Project Summary: Storage gas water heaters are the predominant residential water heating appliance used in Pacific Gas and Electric Company (PG&E) service territory and throughout California. Gas storage water heaters are characterized by low first cost, hot water delivery characteristics...

Some recent studies have performed preliminary investigations into the differences in efficiency and operation of furnaces, including the evaluation of high efficiency prototype blowers. Unfortunately there is no uniform, single method of testing and comparing airflow and efficiency of competing...

Project SummaryThis assessment project will determine the potential demand and energy savings, as a function of hotel room occupancy rates, for replacing existing guest room bathroom wall switches with wall switches with a built-in occupancy sensor and LED nightlight. This new energy efficiency...

Project SummaryThis report presents laboratory test data investigating the operation of an optical demand defrost system in a medium temperature open vertical refrigerated display case. In open vertical display cases, infiltration of warm and moist air into the cabinet is responsible for a...

Project SummaryThis project will demonstrate technologies in the area of air management, operation strategy, and/or heating, ventilation and air conditioning (HVAC) air-side economization. For more information, please contact the sponsoring organization.Related Reports Data Center Energy Efficiency...

Project Summary:The Dimmable Stairwell Lighting Case Study will determine the energy usage and cost impacts of a retrofit stairwell lighting project at the Fillmore Center in San Francisco. This project will 1) calculate the pre-install energy usage, 2) calculate post-install energy usage, 3)...

Project SummaryRetrofit two existing relocatables with IDEC system to assess ease of installation, equipment performance, impacts on energy usage and demand, and general impressions of classroom users. For more information, please contact the sponsoring...

Project SummaryThe development of reduced wattage 4-foot linear fluorescent T8 lamps and research into spectrally enhanced lighting have both provided new avenues for potential energy savings. This project takes a look at the two new areas to see if spectrally enhanced lighting can expand the...

Project SummaryAn indirect evaporative cooling technology has been developed and produced on a small scale under the brand name Coolerado Cooler. This project will purchase a single unit of an equivalent size to a 3 ton air conditioner (the average size installed in CA homes) and conduct...

Project SummaryThe first phase of an evaporative cooler technology evaluation project conducted 2003 tested the performance of advanced evaporative coolers (AECs) that used 8 inch thick rigid media. The results showed that advanced coolers are 68-70% more efficient than conventional coolers....