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Development and Validation of Price and Load-Responsive Controls for 120-volt Heat Pump Water Heaters

This paper details a study led by the New Buildings Institute (NBI) and Lawrence Berkeley National Laboratory (LBNL) that conducted the first field tests on load-shifting capabilities of 120-volt heat pump water heaters (HPWHs) equipped with CTA-2045-enabled Universal Communication Modules (UCMs). Tests were performed across three utility territories in California over five months, using the Load Up (LU) signal in four tests and the Advanced Load Up (ALU) signal in one.

Lead Organization: Berkeley Lab

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Lawrence Berkeley National Laboratory (Berkeley Lab) is a Department of Energy (DOE) sponsored Office of Science laboratory and a lead with the Energy Efficiency and Renewable Energy’s (EERE) Buildings Technology Office (BTO), providing state, national, and global leadership in the development of interoperable and load flexible technologies, including grid-interactive efficient buildings (GEB) and Connected Communities.

CalFlexHub is made possible by the California Energy Commission and funded through the Electric Program Investment Charge (EPIC) Program.