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STELLANTIS Caen Plant (14)

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STELLANTIS Caen Plant (14)

The Project

The project is part of the corporate strategy to reduce carbon emissions and to achieve material industrial water savings. It involves the integration of a groundwater geothermal energy system (nappe) to heat the buildings while cooling the industrial processes.
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This pilot project, initiated and funded by Stellantis, validated the potential of the geothermal energy system. Such system is currently considered for a future roll out in other assembly plants.

Our Role

Géothermaq was involved in the initial phase of the project as a subcontractor to the main HVAC engineering firm. As part of a comprehensive study to draft the HVAC master plan, waste heat recovery and a geothermal energy system were selected for this project.

After the initial study demonstrated the viability of the geothermal solution, Géothermaq entered into a direct contract with the project owner to carry out the remaining work through to the facility’s commissioning.

  • First Assessment and Feasibility Study
  • Design, supervision, and interpretation of pumping and injection tests.
  • Final sizing of the subsurface system.
  • Supervision of the construction of a groundwater dual-well system: drilling of a 60-meter producer and rehabilitation of an injection well.
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
STELLANTIS Caen Plant (14)
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The Benefits

  • Workshop Heating - Significant Reduction in Gas Consumption
  • ‍Control of energy costs- Reduced exposure to volatility of energy markets.
  • Positive environmental impact on CO₂ emissions related to the reduction in gas consumption.
  • ‍Greater plant resilience to climate change - By replacing cooling towers with a geothermal cooling system, the plant performance remains unaffected during heat waves and droughts.
  • ‍Positive environmental impact on water consumption: Unlike cooling towers, our geothermal energy system doesn't consume water.
  • ‍Simplified operation: Our geothermal energy system doesn't  require legionella testing nor biocide consumption.

Key Figures for the Project

8,500 MWh

Annual gas savings.

1 800t

75 % reduction in CO2 emissions related to gas consumption.

12,000m³

Water saved annually.

400 k€

Annual savings on gas purchases.

Partners

Naldeo
Foradour
Ubbak

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