This review investigates the energy savings potential of an adaptive refrigeration controller for walk-in freezers and refrigerators. The technology continuously monitors conditions of a refrigeration unit and controls the system components in real time. Our study monitors the use of specific...

Wireless pneumatic thermostats (WPTs) present a retrofit opportunity that can enable energy-saving control strategies to be implemented in commercial buildings with older pneumatic HVAC controls. The goals of the scaled field placement were to evaluate the implementation of WPT systems at four...

The project assessed the energy savings potential of LED lighting with an advanced lighting control system (ALCS) in a commercial office building. The control strategies were implemented and monitored in the following phases: 1. Existing fluorescent lighting 2. New LED luminaires at full...

This study evaluates the performance of a test installation of Light Emitting Plasma (LEP) lighting and a wireless lighting control system, as compared to incumbent High Pressure Sodium (HPS) lighting, in a high mast application at a study site in northern California. The study evaluates energy...

Pacific Gas and Electric Company (PG&E) partnered with the California Lighting Technology Center (CLTC) at the University of California, Davis, to assess how education or incentive programs for lighting that uses light-emitting diode (LED) technology might best serve retail business owners...

The growing availability of detailed energy information for California’s utility customers makes possible new programmatic approaches for delivering energy efficiency and demand management services. A 2011 technology assessment that provided a grocery customer with an Energy Information...

The residential water heating market in the U.S. is dominated by storage water heaters with 96 percent share and roughly equal sales for electric resistance and natural gas heat sources. Over the last half decade, two water heating technologies have entered the market place bringing significant...

Quality Maintenance (QM) of residential heating ventilation and air-conditioning (HVAC) systems is defined by ANSI/ACCA Standard 4 (ACCA4) . To implement the standard, a technician needs to take measurements and do the analysis necessary to perform fault detection and diagnostics (FDD). In support...

The goal of this project was to develop a list of best-in-class for both PAR30 and PAR38 LED reflector lamps, that not only save energy, but also are likely to meet or exceed residential consumer expectations in their overall performance. In the case of lighting, this means excelling in visual...

During the summer of 2012, the Emerging Technologies program at PG&E collaborated with PG&E’s training center in San Francisco, the Pacific Energy Center (PEC), to update existing lighting installations– replacing what are now generally considered to be standard fixtures in terms of technology and...