NG Bailey helps put the ‘eco-heart’ into Old Oak Common

13th April 2017

NG Bailey has successfully completed the design, build and installation of a new modulised central boiler plantroom that is at the heart of Transport for London’s new Elizabeth line Train Maintenance and Stabling Depot at Old Oak Common Lane, North West London.

The Old Oak Common (OOC) Depot will include stabling sidings for 33 of the 66 new Elizabeth line trains being built in Derby by Bombardier Transportation and a state-of-the-art nine-track Operating, Maintenance and Control (OMC) building. The new plantroom, due to come into operation in May 2017, is a key integral element of the Building Services system.

The Building Services design, build and installation at OOC embraces a collaborative team approach with early engagement of all key design and development partners. Taylor Woodrow leads the process and is dependent on its selected specialist supply chain, in which NG Bailey has a key role. The award winning hybrid renewable energy system has been developed by GI Energy in collaboration with Taylor Woodrow, NG Bailey and Uponor Building Services with the Lead Designer role fulfilled by Atkins Global; together the team has created a solution which has met the demanding sustainability requirements set by Transport for London.

The modular plantroom comprises six 24 sq.m. pre-fabricated modules, each weighing in excess of a tonne that contain the central boiler plant and pipework interfacing with the renewable energy systems. Due to its streamlined pre-fabricated design, the installation of the modules took just two days to install on site and complete in two weeks

Each large scale module was manufactured in our dedicated off-site manufacturing facility. The traditional build time for the full installation and testing for the main body of the plant room would have been 3000 site labour hours but by using offsite manufacture, this was reduced to just 400 site hours. The quality of the central boiler plant has also been improved through construction under factory conditions. This enabled much of the complicated work to be completed offsite allowing a much simpler on site installation.

The whole OOC Depot scheme will exceed the initial design target of 20% of the main building’s energy requirements coming from renewable sources. The award winning Hybrid scheme is set to deliver over 30% of the services energy demand.

Lee Taylor, director of Rail at NG Bailey, explains: “This is one of the largest depots to be built in the UK in recent years, and sets a new sustainability benchmark that will undoubtedly form a new blueprint for future depots”

The plantroom will be the heart of the building, integrated with the renewable energy systems and distributing the energy generated by the numerous eco systems.

Taylor Woodrow is the main contractor and lead coordinator of the building services design for the £142m Old Oak Common (OOC) Depot with NG Bailey responsible for the circa £14m mechanical, electrical and plumbing services. GI Energy is the specialist renewable energy subcontractor responsible for the renewable energy systems and Uponor Building Services is responsible for the underfloor heating and cooling distribution pipework throughout the main Depot building accommodation and workshop areas.