LIGHTING
improved efficiency of up to 96% on traditional options. This is clearly illustrated in the recent case of Hackney Community College, which converted 4,900 lamps to LED and achieved predicted energy savings of £70,000 a year.
Although sometimes overlooked, however, it’s equally important to optimise savings by investing in energy efficient lighting controls. For example, from the case studies found in the aforementioned RIBA report there were some consistent findings that 40% to 60% of schools’ energy costs were incurred when they were closed; overnight, weekends and in school holiday periods. With such a huge drain on energy, lighting left on unnecessarily is an expensive waste, which can easily be avoided.
“HACKNEY
COMMUNITY COLLEGE WHICH CONVERTED 4,900 LAMPS TO
LED AND ACHIEVED PREDICTED ENERGY
SAVINGS OF £70,000 A YEAR.”
A common solution is occupancy detector technology comprising of sensors that simply turn the lights off when there are no occupants in the room, such as corridors, halls or landings, meaning energy is only used when necessary. The latest occupancy detectors on the market also have low power consumption, offering potential for greater energy savings – and are scalable, meaning facilities managers can add more devices and capabilities when required.
Furthermore, the good news is that occupancy detection isn’t just restricted to standard ceiling lighting, with manufacturers continuing to develop inventive ways of reducing lighting energy use in all areas of the commercial environment.
www.tomorrowsfm.com TOMORROW’S FM | 49
The most advanced occupancy detector technology incorporates class-leading sensitivity with macro and micro detection, lens tilting and automatic detection of DALI and DSI digital dimming type luminaires - for ease of installation and commissioning. Plus, many of these detectors such as the new Newlec DALI compatible occupancy detectors, are incredibly easy to set up and commission using a remote control , with more and more products programmable and controllable through mobile phones and tablets.
Aside from quick installation meaning reduced labour cost, a huge benefit for the facilities manager is the ability to easily change the function at different times and different days to suit a building’s usage: ie, turning lighting off during evenings and weekends when the students are away. In this way they can change the lighting function on an ad hoc basis to reflect any changes in occupancy, thus unlocking optimum energy savings.
Finally, dimming is also one of the
best ways of maximising savings on lighting, enabling the user to adjust as necessary to optimise control, with most grid devices being suitable for retrofit. Many of today’s options come with a selection of grid fronts to suit most requirements and can be used to control different light sources including dimmable LED lamps and fittings.
“LIGHTING ACCOUNTS FOR 20-25% OF THE
TOTAL ENERGY USED IN SCHOOLS.”
The reality is that the cost of energy remains a huge concern for UK schools amid a volatile energy market. Thus, as one of the easiest ways to make swift and impactful energy cost reductions, lighting is core to this – but it’s important to remember it’s not only about making the switch to greener alternatives but keeping it under control.
www.neweyandeyre.co.uk
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