Bioenergy & biomass • physical vs legislative availability
Global biomass, and how much the EU can actually use
Related: feedstock trade flows · CBAM & carbon cost · does EU policy work
This page is a funnel. It starts from the biomass that physically exists, narrows to what is not already claimed by food, feed, materials or soil carbon, and narrows again to what the EU may legally count under its renewable-energy rules. The interesting thing is the distance between the first layer and the last. A rule correct in its own frame does not represent the couplings around it, so biomass that is abundant and low-carbon can be legally invisible, and biomass the rules do count can still be contested. Crude tall oil is the worked case: an Annex IX residue whose climate value turns on a cross-sector coupling the eligibility list cannot express.
How to read this page: ● measured sourced data · ◐ inferred analyst reading, basis linked · ○ projected anchored to a real starting point. Bracketed citations link to the sources at the foot of the page.
The gap this page maps
exists ≠ countable
physical biomass vs what RED lets the EU count
The bars are illustrative, not to scale. The argument of this page is the distance between the top bar and the bottom one: biomass that exists and could cut carbon, yet the rules cannot count.
The size of it
Totals: what the land grows, what falls out as residue
Two primary streams dominate: the crop harvest and the wood harvest. Neither is free for energy. What the energy debate can draw on is the residue, and only the fraction of residue that can leave the field or forest without mining the soil. The numbers below narrow from primary production, to gross residue, to the part that is realistically available.
Production is measured (FAOSTAT via the OWID mirror, latest reference year). Gross residue is inferred: production times a residue-to-product ratio. Available residue applies a 40 to 50 percent sustainable-removal fraction, below which soil organic carbon holds; it is a coarse planning figure, not a site number. Forest and agricultural residues together correspond to at least 350 Mtoe/yr sustainably available worldwide, on one industry estimate.[12] ◐ inferred
What exists
Global biomass by source
The physical resource, before any rule or competing use narrows it. Volumes are FAOSTAT production run through published residue-to-product ratios, so the tonnages are inferred from measured production. Per-country detail arrives with the FAOSTAT auto-fetch.
The largest agricultural residue stream; most is left on fields for soil carbon or used as fodder and bedding. Derived from 2,837 Mt of 2024 wheat, rice and maize, times OMD median residue-to-product ratios of 1.69 (wheat straw), 1.61 plus 0.27 husk (rice) and 1.20 (maize stover).
Already largely burned on-site for process heat and power at the mills. Derived from 1,940 Mt of 2024 cane, times 0.29 t bagasse per t cane as received at the mill (range 0.25 to 0.33).
Wet, perishable, a low-value feed outlet, much of it left to release methane; a large tropical residue stream and one candidate advanced feedstock among many.
Much is already pulp, panels, or on-site energy; genuine surplus is smaller than gross.
Annex IX Part B; collection, not production, is the binding limit, and EU demand already outruns EU collection.
Annex IX Part B; categories 1 and 2 only, higher categories have feed and oleochemical uses.
Skimmed from black liquor at kraft pulp mills; contested between oleochemical use (rosins, adhesives, inks) and biofuel. The worked case below.
Available for what
The competing-use cut
The same biomass is claimed at once by food, feed, materials, soil carbon and energy. Most of what looks like potential is already spoken for, so 'available for energy' is a residual, a claim, not a fact. In the EU biomass balance, food and feed take the largest share, materials next, and energy a slice of what remains.
The feed claim is exactly what blocks a residue from counting as an advanced fuel feedstock.
Removing residue for fuel can draw down soil organic carbon; a real cost rarely on the balance sheet.
EU bioenergy actually used, 2024[4]
● measuredGross inland consumption by carrier, the slice of the competing-use cut above that the EU energy balance records as energy. Live from Eurostat, updated 2026-06-02.
What the EU can legally count
RED eligibility, and the gap it opens
A feedstock can be physically abundant and still not count. To earn advanced-fuel status a residue must clear the Article 28(6) test: the waste hierarchy and a market-distortion criterion. A residue with an established higher-value use, feed being the paradigm, fails it. The list below is the directive text; a feed-linked residue like cassava pulp is one place where physical and legal availability part company, and crude tall oil, worked below, is another.
The Article 28(6) test for adding a feedstock to Annex IX[5]
- The circular economy and the waste hierarchy (Directive 2008/98/EC): feed and material recovery sit above energy, so diverting a feed material to fuel is disfavoured.
- The Union sustainability and greenhouse-gas criteria.
- The need to avoid distortive effects on markets for by-products, wastes or residues: a feedstock already traded as feed cannot be pulled into subsidised fuel demand without displacement.
