Knowledge Center

Air quality

The use of NGV and bio(NGV) as an alternative fuel in the transport sector improves significantly the air quality by reducing emissions of NOx and fine particle matter.

  • Fine particle matter

The use of NGV and bio(NGV) reduces emissions of fine particle matter by 95% compared with diesel (Euro VI).

  • NOx

The use of NGV and bio(NGV) reduces emissions of NOx by 50% compared with diesel (Euro VI).

Source: Data for France from IVECO Cursor 8

The use of NGV and bio(NGV) is a solution chosen by numerous cities around Europe for their waste management vehicles and public buses.

For more detailed information on gas mobility in each GD4S member countries, please consult the brochure “Gas mobility for better air quality”.

Intermediate crops

The development of renewable gas provides strong benefits to the agricultural sector.

Source: GRDF

Anaerobic digestion

Anaerobic digestion is a process of manure, agricultural waste, and sludge being decomposed by micro-organisms. Anaerobic digestion produces biogas that can be upgraded in order to reach the same quality as natural gas and be then called biomethane. Anaerobic digestion respect the waste hierarchy and improve quality of soils by using intermediate crops.

Biomethane production provides additional revenues for farmers. Anaerobic digestion also produces digestate that can be used on the soils instead of fertilizers, resulting in significant savings for farmers.

Source: French Renewable Gas Panorama 2016

An anaerobic digestion plant

Cost efficiency

Gas infrastructures are key to Europe’s energy system. They allow us to conduct the energy transition without massive new investments.

  • The use of renewable gas will allow Europe to conduct the energy transition at the lowest cost:
    • 138 billion euro per year saved by 2050
    • 600 euro per households per year saved by 2050
  • Gas technologies, as micro-CHP, are innovative and can deliver peak demand at lower societal costs
  • Gas can be stored, therefore allowing us to answer the winter peak energy demand

For more information, please consult the full study « Gas for climate » from Ecofys


The use of biomethane, a renewable fuel, brings different benefits in terms of decarbonisation cross sectors.

Biomethane is key to a holistic approach of the energy transition.


The use of bioNGV allows to reduce the CO2 emissions by 80% compared to diesel (Euro VI). Today, the use of bioNGV is the only credible alternative fuel in the heavy-duty sector.

Source: Ademe

Source: Ademe Base Carbone


Intermediate crops are used as feedstocks for anaerobic digestion. Their use allows to stock more carbon in the soils. Therefore, anaerobic digestion participate in the decarbonisation of the agricultural sector. According to the 4 per 1000 principle, if the carbon level in the soils was increased by 0.4% every year, it could halt the world’s annual increase in CO2 in the atmosphere.

Source: 4 per 1000 initiative

Gasification of biomass

Gasification is a thermochemical process used to obtain synthetic gas from biomass or prepared waste (SRF – Solid Recovered Fuels), which are heated at a temperature of 800 degrees. Gasification of biomass supports circular economy and optimize the energy recovery from feedstocks.

ENGIE's GAYA R&D project to produce bioSNG from woody biomass in St-Fons (France)

Source : French Renewable Gas Panorama 2016

Energy efficient heating systems

New gas solutions can answer the need for energy flexibility and energy efficiency.

Source: GRDF

Job creation

The development of renewable gas and natural gas vehicles will have a positive impact on employment.

A study from Frost & Sullivan named "Natural gas for vehicles (NGV) industry impact on French employment" shows the benefits of developing this sector on the employment. This study covers two industries, namely the vehicle production and maintenance sector and the NGV refueling station network installation and maintenance sector in France. The main study takeaways are:

  • 36.000 full time equivalents (FTE) could be created in France by 2030. These jobs would largely replace existing diesel vehicle related jobs, but many OEMs expect NGV to enable them to retain jobs in France, rather than relocating diesel jobs in low cost countries, like what is already happening. Unlike electric vehicles for which critical components such as the battery are imported, the NGV industry in France relies on growing local expertise that will preserve jobs and skills in the country.

  • The development of NGV is also expected to create 1.500 net FTEs by 2030. Most of these jobs are linked to the construction and maintenance of NGV refueling stations, while the NGV vehicle industry will not create a significant number of new net jobs.

Source: Frost and Sullivan 2017


Power-to-Gas is the production of hydrogen by electrolysis of water from renewable electricity and its use, either via direct injection into the grid, or after conversion to synthetic methane by methanation. This innovative technology allows us to store the surplus of renewable electricity.

Figure 1GRYHD pilot project

Source: French Renewable Gas Panorama 2016

Grid flexibility

Gas technologies are key to provide flexibility to the grid:

  • On the upstream side, the production of hydrogen (Power-to-Gas) from surplus electricity can avoid the installation of fossil/renewable generation capacity and replace electricity network expansion. These avoided costs need to be monetized and the hydrogen producers shall be financially rewarded.

  • On the downstream side, consumers using smart gas flexible solutions such as micro-CHP shall be incentivized. These technologies should receive building codes and/or energy labeling that reflect the benefits they bring to the energy system. Besides, renewable gas share used in micro-CHP should also be taken into account.

The combination of renewable electricity and renewable gas is key to a low-cost energy transition. It also brings additional societal benefits as an improved security of supply.

For more information please consult the report  “Flexibility in the energy transition : a toolbox for gas DSOs”

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+ 32 2 280 39 94

66, Avenue de Cortenbergh
B-1000 Bruxelles
+ 32 2 280 39 94