Water Heaters

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  • 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,…

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    Heating and Cooling|Natural Gas|New Construction|Products|Regional Studies|Residential|Residential Buildings|Technology

  • Commercial HPWH Qualified Products List

    The Commercial/Multifamily HPWH Systems QPL contains information on Commercial and Multifamily products that meet the Advanced Water Heating Specification requirements. These products generally serve more than four dwelling units or a commercial load (as defined in the specification). Products can be integrated or split systems. Please contact us with any questions. Updated as of 2025 – Version…

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    Commercial + Industrial|Commercial Buildings|Products

  • Residential Heat Pump Water Heater Qualified Products List

    The Residential Heat Pump Water Heater (HPWH) Qualified Products List (QPL) contains information on Residential HPWH products that meet the Advanced Water Heating Specification requirements. These products are found in Single Family or low rise multifamily (in residential dwelling units). Please contact us with any questions. Updated as of 2025

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    Consumer Products|Products|Residential

  • Residential HPWH Product Assessment Datasheet (PADS)

    For residential heat pump water heaters (HPWH) to be considered for inclusion on the Qualified Products List, HPWH product vendors must complete and submit a Product Assessment Datasheet (PADS). The PADS outlines compliance with the requirements within NEEA’s “Advanced Water Heating Specification.”   

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    Consumer Products|Products|Residential

  • Q4 2024 Market Research and Evaluation Newsletter

    Greetings to all of you! Welcome to the Q4 2024 Market Research & Evaluation (MRE) newsletter. Inside are all the details about what NEEA’s MRE team has been up to the past few months, as well as what’s planned for the start of the new year. It’s been an eventful year. Nearly 40 studies were…

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    Agricultural|Commercial + Industrial|Natural Gas|Residential

  • Water Heater Flexible Load Conformance White Paper

    Utilities have used residential loads for providing grid services to utility customers for decades, particularly for demand response. However, the number of customers participating in such programs remains low. New Flexible Load Management strategies for providing grid services have the potential to accelerate customer participation. Efforts to improve customer participation and experience will result in…

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    Residential Buildings|Technology

  • Commercial HPWH Product Assessment Datasheet (PADS)

    For commercial heat pump water heaters (HPWH) to be considered for inclusion on the Qualified Products List, HPWH product vendors must complete and submit a Product Assessment Datasheet (PADS). The PADS outlines compliance with the requirements within NEEA’s “Advanced Water Heating Specification.”   

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    Commercial + Industrial|Commercial Buildings|Products

  • Advanced Water Heating Specification

    This document succeeds the Northwest Energy Efficiency Alliance’s (NEEA’s) previous Advanced Water Heating Specification (AWHS Version 8.0). This version includes substantial updates to Chapters 2 and 3. For residential water heaters, demand response requirements are met through OpenADR Alliance’s EcoPort certification, split-systems are qualifiable for interior and/or exterior applications, and Plug-ins will be evaluated with…

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    Products|Residential

  • Q2 2024 Market Research and Evaluation Newsletter

    The slightly slower pace and sunny days of summer are almost here. While NEEA’s Market Research and Evaluation (MRE) team has a lot of work to carry out through the warm months, things are slowing just a bit. This is evidenced by the slightly shorter than typical list of projects highlighted in this quarter’s newsletter.…

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    Commercial + Industrial|Natural Gas|Residential

  • Q1 2024 Emerging Technology Newsletter

    2024 is off to a strong start for the Emerging Technology team. In addition to the progress on existing efforts, several new projects got underway including testing of commercial heat pump dryers, a commercial secondary window field study in collaboration with the California Energy Commission, participation in the development of vacuum insulated panels for easy exterior building retrofits,…

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    Commercial + Industrial|Commercial Buildings|Consumer Products|Heating and Cooling|Industrial|Natural Gas|Products|Residential|Residential Buildings|Technology

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