Scotland–Northern Ireland pipeline

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Scotland-Northern Ireland pipeline
)

Scotland to Northern Ireland Pipeline
Location
CountryUnited Kingdom
General directionNorth to South
FromTwynholm, Scotland
ToBallylumford power station, Northern Ireland
General information
TypeNatural gas
OwnerMutual Energy
ContractorsEuropean Marine Contractors (EMC)
Commissioned1996
Technical information
Length135 km (84 mi)
Diameter609 mm (24 in)

The Scotland-Northern Ireland Pipeline (SNIP) is a 24 in (610 mm), 135 km (84 mi) long

pipeline which runs from Twynholm, Scotland to Islandmagee in Northern Ireland. The SNIP is owned by Mutual Energy
.

Background

In March 1992

Ballylumford power station in Northern Ireland to British Gas for £132 million.[1] This oil-fired power plant provided more than half of the power needs of the 600,000 customers in Northern Ireland. British Gas simultaneously announced its plans to set up Premier Transco to build and operate a natural gas pipeline between Scotland and Northern Ireland, to convert Ballylumford to natural gas, and to set up a commercial supply company for natural gas (what would become Phoenix Natural Gas).[1]

Ballylumford Power Station. The CCGT "C" station in the background is the biggest customer of SNIP gas.

Construction

In 1994 Premier Transco awarded the contract for design and construction of the SNIP to European Marine Contractors (EMC), a 50-50 venture of

British Steel plc. EMC used the Castoro Sei semi-submersible laybarge to install the line.[2]
The pipeline was completed in 1996.

The route and construction of the pipeline were both controversial due to concerns of it disrupting a weapons dump in and around Beaufort's Dyke.[3]

There are no accurate figures available from the UK Ministry of Defence for its disposal operations but it estimates that over a million tons of conventional weapons were disposed of between 1946 and 1963 with Beaufort's Dyke being the main site, just 25 miles off the coast of Larne. Sites off Donegal and the Cork/Kerry coast were also used after the second World War.[4]

From Twynholm the pipeline is routed overland to Stranraer and then as a submarine pipeline to Ballylumford.

Operation

The SNIP was commissioned in 1996. It is designated the Pipeline Number PL982 by the

Oil & Gas Authority
. The pipeline has a maximum operating pressure of 75 bar (1000 psi).

From

Coolkeeragh power station
.

See also

References

  1. ^ a b "NIE power plant sale agreed and BG plans gas pipeline". FT Energy Newsletters - European Energy Report. Financial Times Business Limited. 6 March 1992.
  2. ^ a b "World pipeline construction plans show increase into next century". Oil & Gas Journal. 6 February 1995.
  3. ^ Frank Urquhart And Nic Outterside (9 January 1996). "Pipeline that crossed into danger". The Scotsman.
  4. ^ Siggins, Lorna (29 February 1996). "Gilmore to seek joint plan on Beaufort Dyke munitions". The Irish Times.
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