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Study: Paris’s cooling needs in 2100

A prospective study on the future of cooling systems in Paris for the Urban Planning department of the City of Paris.

Study on the future of cooling systems in Paris: doing nothing would be costly scenario in terms of both energy and comfort © EliothThis project was about putting forward an approach that could limit the impact of cooling in the Paris area, based on a diagnostic review of the existing situation and a forward-looking approach to climate change (modelling based on the IPCC’s A2 scenario and the ARPEGE Climate model developed by Météo-France). “Doing nothing” is a costly scenario in terms of energy and comfort, and would create significant disparities between neighbourhoods. Phenomena like the “thermos effect” of recent buildings, along with the issue of releasing the heat generated by internal uses, were observed in particular.

It is possible to reduce cooling needs and choose cooling methods with lower impacts:

  • Densifying ground vegetation.
  • Choosing materials with high albedos (limiting the absorption of solar radiation).
  • Controlling anthropogenic heat generation.
  • Reducing internal heating in buildings.
  • Facilitating access to district cooling systems
  • Developing geothermal energy on shallow aquifers and energy geo-structures.
  • Relying on “thermal smart grids”.
  • Encouraging the development of alternative cooling systems for buildings.
  • Contributing to the sharing of feedback.

The study seeks to describe solutions at various levels, from individual buildings to the overall urban space, not to mention the essential awareness raising among stakeholders and users of the city.