KELP

Industry · Metalworking · 7 buildings

Metalworking site · Destratification

  • 1,700 t CO₂/yr
  • 6 months
  • 86,899,950 kWh cumac
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Air destratification fans under the roof structure of a production hall

The finding

Seven buildings with ceiling heights of 5 to 13 m, where warm air sat under the roof while the workstations stayed cold.

What KELP did

KELP sized and installed 90 air across the seven buildings.

The result

1,700 t CO₂/yr

CO₂ avoided

Equal to the annual carbon footprint of about 210 French people, or 12 million km driven every year in a petrol or diesel car

Energy savings certificates (CEE)

Works eligible for and 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

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