Core sunlighting systems deliver sunlight deep into multi-story building cores, where daylight is not available through skylights or windows. An effective core sunlighting system offers physiological and psychological benefits to occupants while dramatically improving the quality and color rendering of lighting, reducing lighting electricity use up to 75%, and reducing electricity loads during peak demand periods.
Sinisa Novakovic, owner of Mishka’s café in downtown Davis, had two goals for the recent lighting upgrade in his café: create a cozy, inviting atmosphere for customers and save energy. In the main seating area alone he was able to cut his lighting energy use 85% by upgrading to LED lighting.
This Retail Lighting course is offered through PG&E’s Energy Training Center and taught by an industry professional from CLTC. The class covers current Title 24 requirements for retail lighting, the compliance process, 2016 code updates, and efficiency measures’ impacts on the retail industry. It also offers cost-effective energy-saving measures for both new construction and retrofit projects. Attendees will receive hands-on exposure to new lighting technologies, and they will learn implementation strategies to comply with the code.
Photosensor control systems have been available for more than two decades, but they have struggled to gain widespread use due to issues with reliability. To address these issues, CLTC partnered with WattStopper, Walmart, Sacramento Municipal Utility District, Southern California Edison, and San Diego Gas & Electric Company to develop a more reliable, more effective daylighting control system capable of sensing changes in daylight levels with increased accuracy and responding with more appropriate adjustments in electric light levels.
Pacific Gas and Electric Company (PG&E) business fact sheet looking at current solid-state lighting options for existing luminaries.
The primary objective of this study is to quantify the energy use in private offices that are equipped with bi-level switching and occupant controls. The baseline comparison is made to a theoretical case where the occupant has no control over their lighting and it is switched on and off solely by an occupancy sensor. In addition, this study looks closely at the possibilities for combining automatic and manual control to achieve the greatest energy savings and user satisfaction.
Best practices and lighting designs to help builders comply with California’s 2008 Title 24 Building Energy Efficiency Standards.
NOTE: California's 2013 Title 24, Part 6 standards took effect July 1, 2014.
View CLTC's 2013 Title 24, Part 6 Residential Lighting Guide.
This technical brief deals with the issue of existing LED downlight products that fail to live up to expectations, providing poor light distribution, glare, and low system efficiencies. The solution is newly designed downlights that use LEDs to their full potential while maintaining the features and functionality that have made them popular.
The objective of the Smart Corridor project is to quantify the potential energy savings in corridor lighting by implementing bi-level lighting technologies in commercial spaces such as office, hospitality, and educational buildings while also evaluating the market potential for the bi-level lighting strategy. The energy savings data gathered from this project is crucial to the large-scale implementation of bi-level strategies, as it will support the inclusion of bi-level lighting practices for secondary spaces in utility incentive programs and, eventually, building code language.
This demonstration project consists of a one-to-one retrofit of existing fluorescent luminaires with either new fixtures or new components for three corridor areas in Bainer Hall. This project is intended to demonstrate the energy savings that can be achieved by using occupancy-based controls for interior corridor applications.