Physical Sciences Building Laboratory Automated Lighting Conversion Project

1. Physical Sciences Building Laboratory Automated Lighting Conversion Project “Achieving significant energy reductions in laboratory lighting, with reduced costs and flexibility, and without a turnkey design-build, proprietary installation.”

2. Project metrics • Budget: $210,000 • Energy : 255,700 kWh • Demand reduction: 36 kW • Cost Savings: $34,520 / year • Utility Incentive $61,370 • Simple Payback = 4.2 years • after incentive

3. Introduction • Lab buildings • high energy usage • lighting loads with long operating hours • Minimal control • Due to the nature of the lab research, difficult to implement lighting energy efficiency

4. Overhead laboratory lighting

5. Atrium lighting

6. stairwell lighting

7. Technology selection • Brought in an outside consultant • assist in evaluation of technologies • support communication to building occupants • support implementation of the hardware/software • Objective technical information .

8. Critical evaluation of lighting control technologies:

9. Technology Selection • Two members of the UCSC project team attended a workshop that physically installed and wired 3 major lighting control systems • Pre-construction planning and evaluation was critical because new technologies can: • Be Problematic • Be Proprietary • Have High first time/maintenance costs

10. Technology Overview

11. Wireless Lighting Controls for Lab Spaces:

12. Communication • Faculty • Principal Investigators • Find PI champions • Phase I rollout best suited for supportive occupants • Troubleshooting • Facilities staff • Protective of their faculty • Even more important to talk to faculty directly • Students • The best advocates! • Green Labs

13. Wireless Lighting Controls for Lab Spaces:

14. Wireless Lighting Controls for Lab Spaces:

15. Wireless Lighting Controls for Lab Spaces:

16. Wireless Lighting Controls for Lab Spaces:

17. Use of computer modeling on lighting:

18. Use of computer modeling on lighting:

19. Wireless Daylighting for labs, Atriums, and Hallways: • We achieved a minimum savings of 40% (based on resetting maximum lighting levels), up to ~70% energy savings (based on daylight and occupancy control).

20. Re-evaluating of lighting levels in labs, hallways, and stairwells: • Re-evaluated actual lighting levels for hallways, stairwells, and labs (compared to IEEE) • Actual lighting levels exceeded requirements substantially. • The utilization of integrated lighting controls and dimming ballasts allowed UCSC to achieve significant energy savings.

21. Re-evaluating of lighting levels in labs, hallways, and stairwells:

22. Re-evaluating of lighting levels in labs, hallways, and stairwells:

23. LED retrofit of recessed downlights (6” and 8” applications):

24. Final Thoughts • Different solutions are the best fit for: • Different building types • Campus staffing/needs • System flexibility is important • Cost control • Technology options in future

25. Final Thoughts • Occupant input is important • PBSci facilities staff • Physical Plant staff • Installation crew • Prinicipal Investigators • Sustainability Students • Green Labs • PBSci Students