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The third and final phase of a project to increase reverse flow (UK
import) capacity of the Interconnector system was successfully delivered
on 1 October 2007. The first two phases of the project involved the
installation of compression at the Zeebrugge terminal and associated
additional facilities at both Zeebrugge and Bacton terminals.
This third phase has involved the uprating/replacement of certain items
of plant and equipment to achieve a higher system operating pressure.
Work started on the first phase of this enhancement in 2003 and the
total cost of all three phases of the project is approximately £160m.
The project has taken UK import capacity of the system from an initial
8.5bmc/y to the current 25.5bcm/y as follows:
|
Effective Date |
Reverse Flow Capacity (bcm/y) |
|
Initial project
|
1 Oct 1998 |
8.5 |
| Phase 1
Installation of two compressors at IZT |
8 Nov 2005 |
16.5 |
|
Phase
2
Installation of a further two compressors at IZT |
1 Oct 2006 |
23.5 |
|
Phase 3
Operating Pressure Increase |
1 Oct 2007 |
25.5 |
The new compressors are powered by 35 MW electric motor drives. Compressor
power for gas transportation has traditionally been provided by Gas
Turbines, as currently used at the Bacton terminal. Recent advances
in electric motor technology, together with IUK's commitment to minimising
noise and emissions from the terminal, made electric drives the most
attractive option for the Zeebrugge terminal.
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