Pembrokeshire Power Station
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Pembroke Power station Infrastructure Scheme

Client: Alstom Power Ltd for RWE Npower plc

Value: £4m


  • 3 km of highway construction
  • Over 11km of ducting
  • Site wide drainage
  • Restrictive work corridors
  • Multi trade site


Alstom Power was appointed to construct the new 1 Billion Euro KA26 combined cycle gas turbine Pembroke power station . The Client was RWE Npower plc and upon completion, the turnkey project will deliver a total capacity of 2165 MW into the National Grid.

As building construction neared completion, the EPC contractor sought to appoint a contractor to provide all infrastructure, finishing works and landscaping prior to final handover to the client and power station operator.

Critical to this appointment was the need to appoint a contractor who would work seamlessly alongside numerous other sub-trades, all working towards tight completion deadlines.


Walters were approached by Alstom Power to provide this service and soon after were appointed to undertake the Infrastructure & Completion Contract, with an estimated project value in excess of £4 million.

Walters immediately deployed a 20 strong management team to work collaboratively with Alstom Power, to ensure timely delivery of the high quality works as demanded by a fast track, turnkey programme that had an operational team peaking at over 80 skilled operatives.

The scope of works undertaken included over 3 kilometres of highways, associated ducting and extensive surface water drainage. In addition, site wide structural concrete and site perimeter CCTV ducting were constructed within increasingly restricted service corridors.

Specialist contracting support included GRP laminating, structural debris netting, specialist metalwork, pipe work trestles and ancillary buildings, all undertaken in a high security site environment, with stringent risk management and permit controls in place to avoid extensive underground electrical services.

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