- The potential for substantial greenhouse-gas savings versus fossil fuels.
- The need to avoid additional demand for land, and negative effects on biodiversity, soil and water.
An established feed use trips criteria 1 and 3 at once. That is how a residue can be abundant and low-carbon, criterion 4, and still be refused.
Annex IX Part A (advanced feedstocks, double-counted)[5,7]
- Algae
- Biomass fraction of mixed municipal waste
- Bio-waste from households (separate collection)
- Biomass fraction of industrial waste
- Straw
- Animal manure and sewage sludge
- Palm oil mill effluent (POME) and empty palm fruit bunches
- Tall oil pitch
- Crude glycerine
- Bagasse
- Grape marcs and wine lees
- Nut shells
- Husks
- Cobs
- Bark, branches, leaves, saw dust, cutter shavings and other forestry / forest-industry residues
- Other non-food cellulosic material
- Other ligno-cellulosic material except saw logs and veneer logs
Annex IX Part B (capped, double-counted)[5]
- Used cooking oil
- Animal fats classified as categories 1 and 2
Physically abundant, kept off Annex IX (existing-use / market-distortion)[5,8]
Molasses
Established feed, yeast and distilling market; flagged for market-distortion, kept off Annex IX.
Distillers' grains (DDGS)
A large animal-feed market makes it a co-product carrying an emissions burden, not a zero-burden residue.
Cassava starch residue (pulp)
An established, if seasonal and low-value, feed use fails the waste-hierarchy / market-distortion test.
The gates, in short
Food-and-feed-crop cap[5]
Crop-based biofuels frozen at the 2020 national share +1 percentage point, capped at 7% of transport energy. As a residue, cassava pulp is exempt from this cap; its block is the advanced-feedstock gate, not the cap.
High-ILUC-risk[5]
Feedstocks whose production expands onto high-carbon-stock land (in practice palm oil) frozen at 2019 levels and phased to 0% by 2030. The purpose is to stop biofuels driving land conversion.
Zero-burden residue rule[5]
Annex V Part C: no emissions are allocated to wastes and residues up to collection. An established feed market can push a residue from residue to co-product, which strips this treatment and raises its carbon score.
The 2030 targets that make eligibility bite[6,8]
Renewables were 11.2% of EU transport energy in 2024, against the ≥ 29% (or ≥ 14.5% GHG cut) the directive requires by 2030. The advanced slice of that gap is exactly what the excluded residues could have helped close.
The Member State picks the metric. RED III Art. 25(1).
At least 1% by 2025, and of the 5.5% at least 1 percentage point must be RFNBOs (e-fuels, green hydrogen). This is the sub-target that gives Annex IX Part A eligibility its value. RED III Art. 25(1)(b), verbatim.
Raiseable under RED III by Commission delegated act or by a Member State on feedstock-availability grounds.
The advanced sub-target can only be met with Annex IX Part A feedstocks and RFNBOs. Every abundant residue kept off Part A on a competing-use argument is capacity the EU must then find somewhere else, or miss.
What it can become
The conversion routes
Biomass is not one fuel. The same tonne becomes heat, electricity, a gas, a diesel, an alcohol or a char depending on the route, and the route decides both the yield and whether the EU counts the output as advanced. Physical and chemical maturity runs from fully commercial (combustion, digestion, oils to diesel) to first-of-a-kind (gasification to jet, hydrothermal liquefaction). This is where "potential" meets plant.
Not every route takes every feedstock. Moisture and chemistry decide: wet material goes to digestion or hydrothermal, oily material to esterification or hydrotreating, dry fibre to heat, gasification or the hard cellulosic ferment, and only sugar and starch to the easy first-generation ferment. The grid below is nearly block-diagonal, and that shape is the point.
