Case study

Québec City Jean Lesage International Airport

Level 2

North America

Why did your airport decide to become accredited at Level 2-Reduction?

We have always planned our airport activities while trying to reduce our energy consumption. Our nearly $ 300-million construction work, including the rebuilding of the runways and the construction of a new terminal, was a great opportunity to modernize our energy equipment and make a survey to follow and reduce our energy consumption. Joining Airport Carbon Accreditation provides credible recognition of YQB’s day-to-day efforts and encourages our employees to operate responsibly.

Describe up to 4 key projects you implemented to reduce your emissions?

  • Heat recovery from the screw chiller to supply the hot water loop. This measure considerably reduces the amount of natural gas used for heating since heat released by the condensers of the screw chillers is injected into the hot water system when there is a cooling request together with a heating request (decrease 586 tCO2e).
  • Heat recovery on stale air by heat wheels. This measure makes it possible to capture the heat of the exhaust air and transmit it to the fresh air entering the terminal. Not only do the heat wheels recover the sensible heat, but they also recover latent heat, the humidity in the air, which saves heating and humidification. This measure causes a surplus of electrical energy of 649 GJ, but nevertheless allows a saving of gas 4,589 GJ for a net saving of 3,940 GJ (decrease 228 Teq CO2).
  • Geothermal. It is important to point out that geothermal energy, including the heat recovery of screw coolers, allows to substitute about 85% of the required heating energy and 78% of the cooling energy. Greenhouse gas savings are around 356 Teq CO2e per year.

What benefits does accreditation bring to your airport?

Improvement of our energy and environmental performance (and the reduction in associated operational costs), a strong commitment from various stakeholders for better performance, better recognition by the public, and motivation for additional efforts to reduce emissions.

What are your future carbon management plans?

Among other things, we will continue to take energy reduction measures, such as the purchase of seven aircraft preconditioned air units in 2019, the electrification of part of the fleet of light vehicles and the training of personnel on good driving practices. The goal is to reach level 3 in 2020 and level 3+ in 2022.

ACI Region North America
Passengers 1,615,750
Cargo (tonnes) NA