Lighting & Lighting Controls In Education Applications

1. Lighting & Lighting Controls In Education Applications Sophie Parry National Accounts Manager- Energy Solutions

2. AGENDA Background and current best practice The design process 3. Day lighting 4. Artificial lighting 5. Lighting controls 6. The retrofit market 7. Sustainability

3. Background & Current Best Practice Requirement- Designs that meet relevant standards and current best practice Example- Schools falling under the PSBP (Priority Schools Building Programme) Referenced Standards/ guides Section 2.8.5 Daylight & Lighting Lessons Learned from BSF Projects

4. Design Process Teaching spaces require careful consideration in respect of: • Simple operation for end user • Daylight harvesting v/v consistent and useful lighting levels • Effective lighting control at teaching wall/ white board • Energy saving potential through a compliant lighting design including compliant lighting control solution

5. Day Lighting • Good design should make best use of day light wherever possible to promote the psychological and physiological well-being of occupants. • Fenestration cannot be designed with the sole purpose of maximising day lighting External Solar Blinds • The following overall design factors have to be taken into account: • Day lighting design • Prevention of summertime overheating • Design of ventilation • Acoustic design • Blinds/ shading can be automated with lighting controls to blend • day light and artificial light

6. Day Lighting Cont. • Good design should make best use of day light wherever possible • Day light needs to be controlled to prevent glare and solar gain • Day light can be blended with artificial light to provide the desired lighting solution (daylight harvesting) • Design based on Climate Based Daylight Model (CDBM), specifically Daylight Autonomy (DA) & Useful Daylight index (UDI)& takes precedence over the daylight minima factors in BREEAM A calibrated photocell can form the basis of a daylight harvesting feature as part of a solar blind/ lighting control system Day lighting internal spaces

7. Benchmark Lighting Design - Classroom

8. Benchmark Lighting Design – Lecture Theatre

9. Benchmark Lighting Control - Classrooms

10. Benchmark Lighting Control - Classrooms • Detectors set to absence mode • Detector coverage limited to 30m2 • Luminaires to be regulated • Particular attention to teaching wall/screen • Each row of lighting has a separate detector/ photocell • Photocells should be located for accurate sensing of daylight levels relative to lighting row

11. Benchmark Lighting Control- Lecture Theatres

12. Benchmark Lighting Control - Lecture Theatres • Not always the potential for day lighting • Luminaires to be regulated • Typically larger seating capacity/space than a standard 30 student classroom • Allow for absence detection • Pay particular attention to lighting over demonstration area and teaching wall • AV systems in common use and can be interfaced to lighting control system

13. The Retro-Fit Market • Lighting and lighting controls are a popular choice as an energy saving retrofit option in 2011 • In the graph opposite, it is noted that lighting controls are the 4th most popular choice • Followed by Lighting as the 5th most popular choice Source: Engineering Sustainable Schools- CIBSE Schools Design Group

14. Sustainability Sourcing of Lighting & Control Products Design & Commercial Considerations Source: CIBSE/SSL LG5

15. Conclusion THANK YOU ANY QUESTIONS? Acknowledgements: CIBSE/SLL LG5 CIBSE Schools Design Group