ALIGHT - Sustanaible Aviation



Implementation of sustainable aviation fuels and renewable energy for airport operation will enable a green transition. 

More than 99 % of airline emissions and approximately 50 % of airport emissions are related to the combustion of jet fuel ( Further emissions are also related to airport operation.

Upcoming fuels can reduce CO2 further

With electrofuels from Power2X, it is possible to achieve further CO2 reduction.

In the long term, 

electric powered aircrafts, hydrogen fuel and hybrid versions could reduce CO2 further. Such propellants are being developed and will be involved in the project if applicable.

SAF based on sustainable resources

Sustainable aviation fuels could be based on household waste, wood residuals, used cooking oils and perhaps crops or residues containing the necessary energy raw materials.  


Sustainable, also referred to as advanced, fuels for aviation should use sustainable resources to produce a fuel that can substitute traditional jet fuel without using or harming food, biodiversity, forest- and water resources, humans or animals.


Reduction of NOx and particles 

It is expected that the introduction of SAF and renewable energy will significantly reduce ultrafine particles and the concentration of NOx in and around the airport.

CO2 free renewable energy

Regarding energy for airport operation, electricity is the preferred sustainable and renewable energy carrier to take over from fossil energy.


Wind and solar energy

Electricity from wind turbines and photovoltaic-systems is CO2 free energy at competitive prices. Electrification and energy storage is crucial when greening airport operations. Furthermore, incorporating flexible solutions reducing energy consumption and ensuring smart energy management will be implemented.



E-mobility, in terms of both passenger transport and ground handling equipment, will reduce CO2 and other air pollutants immediately.


The goal is for transport to reach Net Zero by 2030 and for the entire airport to reach Net Zero by 2050.

CPH climate goals:

  • Be a green powered airport (using renewable energy)
  • Have lean, green and clean ground transport (fossile free equipment and transport)
  • Accelerate Net Zero aviation

2030: Net Zero airport and ground transport 

2050: Net Zero total airport operations

Sustainable aviation fuel will reduce CO2 

Sustainable aviation fuel (SAF) is one of the key elements in achieving the climate goals. SAF has the potential to reduce the overall carbon footprint up to 80 %.

Bio-kerosene (biofuel) will be used in ALIGHT and possibly also upcoming electrofuels.