tonnes of waste are converted into energy every year

400 000

this is the number of European households that can be supplied with biogas by SUEZ

Electricity, heat or steam production

We transform your residual waste into electricity and heat, helping to meet local renewable energy needs, whether industrial or domestic.  

Tailor-made renewable energy solutions from waste 

We support you throughout your project: characterisation of residual waste in terms of composition, but also evolution, study and engineering, choice of energy source and sizing of the sector, construction of units, operation and optimisation of your installation over time, CO2 capture and management. 

This production of renewable energy places you at the heart of the energy transition, allowing you to:  

  • To self-supply a treatment plant with energy 
  • Reduce the energy bill of your facilities (hospitals, administrative buildings, etc.). 
  • To supply heat to your urban networks. 
  • Increase the share of renewable energies in your territory's energy consumption, whether it is public or private heating networks. 
  • Decarbonise your energy or your territory by substituting a fossil energy source (gas, oil, coal, etc.) with a renewable energy source. 

3 main families of renewable energy solutions:  

  • Energy recovery with 3 possibilities: 
    - The heat generated by the combustion of non-hazardous waste heats a water circuit that powers turbines and produces electricity and/or heat. 
    - The treatment and incineration of hazardous waste in specialised furnaces located at the heart of chemical platforms provides energy in the form of steam to manufacturers.
    - Upgrading of alternative fuels: waste is prepared into alternative fuels, liquid or solid (CLS and CSS), with a high calorific value. They become a source of renewable energy to power industrial tools such as cement plants or boilers dedicated to an industrialist. 


  • Biogas production
    The fermentation of some buried waste  generates a gas called biogas. This contributes optimally to the energy mix of the territories.  

We offer biogas recovery methods adapted to local contexts: proximity to natural gas transmission or distribution networks, local energy needs (residential, collective, tertiary, industrial), presence of natural gas refuelling stations for vehicles, etc.  

  • Methane production 
    We also have a methanisation offer mixing organic waste from users, companies and agriculture. Methane gas has a calorific value that is more than 25 times higher than that of CO2.Captured and recovered, methane is injected into urban and industrial networks as a substitute for natural gas.

Technology and innovation 

In view of our experience as an operator of energy production infrastructures, we are as close as possible to operational challenges. In order to meet these challenges, we have developed the WasteAdvanced solution. 

WasteAdvanced is a management tool used in Energy Recovery Units, where waste becomes a source of energy.

A real decision-making aid for operation and operations managers, the WasteAdvanced solution complements the systems already in place. Thanks to the overview it offers and predictive analytics, the intelligent platform makes it possible to anticipate anomalies, reduce hazards and increase the performance of the infrastructure.​

Commitment to sustainability 

Sustainability is at the heart of our mission. Raising awareness and consulting on waste management, reduce waste and improve recycling.

By transforming waste into new resources, we contribute to a low-carbon circular economy. 

Your challenges, our solutions

Waste to energy
Local authorities

Energy from Waste

Our energy recovery units allow you to be supplied with energy while setting up local recovery loops 

Our inspiring stories

Toulouse's tomato greenhouses are heated thanks to waste treated at Econotre 

In Bessières, 30 km from the pink city, farmer Gilles Briffaud produces tomatoes in greenhouses at a competitive price thanks to the low-temperature renewable energy provided by the Econotre ecopole.

As part of a DSP (Public Service Delegation), we operate with the Syndicat Mixte Decoset (153 municipalities, 970,000 inhabitants) in the North of Haute-Garonne, the Ecopôle Econotre, which recovers, through incineration, household waste from the municipalities of Decoset.

Renewable energy from the combustion of waste is used to produce electricity and heat.

The heat released by the combustion of waste in the furnaces is used to produce electricity using a turbo-alternator.

Since the beginning of 2016, the low-temperature energy still available has been recovered from the turbogenerator to supply heating to the market gardening greenhouses built on the outskirts of the site, rather than being dissipated into the atmosphere.

The reuse of 25,000 MWh per year saves 2,200 tonnes of oil equivalent and 6,000 tonnes of CO2. This has created a new business that generates 100 jobs and the tomatoes are consumed locally. 

Frequently asked questions

Your trusted partner for circular solutions in water and waste 

With a presence across the entire value chain, we are recognised for our technical expertise, commitment to sustainability, and ability to provide you with tailored solutions. 

We also support you to

Transform waste into resources

We provide you with high-quality recycled materials: plastics, ferrous metals, aluminium, copper, wood, paper, cardboard, compost. 

Recycle materials 

You have waste to recycle: ferrous or non-ferrous metals, plastics, cables, paper - cardboard, wood, WEEE, wind turbines, etc. We offer industrial solutions to recycle materials.