This project researched the potential for 120-volt heat pump water heaters in the Midwest in local markets to identify technological barriers, opportunities, measurement, and market potential.
The research revealed a significant opportunity for this technology in Wisconsin. Other key findings of the research and modeling include:
- The 120V HPWH can provide enough hot water in Wisconsin to satisfy up to 4-6 occupant single family homes in Wisconsin.
- The 120V has lower operating costs than propane, natural gas, and electric resistance water heater.
- The 120V and 240V HPWH both have higher equipment costs than propane, natural gas, or electric resistance water heaters.
- Installing 120V HPWHs avoids significant and costly electric upgrades compared to its 240V counterpart.
- The 120V HPWH uses significantly less energy than propane or natural gas water heaters.
- The 240V HPWH has small energy performance advantages over the 120V.
- Installed 120V HWPHs will have larger storage tanks than the replaced natural gas or propane water heaters, which adds cost and limits space-constrained installs.
- Supply chain emphasizes consumer demand and supportive programs.
- Performance relies on ambient conditions.
- Distributors, plumbers, and code enforcement officials are uncertain about the performance of 120V HPWH causing a barrier to wider adoption of the technology
Timeline: May 2022- December 2022
Final Report- December 2022
Final Report Presentation- December 2022
Back to Future Focus Initiative