Sofitel London Heathrow
At a Glance
When the Sofitel London Heathrow hotel explored options to migrate from the Airport’s privately owned and operated HV electricity system to a new supplier, significant potential energy cost reductions were identified…if complex engineering challenges could be overcome.
Although there was a connection point to a new HV network only 200m away, a conventional ‘excavation and reinstatement’ approach to lay the cable was rejected on economic grounds, so DragonIS provided a directional drilling solution, using topographical data mapped by ground penetrating radar. This meant negotiating a host of critical – and densely located - underground services, including fuel delivery pipes, hydrant mains, fibre optic cabling, 11 and 33kV electricity cables and a gas feed…a feat completed in just two weeks.
At the hotel site, a new intake substation was installed, along with HV switchgear, to take the feed from the DNO (SSE), while careful project management ensured continuity of supply to the hotel during change-over, with seamless switching between transformers. As a result of DragonIS’s innovative design and programme of works, the hotel achieved project payback in just nine months thanks to much reduced energy costs, with ongoing savings estimated at £90,000 per month.
Want an electricity/gas distribution network designed and installed to meet your needs, your budget and your deadline? We should talk.