Showing results 11 - 20 of 35
The purpose of this project is to verify or refute many of the concerns raised by utilities regarding the ability of large tank HPWHs to perform DR by measuring the performance of HPWHs compared to ERWHs in providing DR services.
Prepared by: Pacific Northwest National Laboratory
Published: March 2015
Bonneville Power Administration partnered with the Electric Power Research Institute (EPRI) and Snohomish County PUD to be part of a national demonstration pilot for integrated heat pump water heaters (HPWH). 11 public utilities were selected to participate in this field test, which grew to 14 utilities.
Prepared by: Bonneville Power Administration
Published: October 2012
Prepared by: Bonneville Power Administration
Date: July 14, 2011
Event: HPWH Advisory Committee Meeting
Prepared by: Electric Power Research Institute
Date: March 1, 2012
Event: Building America Stakeholder Meeting
Performance Research Type: Research Study
This paper explores the laboratory performance of five integrated Heat Pump Water Heaters (HPWHs) across a wide range of operating conditions representative of US climate regions. Laboratory results demonstrate the efficiency of this technology under most of the conditions tested and show that differences in control schemes and design features impact the performance of the individual units. These results were used to understand current model limitations, and then to bracket the energy savings potential for HPWH technology in various US climate regions. Simulation results show that HPWHs are expected to provide significant energy savings in many climate zones when compared to other types of water heaters (up to 64%, including impact on HVAC systems).
Prepared by: National Renewable Energy Laboratory
Published: February 2012
This HPWH demonstration examines the overall performance of HPWHs installed in a conditioned space with a number of supply and/or exhaust ducting configurations, as well as the interactions between the HPWH and the home's heating/cooling system.
Prepared by: Pacific Northwest National Laboratory
Published: July 2014
Using the measurement and verification (M&V) plan developed by Ecotope to assess heat pump water heaters (HPWH), the AO Smith Voltex was evaluated at the National Renewable Energy Lab. This report is the third of three preliminary assessments of three different equipment models.
Prepared by: Bonneville Power Administration
Published: July 12, 2011
Using the measurement and verification (M&V) plan developed by Ecotope to assess heat pump water heaters (HPWH), the Rheem Hybrid HP50 was evaluated at the National Renewable Energy Lab. This report is the second of three preliminary assessments of three different equipment models.
Prepared by: Bonneville Power Administration
Published: July 12, 2011
Prepared by: Northwest Energy Efficiency Alliance
Date: unknown
This project describes market conditions, assesses barriers such as product availability, and presents options to increase participation in PG&E's residential water heater program.
Prepared by: Pacific Gas and Electric Company
Published: November 15, 2012