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Terasen Gas

Committed to British Columbia's energy needs, Terasen Gas provides safe, reliable and innovative energy solutions. Delivers energy to 96 per cent of the province's natural gas customers, approximately 940,000 customers, in more than 125 communities. In addition to natural gas, Terasen Gas develops and delivers alternative energy solutions, including district energy and geoexchange, for today and tomorrow.

Terasen Gas operates three natural gas and propane assets:

  • Terasen Gas Inc. — serving most of mainland BC from Vancouver east to the Kootenays and north to communities including Mackenzie, Chetwynd and Fort Nelson
  • Terasen Gas (Vancouver Island) Inc. — serving Vancouver Island, Powell River and the Sunshine Coast
  • Terasen Gas (Whistler) Inc. — providing natural gas to the Resort Municipality of Whistler

Terasen Gas is a subsidiary of Fortis Inc. and regulated by the British Columbia Utilities Commission (BCUC).

Southern Crossing Pipeline Canada

  • 303 km Natural Gas transmission pipeline & compressor facilities completed 2000
  • Future Design Capacity of 600 mmcfd
  • Terasen is engineer, developer, owner & operator
  • Construction through most rugged terrain in north America

Corridor Pipeline Canada

  • 493 km 24-inch dual pipeline system as part of the Athabasca Oil Sands Project completed 2003
  • Design Capacity of 220,000 bpd

Trans Mountain Pipeline Canada

  • 1150 km 24-inch crude oil pipeline & 11 pumping stations
  • Current Capacity of 281,000 bpd

Express Pipeline Canada & USA

  • 2700 km 24-inch and 20-inch crude oil pipeline connecting Canadian and U.S. producers to U.S. refineries
  • Future Design Capacity of 150,000 bpd

Keystone Pipeline Canada & USA

  • 3,456 km crude oil pipeline from Alberta to mid-west U.S.
  • 36 & 30-inch pipelines
  • JV Partner Trow performed project management, route selection, permitting & construction planning
  • Client – Trans Canada Pipelines

Langley Compressor Station Project

Project Location: Southwest British Columbia, Canada

Client : Terasen Gas Inc.

Project Description:

This project consists of a new compressor station with 2 - 7,200hp gas turbine driven centrifugal compressors to provide increased flow and firm service to customers on the coastal transmission system. This complete stand-alone facility has station piping up to 1,067mm and is fully automated for unmanned operation.

Actual Services Provided:

  • BCUC (regulatory) approval
  • Overall program management
  • Cost control, planning & scheduling & land acquisition
  • Project management of this and associated projects on the transmission system
  • Community relations
  • Management of facility engineering and construction inspection.
Kitchener Comp. Stn, Hedley Comp Stn & Kingsvale Upgrade

Project Location: Southern British Columbia, Canada

Client : Terasen Gas Inc.

Project Description:
Kitchener - A new compressor station, built at the site of an existing facility, with 2 – 5,000hp gas turbine driven centrifugal compressors to provide increased flow and service to customers on the Southern Crossing pipeline.

Hedley – A new compressor station with a single 3,200hp electric motor driven centrifugal compressor to provide increased flow capacity on a 323mm transmission pipeline.

Kingsvale – Modifications to an existing compressor station to allow bi-directional flow.

Actual Services Provided:

  • Overall program management
  • Cost control, planning & scheduling & land acquisition
  • Project management of this and associated projects on the transmission system
  • Community relations
  • Management of facility engineering and construction inspection.
Fraser River Crossing between Surrey & Coquitlam

Project Location: British Columbia, Canada

Client : Terasen Gas Inc.

Project Description:
This project involved the installation of a new 914 mm O.D. pipeline across the Fraser River to replace an existing 508 mm O.D. crossing, originally installed in 1964 which carried a significant portion of the natural gas supply to the metropolitan area of the lower mainland.

There were many concerns regarding the existing crossing: lack of cover, expected poor seismic performance, unusual stresses in the pipe due to rail yard maintenance activities, and as well, inadequate capacity for future growth. Consideration of route alternatives resulted in a decision to utilize the existing pipeline and adjacent power line corridors. To address the same concerns that affected the existing pipeline and to minimize impact on the environment and archeology, installation was done by horizontal directional drilling (HDD) construction methodology.

Actual Services Provided:

Research and investigations, river crossing installation, tie-in piping installation, geotechnical ground improvements:

  • Tie-in piping installed into existing pipeline, August, 1999
  • HDD contractor move-in, January 17, 2000
  • Pipe pull-in, April 14, 2000
  • River crossing complete, May 15, 2000
  • Pipeline commissioned, May 26, 2000




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