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Smarter Together Site Lyon


Project status



Lyon is one of the lighthouse cities in the SMARTER TOGETHER project. The demonstration area in focus is Lyon-Confluence, one of the largest urban redevelopment projects in France (150 ha – 600 000 m² existing floor area – 1 million m² of new buildings) and an area of many urban innovations. With SMARTER TOGETHER, Lyon-Confluence heads towards zero-carbon objectives, which means that after the implementation phase the annual greenhouse gases emissions of the buildings must not be superior to the level of emissions at the beginning of the project, despite an increase in built area (1 000 000 m² of new constructions), population and activities in the area.

Demo Site Expected Impact

* Detailed information regarding the technical and financial performance will be available at a later stage.

With SMARTER TOGETHER, Lyon aims to:

  • refurbish 35 000 m2 of existing buildings to reduce their energy consumption;
  • develop local renewable energy generation: photovoltaic systems (1 MWp) and a wood-fired cogeneration power plant (2 MWe/4 MWth);
  • reduce the use of conventional cars by providing alternative means of transport for inhabitants: smart charging stands, an electric vehicle car-sharing system and an autonomous driverless electric shuttle;
  • feed the existing Grand Lyon smart data platform with news set of data to better monitor energy production and consumption in the area, and the actual effects and benefits of measures implemented to reach the zero-carbon objective;
  • involve citizens in the redevelopment of the Lyon Confluence area and the implementation of new services (creation of an urban living lab to allow citizens and users to co-design the smart city solutions);
  • increase the inhabitants’ quality of life through the construction of comfortable and affordable dwellings and offices, convenient public spaces, easy access to the district, etc.


Buildings and energy

* Detailed information regarding the technical and financial performance will be available at a later stage.

Some measures to be implemented in Lyon-Confluence within the SMARTER TOGETHER project are:

Energy efficiency in buildings

  • Retrofitting the building envelope
    • Reducing energy consumption by refurbishing an area of 35 000 m2 of existing buildings (private housing, social housing, office spaces and public buildings)

Energy systems integration

  • District heating and cooling
    • Renewable district heating
  • Cogeneration (CHP)
    • SMARTER TOGETHER includes the construction of a wood-gas fired cogeneration power plant of 2 MWe/4 MWth, connected to the district heating
  • Photovoltaics (PV)
    • Four photovoltaic systems are constructed to achieve a total power of approximately 1 MWp, which comes in addition to the 1 MWp of photovoltaic systems already existing in the Lyon-Confluence area.

Mobility & Transport

  • Clean fuels and fuelling infrastructure
    • Smart charging stands
  • Electric, hybrid and clean vehicles
    • Autonomous driverless electric shuttle
  • Car sharing
    • Electric vehicle car-sharing system


  • Building energy management system
  • Neighbourhood energy management system
  • Urban data platform
    • Provision of new sets of dynamic data to the Grand-Lyon data platform from the energy and sustainable mobility sector collected from various sources – smart power and heat meters, building energy management system, shared electric mobility services, energy production systems in the area, such as photovoltaic systems, and the district heating power plant plant - in order to monitor energy generation and consumption in the area and assess the actual energy performance of buildings

Building aspects

  • Building Energy Services
  • DHW (only)
  • Building Energy Services
  • heating (only)
  • Building Energy Services
  • heating and DHW
  • Building Energy Services
  • lighting and appliances
  • Installed Renewable Energy Sources
  • photovoltaic
  • Technology used to supply the buildings
  • boiler
  • Technology used to supply the buildings
  • district heating (DH) network
  • Technology used to supply the buildings
  • electrical equipment
  • Technology used to supply the buildings
  • electrical heating system
  • Technology used to supply the buildings
  • heat pump: compression

Energy Carriers

  • Domestic gas - grid-bound
  • Electricity
  • Heat/district heat
  • Solar thermal energy

Mobility Type of Intervention

  • Vehicles

Thematic Field

  • Energy System(s) Integration
  • Mobility and Transport
  • Refurbished Building(s)

Demo Site Project Refurbishment 35 Smith

View more visualisations of Smarter Together Site Lyon


Etienne Vignali
SPL Lyon-Confluence