| Thermal | Thermochemical | Biochemical | Chemical (oils & fats) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feedstock | Combust. | Pellet. | Pyrolysis | Gasif.+FT | Gasif.+SNG | HTL | AD | 1G ferm. | 2G ferm. | Trans-est. | HVO |
| Dry lignocellulosewood, straw, stover, bagasse, husk | · | · | · | ||||||||
| Wet organicsmanure, food & MSW organics, sludge | · | · | · | · | · | · | · | · | · | ||
| Sugar & starch cropscane, maize & wheat grain | · | · | · | · | · | · | · | · | · | ||
| Oils & fatsvegetable oils, UCO, animal fats | · | · | · | · | · | · | · | · | · | ||
The near-diagonal is physics, not policy. The costly frontier is off the diagonal: pulling a fuel out of dry fibre (2G fermentation, gasification) or out of wet waste (hydrothermal liquefaction). That is exactly the biomass the rules most want to count, and the biomass hardest to convert.[14]
Thermal
| Route | Feedstock | Product | Indicative yield | Maturity | EU rule status |
|---|---|---|---|---|---|
| Direct combustion[14] | Any dry solid biomass (wood, straw, pellets) | Heat and electricity | ~4.9 MWh thermal per dry t (LHV ~18 GJ/t); 20 to 35% to power | Mature | Renewable heat/power, not transport |
| Pelletising / torrefaction[14] | Sawdust, chips, straw | Densified solid fuel | Upgrade step; ~0.9 t pellets per t dry input | Mature | Solid biomass sustainability criteria |
Thermochemical
| Route | Feedstock | Product | Indicative yield | Maturity | EU rule status |
|---|---|---|---|---|---|
| Fast pyrolysis[14] | Wood, straw (lignocellulose) | Bio-oil, biochar, gas | 60 to 75 wt% bio-oil; needs upgrading for fuel | Demonstration | Advanced (Annex IX A) once upgraded |
| Gasification + Fischer-Tropsch[14] | Lignocellulose, wastes | FT diesel, SAF, naphtha | ~1,000 to 1,500 MJ liquid per t (route-dependent) | Early commercial (first SAF plants) | Advanced (Annex IX A); SAF-eligible |
| Gasification + methanation[14] | Lignocellulose, wastes | Bio-SNG (synthetic methane) | Grid-quality methane | Demonstration | Advanced (Annex IX A) |
| Hydrothermal liquefaction[14] | Wet biomass, sludge, manure | Biocrude | Emerging; skips drying | Emerging | Advanced once upgraded |
Biochemical
| Route | Feedstock | Product | Indicative yield | Maturity | EU rule status |
|---|---|---|---|---|---|
| Anaerobic digestion[14] | Manure, MSW organics, sludge, wet residue | Biogas / biomethane | ~80 to 200 m3 biogas per t (substrate-dependent) | Mature | Manure & biowaste are Annex IX A |
| 1G fermentation[13] | Sugar & starch crops (cane, maize, wheat) | Ethanol | ~70 l/t cane; ~400 l/t grain | Mature | Food/feed crop, 7% cap |
| 2G cellulosic fermentation[13] | Straw, stover, bagasse, wood | Ethanol | ~250 to 300 l per dry t (64 to 78% of theoretical) | Early commercial (few plants) | Advanced (Annex IX A), double-counts |
Chemical (oils & fats)
| Route | Feedstock | Product | Indicative yield | Maturity | EU rule status |
|---|---|---|---|---|---|
| Transesterification[5] | Vegetable oils, UCO, animal fats | FAME biodiesel | ~0.9 to 1.0 t biodiesel per t oil | Mature | UCO/fat Part B; virgin oil capped |
| Hydrotreatment (HVO / HEFA)[14] | Vegetable oils, UCO, animal fats | Renewable diesel + SAF | ~0.8 t HVO per t oil; SAF cut | Mature (commercial) | UCO/fat Part B; SAF-eligible |
Yields are indicative literature ranges per dry tonne of feedstock unless stated, not guarantees; they vary with feedstock, moisture and configuration. Maturity is a coarse readiness band. Rule-relevance flags whether the typical output can count toward the EU advanced-fuel or food-crop-capped categories, and is the directive text, exact but simplified. ◐ inferred
Worked case
The worked case: crude tall oil, counted yet contested
Crude tall oil is what a kraft pulp mill skims off its black liquor, a genuine residue, and the EU lists it in Annex IX Part A, so a litre refined into renewable diesel counts double toward the advanced target. Finland and Sweden make and refine most of Europe’s supply, so the credit lands here. Yet the same residue already feeds an older industry: rosins, adhesives, inks and coatings are built from it. Whether moving a tonne from that use into fuel cuts carbon depends on what the displaced buyer switches to, and if the answer is a fossil or palm-derived substitute, the advanced-fuel credit has bought an emission it cannot see. The producers argue supply outruns the chemical demand, so nothing is displaced; critics apply the waste hierarchy and reach the opposite view. The eligibility list cannot hold that argument. It records a binary, residue or not, where the real quantity is a contested balance between two sectors. That distance, between a rule correct in its own frame and the coupling it cannot represent, is what this page maps.[5,15,16]
Sources and method (16)
- [1] FAOSTAT crop production, pulled LIVE via the Our World in Data grapher mirror (both CC BY 4.0; FAOSTAT's own REST API requires authentication). World aggregates, latest reference year; refreshed monthly with the Eurostat pull, never in the build chain.
