Biomass is organic material of plant or animal origin. At the molecular level, it consists of a complex structure of carbon, hydrogen, and oxygen atoms. In fact, biomass is a natural batteryThrough photosynthesis, plants capture solar energy and store it in their cells. Because the sun (our natural nuclear fusion reactor) is an inexhaustible source and plants grow again and again, biomass is essentially a renewable resource.

The crucial difference with fossil

Although fossil fuels such as oil and gas are essentially also “old biomass”, there is one key difference: the time scale.

  • Fossil fuels add carbon to the atmosphere that was stored deep underground for millions of years (the long carbon cycle).

  • Fresh biomass It operates within the short carbon cycle; the CO2 released during use was absorbed from the air by the plant shortly before. If managed responsibly, biomass is therefore climate-neutral or even climate-positive.

A versatile raw material

Biomass is unique because, unlike solar or wind, it can be directly converted into various forms:

  • Solid fuel: For direct heat generation.

  • Liquid biofuels: For heavy transport and aviation.

  • Biogas: For heating homes or industrial processes.

  • Biobased materials: For construction and chemistry.

No “one size fits all”

It's important to understand that the term "biomass" is a collective term. There's a big difference between a pruned branch, a residual flow from the food industry, or a specially cultivated crop. To avoid misconceptions, we now look at more than just the source, but especially to the value of the application (cascading) and the impact on biodiversity.

What types of biomass are there?

Wood and processing waste

Consists from residual material from trees, wood pellets, waste from the paper industry, sawmill dust and used building materials such as old furniture.

Fit for heating and transport if converted into biofuels, or electricity generation if solid.

Agricultural crops and waste materials

Consists from energy crops and post-harvest agricultural residues such as straw, corn cobs, beet pulp waste and roadside clippings.

Fit for transport when converted into biofuels, but also for generating electricity in the form of a solid or gas. Food, feed and fiber take priority over energy.

Food, garden and wood waste in household waste

Consists from everything left over after food consumption, as well as all compostable and industrial residues such as cooking oil.

Fit for transport when converted into biofuels, but also for providing heat and generating electricity in the form of a solid or gas.

Animal manure and human wastewater

Consists from poop produced by all humans and livestock.

Fit for heating and generating electricity as gas.