Energy solutions for the treatment of wastewater and waste

Wastewater treatment plants and landfill sites: at the heart of sustainable development. Biogas-fuelled energy production systems.

New regulations and ecological issues have turned the recovery of energy from waste into a major challenge for many local authorities. Treatment infrastructures all over the world produce discharge and sewerage gas. These infrastructures can recover the methane that is produced, instead of destroying or burning it.

Wastewater treatment and purification plants, waste processing centres and landfill sites all use the waste that is contained in wastewater or organic waste to naturally produce biogas, which consists mainly of methane and carbon dioxide. The wastewater and waste treatment plants then capture this gas. The gas can then be used as a renewable fuel to supply electricity to the systems in the wastewater treatment plant, as heat to speed up the sludge digestion process, or can be injected into the gas distribution networks or urban electricity or heating networks. The biogas produced by wastewater or waste treatment plants is contributing to the emergence of local circular economies, in which waste and sludge are used as a source of energy.

Wastewater treatment plants also face the issue of continuity of activity. Power cuts can compromise the wastewater treatment processes, resulting in significant financial impacts and serious environmental damage, such as the discharge of untreated water.

Thanks to our expertise in energy engineering and to our backup electricity systems, you can benefit from solutions adapted to your activity, such as gensets specially configured to run on biogas and backup gensets that guarantee the energy supply of your wastewater treatment plant in the event of a power cut. 

Our products for wastewater and waste treatment plants:
Are you looking for an efficient, sustainable and decarbonised global, multi-energy solution for your wastewater and waste treatment activity? Find out how Eneria can help you to find the ideal energy solution.

Biogas gensets for wastewater and waste treatment plants

Our biogas gensets meet your specific needs in every power range and for all applications. Since they are adapted to all types of gas (discharges, methanation, synthetic), they can recover your gas emissions to produce the electricity you need.

Our biogas-fuelled cogeneration or trigeneration gensets enable you to combine the production of electricity with the production of heat or cold, for optimal thermal and electrical efficiency.

They can also be used simply as a backup solution in the event of a power cut. 

Backup gensets for wastewater treatment plants

Our backup gensets are configured according to the characteristics of the wastewater treatment plant and its treatment processes. The power of the gensets installed varies significantly, according to the profile of the wastewater treatment plant.

You need backup gensets that allow for the uninterrupted operation of the plant and its systems, in order to guarantee the electricity supply required by critical facilities, such as purification plants and wastewater treatment plants.

Our experts offer the best equipment in our broad range of diesel and biodiesel gensets that are best adapted to water treatment. We adapt our solutions to the location of the wastewater treatment plant, its equipment and its water treatment processes.

Industrial engines

The demands of the pumping equipment used in the treatment processes in wastewater and waste treatment plants are very high. We can offer innovative equipment solutions that will help you to boost your productivity and remain competitive.

The engines in your industrial machinery must be compact and environmentally friendly, with a favourable weight-to-power ratio Our broad offer of high-performance engines meet these requirements and can be used to drive your equipment, such as waste crushers, compactors, water pumps and other devices.

We can support your integration engineering works to strike the best compromise between performance and the cost of operation.

Find out more about our solutions based on renewable energies

Do you want to harness the potential of renewable energies to fully or partially power your wastewater or waste treatment plant? We have the solutions:


We can offer biodiesel-fuelled gensets that can effectively help you to reduce your environmental impact.

Panneaux solaires

Photovoltaic solar panels

Our solar panels are a source of renewable energy that supplement your main energy source and allow you to make good use of your available spaces to produce green energy.
You can install our solar panels on the roof of your wastewater treatment plant, or our photovoltaic canopies in your car parks.

Hydrogen genset

The hydrogen genset solution: zero emissions guaranteed. The GEH2® only discharges water. Totally silent and odour-free.

Hydrogen-powered fuel cells produce the electricity you need for both a continuous power supply and a backup energy source.

When combined with our other sources of renewable energies, this technology offers a multitude of possibilities to reduce the environmental impact of your wastewater and waste treatment plants.

How to maintain your gensets and industrial engines?
Electrical Services and Maintenance for the treatment of wastewater and waste

Maintenance of multiple makes of gensets and engines

Installations of our energy solutions for the treatment of wastewater and waste

Eneria is renovating the biogas genset in the SUEZ waste storage centre in Saint-Maximin