Lille - France

Resonor heating network

From coal to cogeneration, the evolution of an urban heating network towards clean and virtuous energy sources.

Challenge

The City of Lille (population 192,000) introduced an Agenda 21 in 2000. The main challenge nwas to take into account the rising degree of environmental concern shown by various players and to preserve the urban environment (air quality, visual impact, reducing polluting emissions, etc.).

In this context, the city entrusted Veolia Energy-Dalkia, via RESONOR, with the management of its urban heating network.

Objectives

  • Building an urban heating network by pooling production costs and preserving air quality.
  • Improving the energy efficiency of facilities, expanding the network and reducing heating costs, especially for those with low incomes.
  • Meeting the demand for information and consultation expressed by residents and their representatives.

Veolia Energy-Dalkia's solution

High performance technical solutions

  • Installing gas turbine cogeneration for simultaneously producing heat which is used to feed heating needs and to generate electricity resold to electricity utility EDF. This equipment makes it possible to achieve the economic and environmental goals set by the city.
  • Teleprocessing operating installations that produce heat and electricity, as well as the distribution network that supplies heat and hot water to buildings connected to the network.

A public, transparent, and participative approach

  • Reaching out to residents, in partnership with the city: organizing site visits, creating a commission in charge of information, supervision and innovation, producing a film.
  • Promoting site landscaping in cooperation with resident's associations (environmental integration of the facility).

Result
Heating costs reduced by an average of 15% for users.
Atmospheric SO2 releases down by 75%.
A total of 150 building boiler rooms using coal and oil eliminated.

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