The Project Purpose is to identify lessons learned while retrofitting residential homes to ZNE levels. Observations in the field during the ZNE retrofit projects will form the basis of this report. The expected outcome of this project is to educate builders, trades people as well as other...

Laboratory test of an indirect evaporative pre-cooler on the outside air intake of a packaged AC unit, along with a direct evaporative pre-cooler on the AC unit's...

Develop test protocol for uniformly evaluating performance of AC unit condenser air evaporative pre-coolers. The purpose of this project is to establish a nationally-recognized performance standard for the different types of technologies designed to pre-cool AC unit condenser air, using water...

Cook and hold cabinets are ovens with the ability to cook the food product and switch to holding mode to maintain product temperature and freshness. Ovens will be tested in a laboratory setting. This project will encompass applying an industry-accepted standard test method to up to five different...

Conduct field evaluation of the performance of a novel approach to cooling dairy cows by installing hydronic heat exchanger panels beneath the manure free stall beds. The project will measure energy consumption of the new system relative to the baseline high-speed low-volume fans and feed lane...

Field evaluation of vacuum sealing/packaging machines of 3 sites for use in supermarkets. Rather than leaving the heating element on continuously, the new unit activates the heating element used to seal packages only when the machine is in use. Same technology as was tesed in...

No-loss drains expel condensate from compressed air systems, with no associated loss of compressed air. They typically are installed at the compressor, air dryer, filter, storage tank, or at any low point in the piping where moisture might collect. No-loss drains open a valve only when signaled by...

The purpose of this project is to field-assess a Roof Top Units (RTU) retrofit technology that combines evaporative pre-cooling of AC unit condenser air with sensible pre-cooling of outside air. Assessment will study installation and operation issues, water consumption, peak kW reduction and kWh...

Retrofit to existing RTU that steps supply fan speed in response to calls for cooling or heating. Technology controls outside air in response to occupancy sensors and CO2 monitors. The purpose of this project is to review the effectiveness of the above...

The purpose of this project is to demonstrate zero-net-energy (ZNE) or near ZNE by retrofitting several homes by applying energy efficiency measures, demand response enabling technologies, and renewable generation source. This is a field demonstration project consisting of simulation, identifying...