KELP

Industry · Glass · 30,000 m³

Glass-ceramic manufacturer · High energy performance condenser

  • 11,600 t CO₂/yr
  • 1 year, furnace by furnace
  • 561,279,002 kWh cumac
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Crane lift of an adiabatic dry cooler onto the factory roof

The finding

(TAR) at the end of their life, the heat of three production furnaces entirely lost, and a building with 13 m of ceiling height impossible to heat evenly.

What KELP did

KELP replaced the end-of-life cooling towers with five and two new cooling towers, with helicopter lifts, around ten crane lifts and two rental to keep the furnaces cooled.

The result

Production never stopped.

11,600 t CO₂/yr

CO₂ avoided across the whole site

Equal to the annual carbon footprint of about 1,400 French people, or 82 million km driven every year in a petrol or diesel car

The site has 9 operations: the CO₂ avoided, the CEE volume and the project duration are for the whole site.

Energy savings certificates (CEE)

Works funded by energy savings certificates (CEE)

How we calculate the CO₂ avoided : The CO₂ avoided is estimated from each project's volume of energy savings certificates (CEE), expressed in kWh cumac, that is, cumulated over the conventional lifetime of the works and discounted at 4% per year. This volume is converted into the energy saved in one year, then multiplied by the emission factor of the energy replaced: 0.065 kg CO₂/kWh for electricity used for domestic hot water, 0.227 kg CO₂/kWh for natural gas (regulatory values from the French order of 31 March 2021). Comparisons: average carbon footprint of a French person, 8.2 t CO₂e per year (SDES, 2024); petrol or diesel car, 142 g CO₂e per km, manufacturing included (ADEME, Impact CO2, 2025).

The solutions implemented

On the same site

Glass-ceramic manufacturer · 30,000 m³

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The audit establishes the savings achievable on your site and the financing available for your project.