Bordeaux airport takes a significant step towards energy self-sufficiency

Bordeaux airport takes a major step forward in its energy transition with an innovative geothermal installation. In collaboration with Elcimaï Environnement, it is installing a geothermal loop fed by two deep boreholes at 120 meters, enabling it to cover 40 % of heating needs and 63 % of cooling needs. This initiative contributes to reducing greenhouse gas emissions, and is in line with the Group's strategy to reduce greenhouse gas emissions. Net Zero Emission emissions by 2030. By reducing primary energy consumption and promoting renewable energies, the airport is resolutely moving towards energy self-sufficiency for a sustainable future.

Bordeaux airport is demonstrating its commitment to innovation by integrating environmentally-friendly energy solutions. In partnership with a company specializing in geothermal project management, the installation of a geothermal heat pump system is a crucial step in the airport's energy transition. This initiative aims to drastically reduce the carbon footprint and make a decisive contribution to the objective of Net Zero Emission by 2030.

Innovative geothermal plant

The installation of a geothermal loop, based on a doublet drilled at a depth of 120 meters, makes it possible to harness the heat present in the Oligocene aquifer. The system, designed to meet the airport's energy needs, covers almost 40 % of annual heating requirements and 63 % of cooling requirements. The system provides the airport with an efficient, environmentally-friendly solution capable of significantly reducing greenhouse gas emissions.

Integrating sustainable technology

The use of geothermal is part of a comprehensive energy modernization and renovation plan. The system operates in heat pump mode, offering simultaneous heating and cooling solutions. Compared with older gas-fired boiler systems, this technology ensures greater energy efficiency, while saving space and significantly reducing pollutant emissions.

Ambitious goal of Net Zero Emission

The airport has incorporated geothermal energy into a series of measures already in place to reduce its energy consumption. Energy-efficient building renovation, the installation of photovoltaic panels and the purchase of green electricity complete this strategy. Thanks to the 700 kW of heat generated by the new system, the airport is gradually moving away from natural gas in favor of local renewable energies. All these actions are aimed at gradually eliminating direct (scope 1) and indirect (scope 2) emissions linked to energy consumption.

Strengthening local energy autonomy

The new facility significantly reduces primary energy consumption, with estimated savings of 1,058 MWhep per year. What's more, the savings achieved and the reduction in emissions of 486 tonnes of CO₂ equivalent each year reinforce the airport's energy autonomy and are part of a resilient approach to contemporary climate challenges.

A local, sustainable solution

Strategically located close to the runway and on the boiler room side to limit energy losses, the drilling and distribution system blends seamlessly into the airport's operating environment. This optimized location ensures efficient circulation of heat and cold, maximizing the installation's positive impact on the overall energy performance of the airport infrastructure.

Outlook for the future

By consolidating a business model geared towards renewable energiesBordeaux airport is a pioneer in the energy transition in the aviation sector. The implementation of innovative solutions such as geothermal energy, combined with other green initiatives, enables us to anticipate future environmental requirements while meeting growing energy needs in a responsible manner.

Bordeaux Airport on the road to energy self-sufficiency

Element Key	Advantage
System geothermal	Allows simultaneous heating and cooling, promoting energy autonomy.
Reducing emissions	Significant reduction in CO₂ and other greenhouse gases.
Energy transition	Active participation in the Net Zero Emission by 2030.
Strategic installation	Airside installation to minimize energy losses.
Innovative collaboration	Partnership with Elcimaï Environnement for cutting-edge technology.
Renewable generation	Generates around 700 kW of heat, supporting the gradual phase-out of natural gas.
Local impact	A stronger operating model aligned with climate and social issues.

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