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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 -
Ductless Heat Pumps: 2025 Market Diffusion Evaluation #3
In the fall of 2024, the Northwest Energy Efficiency Alliance (NEEA) contracted with OWL Research Partners to conduct the third Market Diffusion Evaluation, formerly known as Long-Term Monitoring and Tracking (LTMT), of its Ductless Heat Pump (DHP) program. Since transitioning from active market development in 2020, NEEA has been monitoring the DHP market for signs…
Residential -
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|Natural Gas -
2025 CBSA Webinar #6 Slides
On June 16, 2025, staff from the Northwest Energy Efficiency Alliance (NEEA) and study implementer Westat presented information on the Commercial Building Stock Assessment (CBSA) data collection status and the plan for reporting the study’s findings. Every five years NEEA conducts the CBSA on behalf of the region. The CBSA catalogues characteristics and equipment impacting…
Commercial + Industrial -
Parking Lot Lighting Market Research
In order to better understand the Luminaire Level Lighting Controls (LLLC) market for parking lot lighting, the Northwest Energy Efficiency Alliance (NEEA) contracted with Cadmus to complete a qualitative research study with parking lot lighting decision-makers and contractors. For the research, Cadmus conducted interviews with these audiences to understand the factors that trigger a parking…
Commercial + Industrial -
Dual-Fuel HVAC White Paper
Advancing dual-fuel residential HVAC to achieve a reliable, resilient and affordable energy future. North America’s energy system stands at a pivotal juncture, necessitating innovative and multifaceted approaches to support future resilience and reliability. Integrating natural gas and electricity can be a flexible and resilient solution to meeting the growing needs of our energy system. Dual-fuel…
Commercial + Industrial|Natural Gas|Residential -
Code Savings Technical Assumptions Review
The Northwest Energy Efficiency Alliance (NEEA) contracted with Energy 350 to review three assumptions underlying the savings it reports for updates to energy codes for new construction buildings: Energy 350 found that most assumptions NEEA made to adjust code savings analyses were valid. The review team noted several areas where NEEA could improve assumptions either…
Commercial + Industrial|Natural Gas|Residential -
High Efficiency Gas Water Heater Research
In the spring of 2024, NEEA contracted with ILLUME Advising to improve understanding of the current residential gas water heater market, identify purchase motivators for people with high-efficiency gas equipment, and see if and where there is a market for a commercialized gas heat pump water heater (GHPWH). NEEA hypothesized that there was potential to…
Natural Gas|Residential -
Montana Residential Code Compliance Evaluation
The Northwest Energy Efficiency Alliance (NEEA) contracted with Industrial Economics, Incorporated (IEc) to conduct a residential code compliance evaluation in Montana that examined new construction single family homes built under the International Energy Conservation Code (IECC) 2018 and 2021 with Montana amendments. The main study objective was to assess statewide compliance with the 2018 and…
Residential -
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