- [2] JRC ENSPRESO / ENSPRESO2, EU technical biomass potential 2010-2050, agriculture / forestry / waste, low-medium-high scenarios (Licence: CC BY 4.0). EU-27 + NUTS2, not global.
- [3] JRC EU Biomass Flows (DataM), dry-matter biomass supply and use by sector (food/feed, materials, energy), incl. trade. Latest data years staggered (agriculture 2023, forestry 2021).
- [4] Eurostat, complete energy balances (nrg_bal_c) and renewable shares (nrg_ind_ren), bioenergy carriers; free reuse under Decision 2011/833/EU. Annual.
- [5] Directive (EU) 2018/2001 (RED II), Art. 2 (residue/waste/food-and-feed-crop definitions), Art. 26 (food-and-feed-crop cap, high-ILUC-risk), Art. 28(6) (Annex IX amendment criteria), Annex V Part C (zero-burden rule for wastes and residues), Annex IX Parts A and B.
- [6] Directive (EU) 2023/2413 (RED III), carrying forward the residue/waste architecture, the Annex IX structure and the ILUC provisions, with raised targets.
- [7] Commission Delegated Directive (EU) 2024/1405 (14 Mar 2024), amending the Annex IX feedstock list; additions assessed against the Art. 28(6) competing-use and food/feed-displacement criteria.
- [8] ICCT, Availability of biomass feedstocks in the EU (2024), and related waste-and-residue availability assessments (feed-competition and collection-vs-demand benchmarks).
- [9] Residue-to-product ratios (inferred): median implied RPR from the OMD (Organic Matter Database, Sileshi et al., Earth System Science Data 17:369-391, 2025, doi:10.5194/essd-17-369-2025; open dataset Zenodo doi:10.5281/zenodo.10450921, CC BY 4.0), computed as residue yield / grain yield across hundreds of FAOSTAT country-year records per crop: wheat straw 1.69 (n=732), rice straw 1.61 (n=689), maize stover 1.20 (n=977), bagasse 0.29 (n=548). Rice husk 0.267 keeps Koopmans & Koppejan's own value (FAO doc ad576e). Residue tonnages carry the ratio inline.
- [10] FAO, State of the World’s Forests 2024: global wood production at record levels, about 4 billion m3 per year, roughly half of it wood fuel.
- [11] Battaglia et al. (2021), "The broad impacts of corn stover and wheat straw removal for biofuel production on crop productivity, soil health and greenhouse gas emissions", GCB Bioenergy 13: 45-57, and the wider review literature: sustainable residue removal rates of roughly 40 to 50 percent keep soil organic carbon stable.
- [12] Neste, "Forest and agricultural residues": the globally, sustainably available volume of forest and agricultural residues corresponds to at least 350 million tonnes of oil equivalent per year.
- [13] US NREL, cellulosic-ethanol yields: practical biochemical yields of roughly 250 to 300 litres of ethanol per dry tonne of lignocellulose (about 64 to 78 percent of theoretical); corn-stover theoretical near 430 l/t.
- [14] IEA Bioenergy (Task 39 / Task 33), conversion-pathway maturity and product slates for thermochemical (gasification + Fischer-Tropsch, pyrolysis) and biochemical routes to biofuels and SAF.
- [15] Transport & Environment (July 2024), "The advanced and waste biofuels paradox": Annex IX feedstocks that already have an established industrial use, crude tall oil among them, risk displacement emissions when diverted to fuel, and are flagged for reconsideration under the RED feedstock-review principles.
- [16] "The crude tall oil value chain: global availability and the influence of regional energy policies", Journal of Cleaner Production (2020): CTO is a kraft-pulping residue skimmed from black liquor; Finland and Sweden produce and refine most of Europe’s supply (order 0.4 Mt/yr), split between oleochemical products and biofuel.
The EU bioenergy magnitudes and the transport renewable share are LIVE from Eurostat (measured, reference year 2024). The crop-production totals and the Layer 1 cereal-straw and bagasse volumes are LIVE from FAOSTAT via the OWID mirror, with residues derived through published residue-to-product ratios and the available fraction through a 40-50% sustainable-removal band (both inferred by construction; the arithmetic rides with each number). Both live pulls run on the monthly refresh via scripts/fetch_biomass.js, never the build chain. Layer 3 and the EU rule-status column are the directive text and are exact. The conversion yields and maturity bands are curated literature ranges (IEA Bioenergy, NREL), indicative not guaranteed. Still curated too: the ENSPRESO / JRC-flows EU potentials (EU-only), UCO and animal-fat collection volumes, and the FAO roundwood figure.