The establishment of one of Denmark's largest ATES (aquifer thermal energy storage) energy systems to-date played a significant role in helping Copenhagen Airport achieve carbon-neutral status in 2019.
The groundwater-based geothermal energy plant is capable of delivering a cooling performance of up to 5 MWh. Installed in 2015, the life of the plant is estimated to be a minimum of 25 years, with a payback period of less than six years.
With the airport's refrigeration systems optimized, the groundwater-based geothermal energy system covers the majority of the energy consumption used for cooling the airport buildings. The ATES plant is cooling approximately 10 times as efficiently as the airport's previous energy plants.
Copenhagen Airports A/S has achieved a reduction in energy consumption by 4.5 GWh per year and, in turn, a profit of energy costs as high as 50 million by 2020 - only five years after the installation was completed.