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2019 Alliance Cost Effectiveness Model Review for Heat Pump Water Heaters
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc., to review the Alliance Cost Effectiveness (ACE) model for the Heat Pump Water Heater program. For the report, Ecotope focused on reviewing NEEA staff’s proposed method to aggregate Residential Building Stock Assessment II data so that the savings forecast reflects new “alternate” savings weights. These…
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Advanced Water Heating Specification v7.0
The Advanced Water Heating Specification Version 7.0 (AWHS Version 7.0) will stay up as reference for organizations. The newest version of the AWHS Version 8.1 succeeds the AWHS Version 7.0 and the more recent AWHS Version 8.0. If you have any questions and or insights please contact us. This specification provides guidance to manufacturers and other market…
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Robur Heat Pump Field Trial
The Robur air-source gas absorption heat pump (GAHP) has been identified as an efficient product for water and space heating in buildings in the Northwest. Utilization of a heat pump to heat water allows for a coefficient of performance that exceeds one, however actual heat pump performance varies throughout the year and is dependent on ambient…
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Northwest Heat Pump Water Heater Initiative Market Progress Evaluation Report #5
The Northwest Energy Efficiency Alliance (NEEA) contracted with NMR Group to complete the 5th Market Progress Evaluation Report (MPER) for the electric Heat Pump Water Heaters (HPWH) initiative. This report presents the findings of an evaluation conducted between February and July 2019. The study emphasized research with installers to better understand barriers to installing and…
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Northwest Heat Pump Water Heater Initiative: Market Progress Evaluation Report #4
In September, NEEA published the fourth Market Progress Evaluation Report (MPER) of its Heat Pump Water Heater (HPWH) program. By reviewing sales and pricing data, and through feedback from distributers, installers and recent purchasers, a third-party evaluator found: Additionally, a broad range of installers reported that customers followed their HPWH recommendations 30-50% of the time…
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Water Heater Market Characterization Report
This report characterizes both the supply and demand sides of the Northwest water heater market. The study highlights current trends in that market, based on an extensive online bulletin board and a quantitative survey designed to gather insights from purchasers of water heaters, as well as in-depth interviews with the supply chain. This report serves…
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Northwest Heat Pump Water Heater Initiative Market Progress Evaluation Report #3
The Northwest Energy Efficiency Alliance (NEEA) contracted with Cadeo and Research Into Action (the team) in October 2016 to complete the third Market Progress Evaluation Report (MPER) of its Heat Pump Water Heater (HPWH) Initiative. The overarching goal of the initiative is to create a federal standard for electric water heaters greater than 45 gallons…
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Interaction between Heat Pump Water Heaters and Heating System
Water heating represents approximately 18 percent of residential energy consumption annually. Heat pump water heaters (HPWHs) offer an efficient option for residential water heating, because they have the ability to reduce water heating energy consumption by up to 63 percent. To achieve such high efficiencies, HPWHs employ a refrigeration cycle to move heat from the…
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Northwest Heat Pump Water Heater Initiative Market Progress Evaluation Report #2
The Northwest Energy Efficiency Alliance (NEEA) engaged Evergreen Economics in August 2015 to conduct the second Market Progress Evaluation for NEEA’s Heat Pump Water Heater (HPWH) Initiative, also known as the Hot Water Solutions Program.
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HPWH Lab Report_Stiebel_220e_07.30.2015
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the Stiebel-Eltron Accelera 220 E heat pump water heater (HPWH) for northern climate installations. Cascade Engineering evaluated the Accelera 220 E using a testing plan developed by Ecotope to assess HPWH performance.