This Virtual Open House offers a variety of videos, presentations and other project-focused content.
Sunrise Expansion Program
Westcoast Energy Limited Partnership (Westcoast), an Enbridge affiliate, owns and operates British Columbia’s major natural gas transmission system referred to as the Westcoast Pipeline system.
This system transports processed natural gas to consumers throughout the province, Alberta and the U.S. Pacific Northwest.
This gas is ultimately used to heat homes, businesses, hospitals and schools. It is also used as a fuel for electric power generation and is a staple in many industrial and manufacturing processes.
To meet demand for natural gas, Westcoast is undertaking an expansion of the southern portion of its pipeline system, called the Sunrise Expansion Program (Project).
The Project includes the installation of pipeline loops and additional compression at select existing compressor station sites. Westcoast is proposing the use of electric-driven compressors, which would require new powerline infrastructure.
After a rigorous regulatory process, the Project was approved in April 2026, with construction targeted to start in summer and an in-service date by late 2028. Once in operation, it will add 300 million cubic feet per day of natural gas transportation capacity to the system, ensuring delivery of affordable energy to customers.
We are engaging with Indigenous groups, landowners and local communities as we move the Project forward.
Project overview:
- Type: Natural gas pipeline expansion
- Status: Approved
- Capacity expansion: 300 MMcf/d
- Expected to transport: Natural gas
- In-service target date: 2028
- Ownership: Enbridge
- Operator: Westcoast Energy Limited Partnership
Project map:
(click image to enlarge project map)
Project Information:
Project Scope
Pipeline loops
A total of approximately 139 km of 42-inch pipeline looping in various segments along the system is currently anticipated in order to increase natural gas transportation capacity. The pipeline loops would be added along Westcoast’s existing right-of-way (ROW). The additional loop segments will run parallel and connect to the existing pipeline system.
Video: Pipelines, looping and crossovers explained
Compressors and infrastructure upgrades
Westcoast plans to install new compressors at existing compressor stations located at Azouzetta Lake (CS-2B), 93 Mile (CS-6B), Kingsvale (CS-8A), and Othello (CS-8B).
To reduce environmental impacts, Westcoast is proposing the use of electric-driven compressor units for some of the compression required for the Project.
To power the new electric-driven compressor units and ensure reliable operations, approximately 10 km of new electric transmission powerlines are proposed to be installed. These overhead powerlines would largely follow existing linear infrastructure such as roads or rights-of-way to minimize environmental and local community impacts.