This report covers the respective activities and the performance of the respective functions of the Technology Executive Committee (TEC) and the Climate Technology Centre and Network (CTCN) in 2014. It includes a chapter on the joint key messages of the TEC and the CTCN for the Conference of the Parties (COP) at its twentieth session, as well as separate chapters on the activities and performance of each of the two bodies. The report of the TEC outlines the work carried out in 2014 in accordance with its rolling workplan for 2014–2015, and includes key messages for COP 20. It covers the outcomes of the 8th and 9th meetings of the TEC and its intersessional work. The report of the CTCN describes its work in 2014, covers the outcomes of the 3rd and 4th meetings and intersessional work of the Advisory Board of the CTCN, and includes information provided by the United Nations Environment Programme on matters regarding its role as the host of the Climate Technology Centre.