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Dual-Fuel Domestic Hot Water Feasibility Study
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope to conduct a feasibility study of domestic hot water systems that integrate commercial electric heat pump water heaters and natural gas water heaters, primarily in multifamily buildings. The study examined the technical feasibility, gas savings potential, market opportunity, design considerations, and regulatory requirements associated with these dual-fuel systems. …
Commercial + Industrial|Natural Gas -
Q2 2026 RETAC Meeting Notes
The Regional Emerging Technology Advisory Committee (RETAC) held their second quarterly meeting of 2026 on June 17th. Topics included a review of the research around heat pumps conducted by the Electric Power Research Institute, as well as an overview of current projects by the Emerging Technologies Collaborative (ETC), which is part of the Consortium for…
Commercial + Industrial|Residential -
Q2 2026 AHPC All Member Webinar
Recorded June 30, 2026 – The Advanced Heat Pump Coalition (AHPC) will hold its Q2 all-member webinar, with presentations from several work groups, who will provide updates on their current activities. The presentations for Q2 include: WG#2 – Roadmap and Manufacturer Engagement; WG#4 – Heat Pump Only Homes; and WG#10 – Heat Pump Program Management…
Residential -
Room Heat Pumps – An Update for 2026
Recorded June 23, 2026 – Room Heat Pumps are an emerging variant on the classic room air conditioner. The key difference is that new systems have defrost capability and can operate at temperatures below zero Fahrenheit. This presentation covers an update on current products in the market and high-level findings from field studies conducted in…
Residential -
Tri-Mode Heat Pumps
The tri-mode heat pump is a new type of residential heat pump solution that can provide space heating and cooling and domestic water heating from a single outdoor unit feeding multiple indoor units. The goal of this study was to understand the current market landscape for tri-mode heat pumps and how they compare to standard…
Residential -
HVAC Installation Contractor Market Research
The Northwest Energy Alliance (NEEA) contracted with Evergreen Economics to conduct qualitative research with residential HVAC contractors across Idaho, Montana, Oregon, and Washington. The study sought to understand how heat pumps are selected, installed, and configured in real-world practice. Through focus groups and in-depth interviews, research examined contractor perspectives on connected commissioning, cold-climate heat pumps, auxiliary electric resistance…
Residential -
Variable Speed Heat Pump Load Flexibility Modeling
Variable speed heat pumps (VSHP) and cold climate air source heat pumps (ccASHP) have gained increased attention for their potential to support utility end-use load flexibility programs while maintaining customer comfort. VSHPs can be programmed to respond to grid signals, adjusting unit energy consumption by varying the compressor and fan speeds. Very limited data are available to quantify VSHP…
Residential -
Home Energy Metering Study Data Standardization and Peak Load Analysis
The Home Energy Metering Study (HEMS) collected one-minute, circuit-level energy use data from more than 400 homes across the Northwest between 2018 and 2026, resulting in a dataset of more than 14 billion data points. The HEMS Data Standardization and Peak Load Analysis, prepared by Resilient Edge and Linden Clean Energy, draws on data from…
Residential -
End-Use Load Research Commercial Energy Metering Study – Final Report
NEEA and its partners launched the End‑Use Load Research (EULR) project, which collected high‑frequency energy use data from residential and commercial buildings, including the Commercial Energy Metering Study (CEMS) focused on key HVAC end uses in office and retail buildings. This report summarizes the breadth of data collected through the CEMS and was prepared by…
Commercial + Industrial