This report provides an overview of heat pump technologies and their applications, discusses building stock and the implications for the use of heat pumps in both new and old buildings and examines recent market developments. This report seeks to remedy that knowledge gap and support better informed decisions concerning the role of heat pumps. It provides an overview of heat pump technologies and their applications; discusses building stock and the implications for the use of heat pumps in both new and old buildings; examines recent market developments and the acceleration in heat pump deployment – particularly in Europe; and offers a detailed review of cost and performance trends for heat pumps by technology, system size and - in some cases - dwelling type.
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