Develop, test and demonstrate an advanced zero GWP space conditioning system for multi-family or small commercial applications that is based on a reversible ammonia (NH3) heat pump with carbon dioxide (CO2) distribution, for space heating and cooling applications. A prototype of this technology,...

The objective of this project is to evaluate the performance in the laboratory of a new-to-market 120-gallon commercial Heat Pump Water Heater and its ability to provide hot water in a more efficient manner and with lower total emissions. This water heater has a COP of...

Southern California Edison (SCE) provided a Letter of Commitment in support of LBNL’s proposal for the EPIC GFO 19-301 Group 4 EPIC solicitation, intending to cost share $300,000 ($150k / $150k from ET/DR). The project will develop and demonstrate an open-source energy and load management system...

Roof mounted, radiative sky cooling panel has a specialized film that cools when outside. These panels cool with minimal electricity, all day long throughout the year without evaporating water. The panels can be integrated into any new or existing refrigeration/HVAC system as an efficiency add-on...

Heat recovery ventilator (HRV) technology was evaluated as part of an EPRI research project funded by the California Energy Commission, titled the “Development and Testing of the Next[1]Generation Residential Space Conditioning system for California” [CEC EPC-14-021 project]. As part of the...

The goal of this project is to assess the energy and demand savings resulting from a solar assisted direct expansion (DX) system.  A field test was conducted in a 1,600 sq. ft. single-story residential home located within SDG&E territory. In this test, an emerging technology that consists...

Optimizing HVAC demands for residential cooling systems is becoming increasingly important in California as the electric grid becomes increasingly powered by renewable energy generation. Hydronic systems in general are particularly amenable to load shifting because they can be coupled to thermal...

The Pacific Gas and Electric Central Valley Research Homes (CVRH) project is the product of multiple years of effort by leading energy efficiency researchers and represents a significant investment of funding from the California Energy Commission, California Investor Owned Utilities (IOUs), and...

This research was performed to support the development and implementation of California’s Title 24, Part 6, Building Energy Efficiency Standards (“Title 24”), to better understand the potential energy and cost advantages of dedicated outdoor air systems (DOAS) and variable refrigerant flow systems...

Compare this hybrid exhaust fan airflow and power consumption to other products in the exhaust fan category. A test apparatus will be built to test powered exhaust fans delivering required airflow and static. The fan will also be installed in the field to determine a "real world" performance and...