National Grid


To meet the UK’s fast-growing electricity demand, caused by a rising population and major infrastructure developments, National Grid needs to build new 132kV substations at strategic locations across the country. The switchgear and all associated protection and control equipment needs to be accommodated in secure, long-life equipment housings that can be safely installed on live substation sites, without interrupting power supplies.


Portastor is supporting National Grid in its substation expansion programme by manufacturing, fitting out and installing a range of equipment housings. The buildings supplied include Portable Relay Rooms, Low Voltage AC rooms, control and permit rooms, battery rooms and telecoms housings.
These buildings have been installed at substation sites across the UK, including Sellindge, Bramford, New Cross, Thorpe Marsh, Drakelow and many more.
All of these buildings are fitted out to National Grid specifications and are constructed to provide a 40-year design life. The advantage of modular construction is that all fitting out and pre-commissioning work can take place away from the live substation site. Buildings are then installed quickly and safely on site, and simply connected ready for use.

01 Sellafield – Cumbria

Read case study

02 Western Power Distribution / Schneider Electric

Read case study

03 Irish Electricity Supply Board (ESB) – Eire

Read case study

04 National Grid

Read case study

Industry News from Around the World

News Aggregator

© Portastor quality assurances conforms to ISO 9001 +44 (0)845 6011 2762 Portastor, Portsilo, Portakabin, Porta, LX Plus and Shepherd Group are registered trademarks.

Portastor Limited. Company Registration No 6956110 (England & Wales)