CABA Information Series
(IS-2013-84) Emerging hot water technologies and practices for energy efficiency
This report from the American Council for an Energy-Efficient Economy examines 16 methods for improving the efficiency of water heating equipment. The expected savings is about 37% of energy costs for water heating and 5% of overall energy costs for homes and buildings. Seven of the 16 methods are cost-effective today, and 11 of 16 become effective with mature market costs. Shifts from centralized water heaters to distributed equipment is anticipated.