Since its launch in 2009, the ENERGY STAR® water heater program has given consumers independent validation of water heater efficiency claims and has helped manufacturers, distributors, plumbers, and retailers promote these products.

Prepared by:  ENERGY STAR®

Published:  September 2010

This consumer-facing web page offers overviews of different types of water heaters along with efficiency information and a product finder tool, among other resources.

Author: ENERGY STAR

Annual unit shipment data collected by the EPA for the ENERGY STAR Program from program partners and/or representative associations, used to project the market penetration of ENERGY STAR certified products. Reports for calendar 2010 to 2015 are available.

Prepared by:  ENERGY STAR®

Published:  2010-2015

Recently several manufacturers, including General Electric (GE), Rheem, AO Smith, Stiebel Eltron, and Air Generate, have introduced integrated HPWHs. Performance, installation, operation and maintenance, specifically related to the New England region are addressed.

Prepared by:  National Grid and Cape Light Compact

Published:  June 7, 2012

Because of the stakes involved, NEEP, with input from a range of regional stakeholders, developed this forward looking market strategy report to thoughtfully hasten the uptake of HPWHs. The report theorizes that such a deliberate approach will enable long term market growth leading to market transformation.

Prepared by:  Northeast Energy Efficiency Partnerships

Published:  December 2012

The Northwest Energy Efficiency Alliance (NEEA) engaged Evergreen Economics 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.

Prepared by:  Northwest Energy Efficiency Alliance

Published:  August 23, 2016

The CEE Overview of Heat Pump Water Heater Programs in the United States and Canada summarizes programs active in 2016 that were designed to promote the purchase and installation of efficient heat pump water heaters (HPWHs). The 56 CEE members included in this year's Program Overview span 33 US states, the District of Columbia, and one Canadian province. They collectively serve more than 60 million residents.

Prepared by:  Consortium for Energy Efficiency

Published:  October 2016