Case Studies The University of Manchester The green agenda dominates the UK building and construction sector, in particular the redevelopment of the country's educational establishments. Protecting the environment, sustainable building, saving energy and reducing carbon emissions: these are the green issues the education sector has been tasked with addressing. Eliminating unnecessary use of lighting is proving to be an extremely effective method of cutting an educational building's carbon footprint. Systems from Ex-Or monitor the presence of occupants and measure the amount of natural light available and then automatically switch lights on and off, and dim or brighten them, as required. Ex-Or's equipment is helping schools and other educational establishments around the UK to dramatically cut costs and save energy. Their systems are being incorporated into both new-build and refurbishment developments. “University of Manchester specifies Ex-Or lighting controls” Ex-Or won the contract to supply lighting controls throughout the University of Manchester, the country's largest single-site higher education institution. The University is embarking on the biggest programme of capital investment ever seen in British higher education. It is spending £350 million to deliver eight new buildings and 15 major refurbishment projects. Faced with escalating energy costs of up to 80 per cent, and the requirement to reduce carbon emissions, the University of Manchester sees energy conservation as a critical factor in their building programme hence the specification of Ex-Or equipment. Of its total energy budget of £15 million, £9 million is accounted for by electricity use. The University estimates that lighting alone accounts for around 50 per cent of the electrical load. With 10,000 staff and 35,000 students it is equivalent to the entire lighting load of a typical town. “Saving in electricity use of 69%” “Having installed a variety of Ex-Or control systems in a number of new-build and refurbishment projects, we have seen the dramatic cuts in energy costs that automatic and efficient lighting control can deliver,” said Chris Cunningham, Manchester University mechanical and energy engineer. “Now we are embarking on this unprecedented capital investment building programme, we have decided that each and every building involved will benefit from automatic lighting control. “We have found Ex-Or’s equipment to be cost effective to install, flexible enough to cope easily with the constantly changing work and study layouts common in a dynamic university setting, and capable of providing significant energy cost savings by providing significant energy cost savings by automatically delivering lighting only on an ‘as needed basis.’ “We first measured the amount of electricity used in a trial area, then installed Ex-Or detectors, and took the same measurements again. These showed a saving in electricity of 69 per cent.” Corridors, meeting rooms, computer suites, science labs, reception lobbies, office areas and lecture theatres are just some of the locations in various University of Manchester buildings where Ex-Or LightSpot and Ex-Or MLS Digital Managed Lighting System equipment has been installed.