Greenhy- Carbon-free hydrogen supplier
TOWARDS sustainable and eco-responsible mobility
Transport is responsible for more than a third of CO2 emissions in France. To limit the effects of global warming, states, communities and companies are committing to alternative and eco-responsible mobility, based on electric motors and hydrogen fuel cells. The Enerlis group, with its subsidiary GreenHy, positions itself as a key player in the production and distribution of carbon-free hydrogen, a catalyst for a sustainable energy transition.
GreenHy - Your partner for carbon-free hydrogen
GreenHy is a global integrator of hydrogen solutions in France, member of the France Hydrogène association, which brings together the main players in the hydrogen sector. Our offering covers the entire value chain, from production to distribution, including maintenance and optimization of infrastructures.
Our expertise in low-carbon hydrogen
Supply and delivery of carbon-free hydrogen
From 2026, GreenHy will offer a solution for the supply and delivery of decarbonized hydrogen, making it possible to decarbonize road mobility in the South-East of France. Thus, we will supply green or low-carbon hydrogen, in gaseous and compressed state, to meet the needs of distribution stations capable of powering fleets of light and heavy vehicles.
Integrated hydrogen charging stations
GreenHy can deploy hydrogen charging stations for a variety of vehicles: cars, utility vehicles, buses, trucks and refuse containers. Each station can be equipped with a water electrolyzer, producing green hydrogen directly on site. The production and distribution capacity of the stations varies between 400 kg and 2000 kg of hydrogen per day, depending on needs.
Support and maintenance
We offer a complete or modular service from the feasibility study to the installation and maintenance of hydrogen infrastructures, guaranteeing efficient and sustainable implementation.
– Engineering study: analysis of needs and design of tailor-made solutions.
– Installation: deployment of production and distribution infrastructures.
– Maintenance and operation: complete service to ensure the longevity and operational reliability of the installations.
A question about low-carbon hydrogen?
The key advantages
of decarbonized hydrogen (green or low carbon)
Significant reduction in emissions
Significant reduction in emissions
Using carbon-free hydrogen makes it possible to drastically reduce greenhouse gas and pollutant emissions. Unlike fossil fuels, the combustion of hydrogen only produces water, which eliminates CO2 emissions but also atmospheric pollutants such as NOx, SOx and even fine particles.
Performance and autonomy
Performance and autonomy
Hydrogen vehicles offer a range similar to fossil fuel vehicles with fast recharge times, often less than five minutes. This technology also ensures competitive autonomy, whatever the climatic conditions (heating in winter, air conditioning in summer).
Objective of our solutions
Our solutions aim to facilitate the transition to sustainable mobility, significantly reduce CO2 and pollutant emissions, and offer reliable and competitive production and distribution infrastructures. We are committed to providing innovative and quality services to meet current environmental and energy requirements.
A word from the expert
The Impact of decarbonized hydrogen
Jean-Philippe Gendarme
GreenHy Director at Enerlis
FAQs
A question?
It is a hydrogen produced by electrolysis of water or brine (aqueous solution of NaCl) with so-called carbon-free electricity, that is to say either electricity of renewable origin (solar, wind, hydroelectric) or electricity distributed on the French electricity network knowing that the emission factors for solar, wind, hydroelectric and electricity mix sources are respectively 44, 14, 6 and 13g CO2 equivalent/kWh.
Depending on the electrolyzer technologies used and the hydrogen distribution pressure (350 or 700bar), between 55 and 60MWh of electricity must be consumed to produce 1000kg of hydrogen.
Hydrogen being a small molecule (it is the smallest molecule on earth), the risks of leaking into the atmosphere are greater than those presented by other commercial liquid or gaseous fuels. This is why particular attention is paid during the design, operation and maintenance stages to guarantee the absence of leaks from the installations. If mixed with air, risks of spontaneous ignition (especially in the event of a high pressure leak) or even explosion may occur. Thanks to the implementation of proven technologies, strict compliance with procedures in the event of intervention as well as continuous supervision / detection of installations, the risks of leaks are on the one hand very unlikely and on the other hand immediately detected with instantaneous security of the installations.
The cost price of hydrogen produced in distribution stations by water electrolysis being very dependent on the cost of access to electricity, this will mainly depend on the type of supply contract implemented. For example, the electricity share in the cost price of hydrogen for electricity purchased at €50/MWh (all taxes included excluding VAT) or €100/MWh amounts respectively to around €3/kg or 6 €/kg hence the importance of having the best possible electricity supply contract.