Glenn BaxterPanarat SrisaengGraham Wild2025-03-102025-03-102018Resources2079927610.3390/resources70200322-s2.0-85048930704https://repository.dusit.ac.th//handle/123456789/4941Airports play a critical role in the air transport value chain. Each air transport value chain stakeholder requires energy to conduct their operations. Airports are extremely energy intensive. Greenhouse gases are a by-product from energy generation and usage. Consequently, airports are increasingly trying to sustainably manage their energy requirements as part of their environmental policies and strategies. This study used an exploratory qualitative and quantitative case study research approach to empirically examine Copenhagen Airport, Scandinavia's major air traffic hub, sustainable airport energy management practices and energy-saving initiatives. For Copenhagen Airport, the most significant environmental impact factors occurring from energy usage are the CO2 emissions arising from both the air side and land side operations. Considering this, the airport has identified many ways to manage and mitigate the environmental impact from energy consumption on both the air and land side operations. Importantly, the application of technological solutions, systems and process enhancements and collaboration with key stakeholders has contributed to the airport's success in mitigating the environmental impact from energy usage at the airport whilst at the same time achieving energy savings. � 2018 by the authors.All Open Access; Gold Open Access; Green Open AccessAirportsAquifer thermal energy storage (ATES)Copenhagen AirportEnergyLight-emitting diodes (LED)Solar panelsSustainabilityArticleScopus