RWE was constructing the UK’s largest gas-powered power station at Pembroke in Wales. The plant featured five 470MW gas-fired turbines and required control and switchgear equipment, along with fire-suppression systems, to be housed alongside the turbine hall.


Portastor designed, manufactured and installed a two-storey equipment building measuring 30m x 11m x 4.1m. It was fitted out to house all of the control and switchgear equipment associated with the power generation process.
The lower floor accommodated transformers as well as the fire-suppression system for the building itself and the adjacent turbine hall. This comprised huge bottles of inert gas that would be released into the building and turbine hall in the event of a fire. The building itself was designed to provide four-hour fire resistance.
The difficult access to the site, along narrow roads through the centre of town, meant the building had to be transported in four pieces and reassembled on site. The scale of the Portastor manufacturing plant allowed the building to be fitted out and tested as a complete unit prior to despatch, then dismantled, delivered and reassembled for final commissioning on site.

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