A REGIONAL TECHNOLOGY ROADMAP TO ENABLE THE ADOPTION OF CO2 HEAT PUMP WATER HEATER: A CASE FROM PACIFIC NW USA.

The quest of gadgets for homes that would reduce electricity bills, avoid kilowatt-hrs of electricity generation and minimize carbon foot print has sparked innovation of many energy efficient technologies. CO2 Heat Pump Water Heater (HPWH) is one such innovation led by Japan, the tech giant of the Pacific Rim. The product was developed over the last decade and many countries have configured the technology to local needs due to the benign nature and high efficiency potential of the technology. However, CO2 HPWH is yet to enter the Pacific Northwest market. Hence, detailed roadmap needs to be outlined for replacement of the existing less efficient water heaters and integration of the technology in the region. [ABSTRACT FROM AUTHOR]