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Whey powder production site (Lactalis Group)

  • Centrale solaire thermique lactosol

Key Figures

  • Commissioning

    Q1 2023

  • Solar thermal collector area on trackers

    15,000 m²

  • Hot water storage volume

    3,000 m³

  • Expected annual production

    About 8,000 MWh

  • CO2 emission avoided per year

    2,000 Tons

  • Heat consumer introduction

    • One of the largest production sites for powdered dairy products in France
    • 80,000 tonnes of whey and lactose produced in a year
  • Principle of solar thermal integration

    • Preheating of fresh air feeding the main spray drying tower
    • Integration of 2 water/air exchangers : one in the main air inlet, one in the regeneration air inlet of the desiccant wheel
    • Fossil fuel saved: gas
  • Key innovation

    • Integration into a food process requiring demanding health and hygiene criteria
    • Achieve a solar coverage of 20% of the site’s drying needs
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