FAQ

Green gas is an umbrella term for renewable gases that can replace fossil natural gas.
The main types are:

• Biomethane → chemically identical to natural gas (CH₄) and fully compatible with today’s gas grid.

• Biohydrogen → a different gas (H₂) with unique applications in mobility, industry, and energy storage.

• Synthetic methane (e-methane) → methane produced using renewable electricity and CO₂.

Together, they are climate-friendly alternatives that make our energy system more sustainable and secure.
The most relevant for energy systems today are biomethane and green hydrogen but other renewable gases such as syngas, bio-LPG, or ammonia are sometimes included in the definition of green gas.

Biomethane is renewable methane made from biomass. It is chemically identical to fossil natural gas and can be used in the same way — for heating, electricity generation, or industrial purposes.
The difference: biomethane is renewable and carbon-neutral.

Yes — biomethane is molecule-for-molecule the same as fossil natural gas (CH₄).
The only difference is where it comes from: fossil sources vs. renewable biomass.

Hydrogen (chemical symbol H₂) is the lightest element in the universe. At normal temperature and pressure, it is a colourless gas with a very high energy content per kilogram and is already used in industry and mobility. In the future, hydrogen will play a key role as a clean energy carrier, helping us store renewable surpluses from summer to winter.

Biobased hydrogen is green hydrogen produced from biomass. This makes biobased hydrogen a fully renewable alternative to fossil-based hydrogen, helping to decarbonize industry, mobility, and energy storage.

Syngas (short for synthesis gas) is created when biomass is heated to very high temperatures with little or no oxygen.
It mainly consists of hydrogen (H₂) and carbon monoxide (CO), plus small amounts of carbon dioxide (CO₂) and methane.
BIOSHIFT produces syngas from dry biomass and surplus renewable electricity — the starting point for biomethane or hydrogen.

The water–gas shift reaction is a chemical process that increases the hydrogen content of syngas.In this reaction, carbon monoxide (CO) from the syngas reacts with water vapor (H₂O) to form additional hydrogen (H₂) and climate-neutral carbondioxide (CO₂).This process, widely used across the industry, is applied in BIOSHIFT plants to maximise renewable hydrogen yield.

Biomethane is methane made from renewable resources such as biomass.
BIOSHIFT can upgrade syngas to more than 98% pure biomethane, fully compliant with grid standards.
It can be fed directly into the existing gas network, replacing fossil natural gas and providing storable, renewable energy.

Biomass is organic material from plants and animals that can be used as a renewable energy source. Chemically, biomass consists mainly of carbon (C), hydrogen (H), and oxygen (O) — the same building blocks that store solar energy in plants.BIOSHIFT focuses on residues consisting of residue materials such as:

• straw, stalks, husks, pruning wood
• nutshells, energy grasses, corn cobs
• cardboard and recovered paper

This way, no food crops are diverted from food production — only leftovers and by-products are used.

Biochar is solid carbon (C) that remains after gasification.
It retains valuable plant nutrients such as potassium (K), calcium (Ca), and phosphorus (P) remain in the biochar. When applied to the soil, it improves fertility, water retention, and nutrient cycles — while closing the loop on resources. 
Because it is stable for decades or even centuries, biochar also acts as a natural carbon capture and storage solution.

Essential plant nutrients such as potassium (K), calcium (Ca), and phosphorus (P) remain in the biochar.By applying biochar back to fields, these nutrients are recycled into the soil, reducing the need for synthetic fertilizers.