Project SummaryAn ET project could help the resolve the existing impasse regarding ductless mini-splits in the market, and would need to have a field demonstration component which allows actual performance to be compared to central split system heat pumps and develops best practices for the design,...

Project SummaryDemonstrate and Assess High Performance Envelope strategies for commercial buildings and how they interact with Lighting, Daylighting and Office Equipment Loads to better T24 2013 Code compliance by...

Project SummaryIn this study, we demonstrated a fast DR system architecture for DR resources participation in ancillary services using the OpenADR 2.0b. One objective was to measure if response time would be 4 sec or less, with response time defined as time to send signal, get response, and...

Project SummaryIn support of California’s strategic plan to accelerate the penetration of energy efficiency technologies, this report presents the findings of a field evaluation of a plug load monitoring and control technology in an office building. The work was executed by Alternative Energy...

Project SummaryEvaporative cooling building technologies take advantage of the latent heat of vaporization for water to provide comfort cooling. Indirect evaporative cooling technologies achieve this without adding water vapor to the zone supply air. The technology studied here provides condenser...

Project SummaryTraditional, single speed space conditioning equipment operates in one of two states: either on or off. When single speed equipment is operating, it provides 100% heating or cooling output at a fixed efficiency based on the ambient conditions. In recent years, manufacturers...

Project SummaryThis report describes the results from field demonstration of evaporative pre-cooling technology on commercial HVAC (heating, ventilation, and air conditioning) equipment for SDG&E (San Diego Gas & Electric) at a field site in California climate zone 10. This study seeks to...

Project SummaryVariable capacity heat pumps (VCHPs) have the ability to deliver capacity below and above their nominal rated capacity by changing the speed of the compressor and modulating ancillary components like fans and expansion valves. This flexibility allows for similar component sizes...

Project SummaryThe goals of the project were: 1) to demonstrate the impact of precise light distribution of LEDs on energy efficiency and lighting quality 2) improve the lighting for broadcasting; 3) complete ballpark lighting control system to improve energy efficiency through control and allow...

Project SummaryCompared to all commercial buildings types, food service has the highest energy intensity (energy consumed per square footage), and restaurants consume three times more energy per square foot compared to the average commercial building. Water heating and cooling...