CASE STUDY | TOTTENHAM HOTSPUR STADIUM IN A (CIBSE) LEAGUE OF THEIR OWN American football and concerts will feature regularly at the stadium panels on both generators; if one generator failed, wed still be able to run life-safety systems for the entire building from the one generator. Weve completed a significant amount of doomsday testing for Building Control to get the stadiums safety certificate. Some of the big electrical loads the design has to be able to deal with include lighting and IT. Pitch lighting is based on 324 LED fittings in a 450kW scheme. The scheme also includes faade lighting, while the roof features what Carr describes as a halo of light integrated into the roof eaves, to project colour onto the top of the roof. There are also RGB LED uplighters mounted within the roof structure, to enable the club to project a variety of colours onto the roofs underside. The stadium incorporates a huge amount of IT, including everything from security to pitch lighting. It also has wireless connectivity across the venue to enable fans inside the stadium to connect with and share their live-event experiences with others around the world. The IT systems are backed up by two, 600kVA uninterruptible power supply (UPS) systems, which will ensure continuity of operation until the standby generators kick into action. BuroHappold Engineering, which designed the building services for Tottenham Hotspurs new home stadium, was the winner of the Building Performance Consultancy (Over 1,000 Employees) category at this years CIBSE Building Performance Awards. The focus of the consultancy is on delivering high-performing buildings and cities via six core areas: delivering building performance; health, wellbeing and productivity; BIM for efcient delivery; smart buildings; digital design for the built environment; and design for prefabrication. The award judges were particularly impressed with the work by the building performance group to create an interactive database for all modelled and measured data across BuroHappold Engineerings global portfolio of projects. This will enable project teams to understand how their buildings are performing in use and on a year-on-year basis. It is good to see what BuroHappold is doing to address building performance and to get that understanding reected in what is delivered on site, said the judges. The stadiums 57 kitchens are classed as non-essential under the criticality classification. The main kitchen, which prepares food for all of the stadiums smaller processing kitchens, has a mighty 1,000amp supply. If there is a power failure during a game, the match can continue, the TV broadcast can continue, but hot food will no longer be available, Carr says. Surprisingly, the micro-brewery located beneath the South Stand is classed as non-essential, too. It includes an electric steam boiler fed from two supplies of 520A and 250A. The brewery also has a distribution board to serve pumps, among other things, and this has a 250A supply. To keep the loads manageable, the brewery does not brew beer on the same day as a match is scheduled, explains Carr. The stadium opened to critical acclaim for the quality of its design, if not for the quality of football played on the night. Now that this major landmark is complete, the second phase of the sites development is set to begin and will include a 180-bedroom hotel, an extreme sports building with the UKs tallest climbing wall, a community health centre, and 222 new affordable homes. Game on. CJ 38 November 2019 www.cibsejournal.com CIBSE Nov19 pp34-38 Tottenham ground.indd 38 25/10/2019 14:48