Alliance Gas Pipeline

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Alliance Gas Pipeline is an operational natural gas pipeline.

Location

The pipeline runs from the Western Canadian Sedimentary Basin and the Williston Basin in British Columbia to Chicago, Illinois.

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Project Details

• Operator: Enbridge
• Current capacity: 1600 Million cubic feet per day
• Proposed capacity: 400 Million cubic feet per day
• Length: 2,391 miles / 3,848 km
• Status: Operating
• Start Year: 2000
• Proposed Expansion Start Year: 2021

Background

Alliance Pipeline transports natural gas from northeastern British Columbia and northwestern Alberta, running underground through Saskatchewan, North Dakota, Minnesota, Iowa, and terminating in Illinois. The pipeline delivers more than 1.6 billion cubic feet per day of liquids-rich natural gas to the Chicago market.

The Alliance Pipeline system consists of a 3,848 km (2,391 mi) integrated Canadian and U.S. natural gas transmission pipeline system, delivering natural gas from the Western Canadian Sedimentary Basin and the Williston Basin to the Chicago market hub. The system has been in commercial service since December 2000 and delivers, on average, about 1.6 billion standard cubic feet (or 45.3 million standard cubic metres) of natural gas per day.

Canadian portion of the system:

338.37 km (210.25 mi) of 1067 mm (42-inch) and 1,221.73 km (759.15 mi) of 914 mm (36-inch) diameter steel pipe 52 receipt points connecting with lateral pipelines totaling about 731.36 km (454.45 mi), ranging in length from about 0.3 to 142 km (0.19 to 88.23 mi) and in diameter from 114 to 610 mm (4.5 to 24.0 in) 7 mainline compressor stations of about 23 to 34 MW (31,000 to 46,000 hp) each, spaced about 193 km (120 mi) apart 7 compressor stations on the lateral system that range from 0.4 - 15 MW (500 - 20,000 hp) Mainline block valves spaced about every 32 km (20 mi) apart Maximum Canadian operating pressure: 12,017 kPa (1,743 psig) Contract capacity: 130.5 million cubic meter/d (4.6 Bcf/d)

United States portion of the system:

886.41 miles (1,426.54 km) of 36-inch (910 mm) diameter steel pipe 2 receipt points (Bantry) connecting the Prairie Rose Pipeline and Tioga Lateral connecting at Sherwood, ND 7 compressor stations of about 31,000 hp (23 MW) each, spaced about 120 miles (190 km) apart 11 delivery stations, including Aux Sable, Hankinson and Lyle Mainline block valves spaced about every 20 miles (32 km) apart Maximum US operating pressure: 13,341 kPa (1,935 psig) Contract capacity: 42.8 million cubic meter/d (1.513 Bcf/d)

Ownership:

Alliance Pipeline Limited Partnership ("Alliance Canada") owns the Canadian portion of the Alliance Pipeline system. Alliance Pipeline L.P. ("Alliance U.S.A.") owns the U.S. portion of the Alliance Pipeline system. Both Alliance Canada and Alliance U.S.A. are owned 50 percent each by affiliates of Enbridge Income Fund Holdings Inc. (TSX:ENF) and Pembina Pipeline Corporation. (TSX:PPL).

Proposed Expansion

The Chicago area proposed expansion includes the addition of compression and other facilities to an existing pipeline system, which will add 400 million cubic feet per day of capacity. Pending regulatory approval, Alliance will increase capacity by approximately 25% through the addition of compression and other facilities to its system. Completion is expected by the end of 2021.

Articles and resources

External resources

This article uses content from the Wikipedia page "Alliance Pipeline," under the terms of the GNU Free Documentation License.