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Heat Pump Clothes Dryers in the Pacific Northwest – Abridged Field & Lab Study Report
This study presents a summary of lab and field research conducted by the Northwest Energy Efficiency Alliance (NEEA) from 2013 through 2016 on heat pump clothes dryers for the North American Market. NEEA developed a modified lab test protocol that adds four test cycles to the U.S. Department of Energy’s dryer test protocol. The additional…
Residential -
Flathead Electric & BPA
Building a smart grid the cooperative way Tucked in the mountains of Glacier Country in Northwest Montana, Flathead Valley’s grand landscapes and unspoiled freshwater lake attract recreationalists year-round. Legendary, small-town hospitality appears even in unexpected ways — like the local electric cooperative’s participation in the Pacific Northwest Smart Grid Demonstration Project. With 48,000 members, Flathead…
Residential -
Interaction between Heat Pump Water Heaters and Heating System
Water heating represents approximately 18 percent of residential energy consumption annually. Heat pump water heaters (HPWHs) offer an efficient option for residential water heating, because they have the ability to reduce water heating energy consumption by up to 63 percent. To achieve such high efficiencies, HPWHs employ a refrigeration cycle to move heat from the…
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Clothing Wear and Tear of Heat Pump vs. Electric Clothes Dryers with Addendum
Heat pump clothes dryers are significantly more energy efficient than conventional (ENERGY STAR®) electric resistance clothes dryers. The goal of this project was to determine whether heat pump clothes dryers offer non-energy benefits—specifically, reduced clothing wear and tear—that could help consumer adoption. Multiple machine types ran over 100 dryer cycles, using loads specifically chosen to…
Residential -
HPWH Lab Report_Sanden GAU_09.18.2013
Heat pump water heaters (HPWH) with an outdoor heat exchanger are a promising technology to more efficiently heat water. This project conducted lab tests of a variable-speed, CO2 refrigerant HPWH with the heat exchanger located in the outdoor unit. The testing plan included observing heat pump efficiency at a range of outdoor ambient temperatures from…
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Revising the TV Energy Use Test Procedure: Incorporating HDR and other Needed Changes
The measurement method of television energy consumption has been largely consistent within the United States for the last decade. TVs have improved remarkably in energy efficiency during that time. It is important to understand how much of those apparent energy savings are the result of fundamental improvements to TV technology itself versus optimizing how TVs…
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Energy Efficiency Financing: Barriers and Opportunities in the Small Utility Market
High upfront costs and a lack of easily accessible financing are key barriers to investments in energy efficiency (EE). This report assessed EE financing barriers and opportunities for small utilities, relying on interviews, literature reviews and case studies. Key barriers identified include: lack of staff time, lack of access to low-cost capital, and inability to…
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HPWH Lab Report_AO Smith_HPTU_12.09.2015
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the A. O. Smith HPTU Series heat pump water heaters (HPWHs) for northern climate installations. Cascade Engineering evaluated the HPTU Series using a testing plan developed by Ecotope to assess HPWH performance.
Residential