R&D

Codes and Standards Enhancement—Quality Demonstration Program

09/24/2014

The CASE-Q DP Program Manual contains the requirements and processes for future field demonstrations. It can be used by any team wishing to conduct a sound, thorough and well-documented technology demonstration. In addition to providing this resource, the CASE-Q DP directly supports identification, selection, installation and performance assessments of energy-efficient building technologies ready for current or near-term inclusion in California's Codes and Standards Enhancement (CASE) initiatives.

Shedding More Light on Occupancy

09/01/2014

LD+A – Multiple studies have demonstrated the significant energy savings that bi-level, occupancy-based lighting controls can achieve in outdoor applications. These controls maintain recommended illumination levels during occupied periods and automatically dim lights, reducing power by 50 percent or more, during vacant periods.

Lighting Control User Interface Standards

11/01/2010

IES Annual Conference 2010—Lighting control user interface elements are governed by few standards. This may lead to products that are unnecessarily confusing for building occupants, leading to a lost opportunity for energy savings. The problem may worsen as control capabilities rise
sharply with the advent of digital and networked systems.

Field Luminance Mapping of the Sky

11/01/2010

IES Annual Conference 2010—When sky luminance distributions are measured far from a laboratory facility, portable and inexpensive instruments are useful. High dynamic range (HDR) photography has become a practical method for sky luminance mapping. However, long exposure photography directed at the sun can cause severe damage to digital camera sensors. To avoid this problem, a system was designed that integrates an adjustable shading disk with an HDR camera.

LED Lamp Testing at UC Davis

04/18/2014

Since its establishment in 2003, the California Lighting Technology Center (CLTC) at UC Davis has conducted extended photometric and electrical testing of light sources. During the last 10 years, CLTC has been successful in establishing an array of testing facilities, some with unique capabilities, including complete photometric and electrical testing laboratories, and chambers for lifecycle testing under customized operational conditions.

UC Davis Is Powering Prosperity

UC Davis was honored with this year's Powering Prosperity award, which is sponsored by PG&E. The award recognizes UC Davis's contributions to the economic vitality of the Sacramento region and the university's leadership role fostering the research and development of strategies and policies, as well as products and services, that improve sustainability and energy efficiency.

Exterior Occupancy Sensor Development

12/12/2013

Presented by Bernhard Goesmann at an online webinar for Better Buildings Alliance—This presentation includes information about energy efficiency legislation, exterior sensor types and technologies, testing efforts, field demonstrations, and next steps.

In Pursuit of Automated Demand Response

11/01/2013

LD+A – CLTC and Berkeley Lab partnered to test the ADR-readiness of commercially available networked lighting control systems. All three systems tested were configured for automated demand response (ADR) communications, and all three successfully accessed the demand response automation server (DRAS) to retrieve DR events.

Singapore to Launch Lighting Technology Center in Collaboration with UC Davis

The University of California, Davis, is collaborating with the Singapore Green Building Council (SGBC) and Singapore’s Building and Construction Authority (BCA) to develop a lighting efficiency demonstration and training center in Singapore. Leaders from the three institutions signed a Memorandum of Understanding (MOU) on September 12 stating goals and strategies for fostering sustainable lighting solutions through the new center.

Eyes on the Road

08/01/2013

LD+A – CLTC researchers incorporated passive infrared (PIR) occupancy sensors and networked controls into a test set of dimmable LED roadway fixtures. The adaptive street lighting system yielded energy savings 27 to 42 percent greater than when the fixtures operated at a static level. All occupants, 100 percent, were detected by the PIR occupancy sensor selected for field testing, whether they were traveling on foot, by bicycle, on a motorcycle, or in an automobile.

California Lighting Technology Center