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 2015. It includes a chapter on the joint key messages of the TEC and the CTCN for the Conference of the Parties (COP) at its twenty-first session, as well as separate chapters of each of the two bodies. The report of the TEC outlines the work carried out in 2015 in accordance with its updated rolling workplan for 2014–2015, covers the 10th and 11th meetings of the TEC and intersessional work and includes key messages for COP 21. The report of the CTCN describes its work in 2015, covers the 5th and 6th meetings and intersessional work of the Advisory Board of the CTCN, contains key messages for COP 21 and includes information provided by the United Nations Environment Programme on matters regarding its role as the host of the Climate
Technology Centre. All of the joint and individual key messages of the TEC and the CTCN for COP 21 are also contained in the annex.