The Republic of Ireland electricity network operator needed to upgrade and replace substation buildings at more than 80 sites across the country, as part of a large-scale facilities upgrade programme.


Build times on each site needed to be minimised, making modular buildings the preferred option. Portastor was able to offer a building specification that met all of ESB’s high standards, including a rigid floor to accommodate movement-sensitive switchgear and control equipment. Portastor developed ten standard building designs that covered all the requirements of ESB’s 80 or so sites.
By manufacturing these buildings in the controlled environment of its factory, Portastor could assure ESB that every substation housing would be completed to the same exacting standards. All Siemens and Areva switchgear and control equipment was installed and tested at the Portastor site, prior to delivery.
By manufacturing the buildings off site, groundworks and civil engineering works could be carried out in parallel with building construction – drastically reducing programme times. What’s more, sites could remain operational while the Portastor buildings were installed, so there was no interruption to electricity supplies for customers.
Over the five-year roll-out programme, Portastor safely delivered and installed more than 200 substation buildings to more than 80 sites.

01 Sellafield – Cumbria

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02 Western Power Distribution / Schneider Electric

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03 Irish Electricity Supply Board (ESB) – Eire

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04 National Grid

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