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Ductless Heat Pumps & Demand Response
Ductless heat pumps represent one of the fastest-growing electrification segments, but unlocking their value as grid resources requires rethinking traditional demand response approaches. Unlike central systems, each mini-split offers smaller, distributed load—often just a fraction of a kilowatt—while also relying on proprietary, inverter-driven controls that limit integration with conventional thermostats. These systems don’t behave well…
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 -
End-Use Load Research Home Energy Metering Study – Final Report
This is the final report for the residential End-Use Load Research (EULR) project Home Energy Metering Study (HEMS), conducted by Evergreen Economics. 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. This report examined…
Residential -
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 -
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 -
Energy-Efficient Technology in Cold Weather – Bridger View On-Site Research
The Northwest Energy Efficiency Alliance (NEEA) contracted with JG Research & Evaluation, LLC in the fall of 2021 to conduct a study of the new Bridger View housing development in Bozeman, Montana. The purpose of the study was to better understand how a cold weather climate may influence the adoption and performance of various technologies…
Residential -
Ductless Heat Pumps 2022 Long-Term Monitoring and Tracking Report
This is the second Long-term Monitoring and Tracking (LTMT) evaluation of the Northwest Energy Efficiency Alliance’s (NEEA) Ductless Heat Pumps (DHPs) Market Transformation program. NEEA actively worked to accelerate adoption of DHPs from 2008 to 2020. The objective of this LTMT study was to gauge adoption of DHPs by the Northwest’s residential HVAC market, specifically…
Residential -
Study of Influences on Northwest Variable Speed Heat Pump Adoption
The Northwest Energy Efficiency Alliance’s (NEEA) Variable Speed Heat Pump (VSHP) program contracted with Lieberman Research to conduct qualitative market research about influences on ducted VSHP market adoption in the Northwest. Research objectives included 1) Determining influences on central ducted VSHP sales in the Northwest, including direct and indirect influences from NEEA’s Northwest Ductless Heat…
Residential -
Demand Response of Residential HVAC
To ensure the continued availability of energy-efficient products, services and practices to Northwest consumers, the Northwest Energy Efficiency Alliance (NEEA) conducts exploratory work to identify, develop and advance promising energy efficiency technologies and opportunities. As part of these research efforts, NEEA contracted with Cadeo to understand the demand response (DR) potential of residential HVAC equipment…
Residential