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Heat Pump Water Heater Market Research: Challenging Installations Scenarios
In 2019, the Northwest Energy Efficiency Alliance (NEEA) created a framework for understanding and investigating various scenarios associated with challenging installations of heat pump water heaters (HPWHs). To better inform the scenarios identified in the framework, NEEA contracted with Cadeo Group in the summer of 2020 to explore the different challenging installation experiences installers faced…
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Central Heat Pump Water Heaters for Multifamily Supply Side Assessment Study
The Northwest Energy Efficiency Alliance (NEEA) contracted with New Buildings Institute (NBI) in January 2021 to conduct research and outreach to better understand the current landscape of central heat pump water heater (HPWH) adoption in multifamily buildings. Research objectives included 1) Identifying all primary barriers to central HPWH adoption, 2) Increasing understanding of the value…
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Heat Pump Water Heaters in Small Spaces Lab Testing: “The Amazing Shrinking Room”
The Northwest Energy Efficiency Alliance (NEEA) contracted with Larson Energy Research and Cascade Engineering Services, Inc. to conduct a laboratory assessment of space requirements and venting strategies for standard unitary heat pump water heaters (HPWH). The laboratory testing provides detailed information about known but previously unquantified challenges for HPWH efficiency in enclosed rooms. Interpretation and…
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Heat Pump Water Heater Benefit/Cost Model Review
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope to review the alliance’s current heat pump water heater benefit/cost model. Study objectives included 1) A review of the methodology used to estimate a specific manufacturer’s annual unit shipments to the region, and; 2) An assessment of NEEA’s naturally occurring market baseline logic, originally developed in…
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Plug-In Heat Pump Water Heaters: An Early Look to 120-Volt Products
The Northwest Energy Efficiency Alliance (NEEA) contracted with Larson Energy Research and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the Rheem 120-volt heat pump water heaters (HPWH), a new class of HPWH coming to market that can operate on a 15-Amp, 120-Volt circuit. This report seeks to answer questions about their performance…
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Pricing Research for Efficient Water Heaters
In the fall of 2021, the Northwest Energy Efficiency Alliance (NEEA) contracted with ILLUME Advising and Lieberman Research to conduct a two-phased study to better understand price sensitivity of Northwest homeowners regarding efficient water heaters for both natural gas and electric fuel types. The study also explored scenarios under which consumers would consider alternative approaches…
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CTA-2045 Water Heater Demonstration Project
The Northwest Energy Efficiency Alliance (NEEA) supported the Bonneville Power Administration (BPA) with this CTA 2045 Water Heating Demonstration project. The project sought to create a market transformation plan that would put the Northwest on a path to make hot water heating load shifting simple for customers without affecting their lifestyle. To do this, the…
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Advanced Water Heating Specification v8.0
The Advanced Water Heating Specification Version 8.0 (AWHS Version 8.0) will stay up as reference for organizations. The newest version of the AWHS Version 8.1 succeeds the AWHS Version 8.0 and was made available in July 2024. If you have any questions and or insights please contact us. This specification provides guidance to manufacturers and other market actors…
Residential