KELP

Agriculture · Market gardening · 12,000 m³, in a very humid region

Vegetable greenhouse · Dehumidification

  • 300 t CO₂/yr
  • 4 months
  • 16,841,160 kWh cumac
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Crop greenhouse

The finding

Uncontrolled humidity was damaging the crop and driving up heating.

What KELP did

Two now treat the whole volume by recovering energy from the extract air, instead of discharging warm humid air outside.

The result

300 t CO₂/yr

CO₂ avoided

Equal to the annual carbon footprint of about 37 French people, or 2.1 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

A comparable project on your site

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