Proposed route options
Factors in route selection
During the process of determining potential routes, we take the following factors into consideration in an effort to find routes with lower levels of overall impact:
- Local stakeholders
- Special constraints
- Existing infrastructure
Only one transmission line will be built
As shown on the map below, we are considering a number of potential route options. We identified these route options because they generally follow existing linear disturbances such as roadways and existing overhead distribution utility lines.
After receiving input from stakeholders and collectively considering the factors above, we will submit a Facility Application to the Alberta Utilities Commission (AUC) that identifies a preferred route and any potential alternative routes for their review and consideration for approval. If the project is approved, the AUC will select 1 route for construction between the Strathcona and Dome substations.
At this point, no preferred route has been selected. Preliminary routing scenarios have only been developed to facilitate stakeholder input, which will be an important factor in identifying the preferred route.
Only one route will be built. The map shows route options currently under consideration, and in certain portions, options for building on one side of the road or the other. These route options will be refined based on public consultation.
Dome substation upgrades
The proposed transmission line will begin at the Strathcona substation and end at the Dome substation. To accommodate the proposed transmission line, upgrades are needed at the Dome substation.
These proposed upgrades include adding:
- one 240 kV/72 kV transformer
- one 240 kV circuit breaker with associated
- disconnect switches
- one 72 kV circuit breaker with associated disconnect switches
In order to install the new equipment, the fence will need to be expanded by approximately 7 metres by 6 meters on the east and south sides of the substation. The new section of fence will match the existing fence.
Click image for larger view of map.