Aspect were originally brought in to replace 4no lighting inverters for a government department on Whitehall. After working so well with the client and the facilities management, the scope soon expanded to include 2.4MW of UPS systems and the replacement of over 120 tones of batteries throughout the building. Aspect also undertook a project to replace switch gear and extensive cabling throughout the plant rooms. Due to the nature of the building, all of this work had to take place in a carefully programmed and structured way. The staff working within the building were not to be made aware of any ongoing works and the project was completed with zero disruption to the building operations.