Acknowledgements These Technical Specifications were researched and written by Leonidas Anthopoulos (Technological Education Institute of Thessaly), Paolo Gemma (Huawei), Ramy Ahmed (National Telecom Regulatory Authority, Egypt), Ziqin Sang (Fiberhome Technologies), Flavio Cucchietti (Telecom Italia), Zhen Luo (Fiberhome Technologies), Jia Guo (Fiberhome Technologies), Lei Gu (China Telecom) and Yuanyuan Liu (China Unicom), as a contribution to ITU‐T Focus Group on Smart Sustainable Cities (FG‐SSC). Additional information and materials relating to this report can be found at: www.itu.int/itu‐t/climatechange. If you would like to provide any additional information, please contact Cristina Bueti at tsbsg5@itu.int.