Final Report United Illuminating Heat Pump Water Heater Pilot: Impact and Customer Acceptance Study

Date Published: June 4, 2010

Document Type: Report


Program Administrator:

United Illuminating


The Cadmus Group; Johnson Research, LLC

Author Names:

Beavers, David; Piantedosi, Matt; Brown, Sandra; Johnson, Russ


In 2009, United Illuminating (UI) hired The Cadmus Group, Inc. (Cadmus), with Johnson Research, LLC, to evaluate the performance of 11 heat pump water heaters (HPWH) installed under a pilot program. The primary objectives were to determine annual energy usage and savings and evaluate customer acceptance of the technology.

Efficiency Topics

EvaluationMeasure or Program Assessment