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