Crossrail is the new high-frequency, high-capacity railway connecting Heathrow and West London with the central and eastern areas of the city. As part of this landmark project, VolkerFitzpatrick Ltd were managing a £50m upgrade of the Ilford Yard train depot, and asked us to supply temporary power to help test and commission new sidings and buildings. With so much testing and servicing going on, avoiding outages and voltage drops was crucial. At the same time, keeping generators running all the time would be too expensive. So we had to design a system that would be consistent and reliable, but also lean and cost effective.