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Low-Load Efficient Heat Pump Investigation: 2020 – 2025 Summary Report
The Northwest Energy Efficiency Alliance’s (NEEA) Advanced Heat Pump program is working to transform the market for high efficiency residential heat pumps. A key focus for the program is improving product differentiation so consumers and industry professionals can easily identify systems that deliver cost-effective performance to make more informed purchase decisions. One important differentiator the…
Residential -
Q4 2025 RETAC Meeting Notes
The Regional Emerging Technology Advisory Committee (RETAC) held their fourth quarterly meeting of 2025 on December 4th. Topics included a discussion about Central Commercial Heat Pump Water Heaters, an emerging technology update from Energy Trust, as well as an overview and review of key projects by the National Lab of the Rockies.
Commercial + Industrial|Residential -
Q4 2025 RETAC Agenda Packet
The Regional Emerging Technology Advisory Committee (RETAC) will hold their fourth quarterly meeting of 2025 on December 4th. Topics include a discussion about Central Commercial Heat Pump Water Heaters, an emerging technology update from Energy Trust, as well as an overview and review of key projects by the National Renewable Energy Laboratory.
Commercial + Industrial|Residential -
Commercial HVAC Specifier Market Research: Gas High Efficiency DOAS
The Northwest Energy Efficiency Alliance (NEEA) contracted with OWL Research Partners to conduct market research with commercial HVAC specifiers to inform NEEA’s understanding of the market for gas high-performance HVAC systems. Data collected in summer 2025 explored opportunities and barriers for adding gas to NEEA’s High-Performance HVAC program, characterized the market landscape, and assessed specifiers’ perceptions of system configurations in hypothetical scenarios aligned with the program’s targeted approach. The study found that…
Commercial + Industrial|Natural Gas -
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 + Industrial|Natural Gas|Residential -
Q3 2025 RETAC Meeting Notes
The Regional Emerging Technology Advisory Committee (RETAC) held their third quarterly meeting of 2025 on September 24th. Topics included a committee “round robin” discussion of energy efficiency initiatives within the region, and an update on emerging technology projects from Puget Sound Energy.
Commercial + Industrial|Natural Gas|Residential -
Q3 2025 RETAC Agenda Packet
The Regional Emerging Technology Advisory Committee (RETAC) will hold their third quarterly meeting of 2025 on September 24th. Topics include a committee “round robin” discussion of energy efficiency initiatives within the region, and an update on emerging technology projects from Puget Sound Energy.
Commercial + Industrial|Natural Gas|Residential -
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,…
Natural Gas|Residential