NOVA Gas Transmission Ltd. - 2021 NGTL System Expansion Project

NOVA Gas Transmission Limited (NGTL), a wholly owned subsidiary of Trans Canada, has filed an application for the 2021 NGTL System Expansion Project. NGTL proposes to build and operate approximately 344 km of 1,219 mm (NPS 48) outside diameter natural gas pipeline and associated facilities in northwestern Alberta. If approved, the project would "loop" or add new pipeline parallel or adjacent to, the existing NGTL System.

The Project includes three main areas:

Grande Prairie West Area:

  • Grande Prairie Mainline Loop No. 4 (Valhalla Section), approximately 36 km; and,
  • Grande Prairie Mainline Loop No. 3 (Elmworth Section), approximately 46 km.

Grande Prairie South Area:

  • Grande Prairie Mainline Loop No. 2 (Karr Section), approximately 57 km;
  • Grande Prairie Mainline Loop No. 2 (Deep Valley Section), approximately 69 km; and,
  • Grande Prairie Mainline Loop No. 2 (McLeod River Connection Section), approximately 14 km.

Edson South Area:

  • Edson Mainline Loop No. 4 (Rob Section), approximately 42 km;
  • Edson Mainline Loop No. 4 (Dismal Creek Section), approximately 32 km;
  • Edson Mainline Loop 4 (Brewer Section), approximately 49 km;
  • Three compressor station unit additions at Nordegg, AB, Didsbury, AB and Beiseker, AB; and,
  • January Creek Control Valve and associated pipeline tie-ins.

In its application, NGTL said the project was needed to transport natural gas from areas of increasing production in northwestern Alberta and northeastern BC to intra-Alberta and export markets. If approved, NGTL plans to begin operating the project by April 2021.

The application includes designated physical activities listed in the Regulations Designating Physical Activities (Regulations) under the Canadian Environmental Assessment Act, 2012 (CEAA 2012), specifically the construction of over 40 km of new pipeline. As a result, the Project will be a designated project for the purposes of CEAA 2012 for which the NEB will be the responsible authority.


Latest update

February 18, 2021 - The assessment decision statement has been issued to the proponent.


External links

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Process Advisor Team
Canada Energy Regulator
Telephone: 403-292-4800 or 1-800-899-1265

  • Location

    • Grande Prairie (Alberta)
    • Rocky Mountain House (Alberta)
  • Nature of Activity

    • Oil and Gas
  • Assessment Status

  • Start Date

  • Proponent

    NOVA Gas Transmission Ltd.
  • Authorities

    • Canada Energy Regulator
  • Assessment Type

    Environmental assessment under CEAA 2012
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

Nearby assessments

...within 200 kilometres
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