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.”
Project metricsBudget: $210,000Energy : 255,700 kWhDemand reduction: 36 kWCost Savings: $34,520 / yearUtility Incentive $61,370Simple Payback = 4.2 years
after incentive
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
Overhead laboratory lighting
Atrium lighting
stairwell lighting
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
.
Critical evaluation of lighting control technologies:
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
Technology Overview
Wireless Lighting Controls for Lab Spaces:
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
Wireless Lighting Controls for Lab Spaces:
Wireless Lighting Controls for Lab Spaces:
Wireless Lighting Controls for Lab Spaces:
Wireless Lighting Controls for Lab Spaces:
Use of computer modeling on lighting:
Use of computer modeling on lighting:
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).
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.
Re-evaluating of lighting levels in labs, hallways, and stairwells:
Re-evaluating of lighting levels in labs, hallways, and stairwells:
LED retrofit of recessed downlights (6” and 8” applications):
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
Final Thoughts
Occupant input is important PBSci facilities staff Physical Plant staff Installation crew Prinicipal Investigators Sustainability Students
Green Labs PBSci Students