Isle of Man to England Interconnector

Isle of Man to England Interconnector
Country United Kingdom, Isle of Man
Coordinates 53°50′57″N 03°01′46″W / 53.84917°N 3.02944°W / 53.84917; -3.02944
54°08′52″N 4°28′51″W / 54.14778°N 4.48083°W / 54.14778; -4.48083
From Bispham, Blackpool, England
Passes through Irish Sea
To Douglas Head, Isle of Man
Ownership information
Partners National Grid plc
Construction information
Manufacturer of conductor/cable BICC, Erith
Pirelli Cables, Southampton
Construction started 1999
Commissioned 2000
Technical information
Type submarine cable
Type of current AC
Total length 104 km (65 mi)
Power rating 40 MW
AC Voltage 90 kV

The Isle of Man to England Interconnector is a submarine power cable connecting the transmission system of the Manx Electricity Authority to that of Great Britain. With an undersea section of approximately 104 kilometres (65 mi),[1] it is the longest AC undersea cable in the world.[2][a] It was laid in 1999 between Bispham, Blackpool, England, and Douglas Head on the Isle of Man, commencing commercial operations in November 2000. It is capable of continuous operation of 40 MW at 90 kV.

The cable was manufactured in two parts: one section at BICC in Erith and the other at Pirelli Cables in Southampton.

Once completed, the cable ended the Isle of Man's dependence on locally powered diesel generation.[2] Power supplies to the island were further reinforced in 2003 by an 85-MW combined cycle gas turbine power station at Pulrose, in the capital, Douglas.[3]

See also


a. ^ Longer undersea cables exist, but all operate on direct current.


  1. Howarth, B.; Coates, M.; Renforth, L. (March 2006). "Fault location techniques for one of the World's longest AC interconnector cables". 8th IEE International Conference on AC and DC Power Transmission. pp. 14–18. ISBN 0-86341-613-6.
  2. 1 2 "The Longest AC Subsea Cable in the World". Major Assets. Manx Electricity Authority. Retrieved 2008-10-22.
  3. Pickin, M (2004). "Power to Pulrose". Power Engineer. IEEE. 18 (1): 14–16. ISSN 1479-8344.

Coordinates: 54°0′N 3°50′W / 54.000°N 3.833°W / 54.000; -3.833

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