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Maximizing Mini-Split Performance Report
The Northwest Energy Efficiency Alliance (NEEA) contracted with Sustainabilist to review and document ductless heat pump (DHPs or mini-split heat pumps) research and evaluations conducted over the past 15 years. The report explores why utility programs are not achieving the level of savings that were achieved in pilot programs and field tests and presents a…
Heating and Cooling|Products|Regional Studies|Residential|Residential Buildings|Technology -
Combi System Field Study
The Northwest Energy Efficiency Alliance (NEEA) contracted with Energy 350 and ILLUME Advising, LLC to conduct field testing to demonstrate performance of combi systems in cold northwest climates and identify potential barriers to market adoption. According to results from this field study, combi systems, also known as combination water and space heating systems, save more…
Heating and Cooling|Natural Gas|Products|Residential|Technology -
Laboratory Assessment of Rheem Generation 5 Series Heat Pump Water Heaters
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc., Cascade Engineering Services, Inc. and Larson Energy Research to conduct a laboratory assessment of Rheem’s next generation (Generation 5 or “Gen5”) heat pump water heaters (HPWH). The water heater series consists of two distinct lines: Premium/Plus and Builder, each aimed at different market segments. Each line includes…
Consumer Products|Products|Residential -
Coming Clean: Revealing Real-World Efficiency of Clothes Washers
The Northwest Energy Efficiency Alliance (NEEA) contracted with Kannah Consulting to better understand the real-world energy efficiency of consumer clothes washers. The research focused on washers’ impact on the energy use of the clothes dryer (drying energy). The project had two key objectives: 1) enable updates to regional unit energy consumption (UEC) and unit energy…
Consumer Products|Products|Residential -
Energy Savings from Networked Lighting Control Systems With and Without Luminaire Level Lighting Controls
Connected lighting currently comprises less than one percent of all luminaires in the United States, but the Department of Energy (DOE) estimates that it can provide up to one quad of energy savings by 2035. And, by 2035, just under a third of installed luminaires in commercial buildings are expected to have network connectivity. In an…
Commercial + Industrial Lighting -
Luminaire Level Lighting Controls Replacement vs. Redesign Comparison Study
The Northwest Energy Efficiency Alliance (NEEA) in conjunction with the University of Oregon’s Energy Studies in Buildings Laboratory completed the Luminaire Level Lighting Controls (LLLC) Replacement vs. Redesign Comparison Study in August 2020. LLLC systems have made significant advancements in recent years as a lighting solution that integrates daylight harvesting and occupancy sensing controls into…
Commercial|Commercial + Industrial Lighting|Integrated Systems -
EXP07:19 Load-Based and Climate-Specific Testing and Rating Procedures for Heat Pumps and Air Conditioners
This report contains the results and analysis from initial testing done using the 2019 “technical review” version of CSA EXP07 load based test procedure and rating of heat pumps on. This test procedure and rating was designed to better characterize variable capacity heat pumps with capacity not larger than = 65,000 BTUh. These preliminary results…
Heating and Cooling|Residential -
Power Drive Systems – Energy Savings and Non-Energy Benefits in Constant & Variable Load Applications
As part of the scanning work for Extended Motor Products opportunities, the Northwest Energy Efficiency Alliance (NEEA) contracted with Cadeo Group to execute research on Power Drive Systems (PDS). PDS offer significant energy savings potential in commercial and industrial applications. However, while adoption of PDS has increased steadily since the mid-20th century, several barriers remain…
Agricultural|Commercial|Commercial Buildings|Industrial|Technology -
Market-Ready High-Performance Walls: Phase 2 Report
The construction of high performance or “advanced” walls represents a significant energy efficiency opportunity for the regional new home construction sector. This report provides information about moisture management, benefits of the wall systems, construction best practices, and code compliance resources. It documents the detailed process, components, and estimated costs of three highly energy efficient wall system…
Residential|Residential Buildings -
Market-Ready High-Performance Walls: Phase 1 Report
The construction of high performance or “advanced” walls represents a significant energy efficiency opportunity for the regional new home construction sector. This report documents the detailed process, components, and estimated costs of three highly energy efficient wall system archetypes: This is the first of two reports that NEEA commissioned Earth Advantage Inc. to produce. This…
Residential|Residential Buildings