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Gas-Fired Absorption Heat Pump: Hybrid System Approach Field Study
Stone Mountain Technologies Inc. (SMTI) has developed a residential-sized gas-fired absorption heat pump designed for broad residential and commercial applications. These prototype systems were tested in the Chicago region at one multifamily building and two single-family homes, either replacing or supplementing existing natural gas heating equipment. The multifamily demonstration, supported by a boiler manufacturer and…
Commercial Buildings|Heating and Cooling|Natural Gas|Residential|Residential Buildings -
Q3 2025 Emerging Technology Newsletter
The Q3 2025 Emerging Technology Newsletter showcases a range of impactful work led by NEEA’s emerging technology and product management team. Some key activities include: Future newsletters will include links to the reports and activities above as they become available on neea.org. NEEA staff scan for new emerging technologies for all sectors and end uses.…
Commercial + Industrial|Industrial|Products|Residential|Technology -
Dual-Fuel Heat Pump Systems Analysis
The Northwest Energy Efficiency Alliance (NEEA) is exploring the potential of dual-fuel heat pumps for residential heating and cooling in the Northwest. To support this work, NEEA contracted with Larson Energy Research to develop a model that compares various technologies. The study used 2022 Residential Building Stock Assessment data to evaluate current and emerging systems,…
Heating and Cooling|Natural Gas|New Construction|Products|Regional Studies|Residential|Residential Buildings|Technology -
Calculating In Situ Fan Energy Index
As part of its Efficient Fans program, the Northwest Energy Efficiency Alliance (NEEA) contracted with Cascade Energy to conduct this research to gain additional insights into how energy-efficient fan systems perform in practice by comparing design-point Fan Energy Index (FEI) values with in field (in situ) performance outcomes. FEI is a standardized, unitless, design point…
Commercial + Industrial|Industrial|Products -
National Efficient Rooftop Unit Energy Modeling
The Northwest Energy Efficiency Alliance (NEEA) contracted with Resource Innovations and A2 Efficiency to conduct a modeling study on commercial HVAC efficiency measures for various types of commercial rooftop unit (RTU) equipment. The study sought to understand energy-savings potential across different climate zones and present a comprehensive analysis of these of these measures. The research…
Commercial + Industrial|Commercial Buildings|Heating and Cooling|Natural Gas -
Q2 2025 Emerging Technology Newsletter
The Q2 2025 Emerging Technology Newsletter highlights several exciting developments and updates of NEEA’s emerging technology efforts. Final reports are available for commercial heat pump dyers and residential heat pump rating representativeness studies. Look for final reports soon on the residential laundry field study, low load efficient heat pump investigation, tri-mode heat pump study, skinny…
Commercial + Industrial|Industrial|Products|Residential|Technology -
Commercial Heat Pump Dryers: Efficiency Testing, Operations Considerations, and Energy Savings
For over a decade, the Northwest Energy Efficiency Alliance (NEEA) has been working to advance the adoption of energy-efficient residential heat pump clothes dryers. Recently, NEEA shifted its focus to commercial tumble dryers after research revealed that improving the efficiency of commercial laundry could significantly expand the reach of energy-efficient laundry products to a broader…
Commercial + Industrial|Consumer Products|Products|Technology -
Q1 2025 Emerging Technology Newsletter
Welcome to 2025. This quarterly Emerging Technology update will highlight laundry products. As part of its long history with consumer products, NEEA started working on residential clothes dryers many years before ENERGY STAR® added that category. NEEA staff continue to explore innovations in laundry technology including residential and commercial heat pump dryers, all-in-one combination washers and dryers, and…
Commercial + Industrial|Industrial|Products|Residential|Technology -
Q3 2024 Emerging Technology Newsletter
The third quarter of 2024 brought exciting progress on several projects and kicked off several new research efforts. The second Residential Laundry Field Study is nearing completion, with the final report to be published by Q4 of this year, along with data analysis underway on commercial heat pump dryers and efficient rooftop units. A regional cold climate room…
Commercial + Industrial|Consumer Products|Natural Gas|Residential -
Q4 2024 Emerging Technology Newsletter
NEEA’s Emerging Technology team is concluding a successful 2024 with the completion of several key projects, including: The launch of a long-awaited field study on Luminaire Level Lighting Controls (LLLC) combined with HVAC control in a commercial building constitute a highlight of the year. Led by Senior Product Manager Chris Wolgamott, this study, delayed by the COVID-19 pandemic,…
Commercial + Industrial|Consumer Products|Residential