Fidler Substation and Transmission Line
- Fidler to Chapel Rock Transmission Project
- Goose Lake to Etzikom Coulee Transmission Project
- Medicine Hat 138 kV Transmission Project
- Picture Butte to Etzikom Coulee Transmission Project
- South Foothills Transmission Project
- Windy Flats 138 kV Line Re-configuration
recording devices, are a large drain on the power system. Some home entertainment configurations use more power than a new refrigerator.
