Trieste Airport, not only a record number of passengers: 559 tonnes of CO2 will be reduced by 2025
Trieste has achieved 70 per cent renewable energy, cutting over 500 tonnes of CO2 by 2025
Key points
70 per cent of the energy needs produced by renewable sources and, thus, a abatement of CO2 emissions of 500 tonnes. These are the results achieved by Trieste airport in 2025, the year in which the historic record of passengers at the Friulian airport (1.6 million) was reached.
The storage system
In order to increase the use of renewable energy sources, Socomec, the international group specialising in the availability, control and security of low-voltage electricity grids, has developed an energy storage system that enables Trieste airport to cover its energy needs 70% from renewable sources, to reduce CO2 emissions by more than 500 tonnes per year and to reduce dependence on the electricity grid to 30% of annual consumption.
Thanks to storage, 24% of the demand was covered by the batteries previously charged with solar energy, and 46% directly by the photovoltaic system.
In addition to energy autonomy, the Bees (Battery Energy Storage System) has played a crucial role in the electrification of airport operations. Acting as a buffer between the chargers and the grid, the storage allows 42 electric vehicles to be recharged overnight without requiring new investments in the grid infrastructure. This has facilitated the electrification of 75 per cent of the ground vehicles, including baggage tractors and escalators, leading to a reduction in diesel consumption of about 14,000 litres per year and eliminating related emissions.
The environmental impact
The airport's direct CO₂ emissions were reduced by 559 tonnes per year. Furthermore, by optimising the input of 51 per cent of its renewable energy into the grid, the system avoided an additional 1,177 tonnes of emissions globally, contributing to the decarbonisation of the region.

