CDP Technical Note: Fuel definitions
CDP Corporate QuestionnaireContents
CDP Technical Note: Fuel definitions .......................................................................................... 1
Version .......................................................................................................................................... 4
Introduction ................................................................................................................................... 5
Solid fossil fuels ........................................................................................................................... 5
Anthracite ................................................................................................................................ 5
Asphalt..................................................................................................................................... 5
Bitumen ................................................................................................................................... 5
Bituminous coal ....................................................................................................................... 5
Brown coal ............................................................................................................................... 5
Brown coal briquettes (BKB) .................................................................................................... 5
Coke breeze ............................................................................................................................ 5
Coke oven coke ....................................................................................................................... 5
Coking coal .............................................................................................................................. 6
Gas coke ................................................................................................................................. 6
Lignite ...................................................................................................................................... 6
Lignite coke.............................................................................................................................. 6
Metallurgical coke .................................................................................................................... 6
Municipal waste (Non-biomass fraction)................................................................................... 6
Patent fuel ............................................................................................................................... 6
Peat ......................................................................................................................................... 6
Petroleum coke ........................................................................................................................ 6
Refuse-derived fuel (RDF) ....................................................................................................... 6
Semi-coke................................................................................................................................ 7
Subbituminous coal.................................................................................................................. 7
Waste tire derived fuels ........................................................................................................... 7
Waxes...................................................................................................................................... 7
Liquid fossil fuels ......................................................................................................................... 8
Aviation gasoline ...................................................................................................................... 8
Crude oil .................................................................................................................................. 8
Distillate fuel oil ........................................................................................................................ 8
Diesel/Gas oil........................................................................................................................... 8
Jet gasoline.............................................................................................................................. 8
Jet kerosene ............................................................................................................................ 8
Kerosene ................................................................................................................................. 8
Lubricants ................................................................................................................................ 8
Motor gasoline ......................................................................................................................... 9Naphtha ................................................................................................................................... 9
Natural gas liquids ................................................................................................................... 9
Oil shale and tar sands ............................................................................................................ 9

Orimulsion ............................................................................................................................... 9
Pitch ........................................................................................................................................ 9
Refinery feedstocks ................................................................................................................. 9
Residual fuel oil ....................................................................................................................... 9
Shale oil ................................................................................................................................... 9
Tar ........................................................................................................................................... 9
Waste oils .............................................................................................................................. 10
Waste plastics........................................................................................................................ 10
White spirit/SBP ..................................................................................................................... 10
Gaseous fossil fuels ................................................................................................................... 11
Blast furnace gas ................................................................................................................... 11
Butane ................................................................................................................................... 11
Coke oven gas ....................................................................................................................... 11
Ethane ................................................................................................................................... 11
Gas works gas ....................................................................................................................... 11
Liquefied petroleum gases (LPG)........................................................................................... 11
Liquefied natural gas (LNG) ................................................................................................... 11
Methane................................................................................................................................. 11
Natural gas ............................................................................................................................ 11
Oxygen steel furnace gas ...................................................................................................... 12
Propane ................................................................................................................................. 12
Refinery gas........................................................................................................................... 12
Town gas or city gas .............................................................................................................. 12
Biomass ....................................................................................................................................... 13
Biodiesels .............................................................................................................................. 13
Biogas.................................................................................................................................... 13
Biogasoline ............................................................................................................................ 13
Charcoal ................................................................................................................................ 13
Landfill gas ............................................................................................................................ 13
Municipal wastes (Biomass fraction) ...................................................................................... 13
Sludge gas ............................................................................................................................. 13
Sulfite lyes (Black liquor) ........................................................................................................ 13
Turpentine ............................................................................................................................. 14
Vegetable oils ........................................................................................................................ 14
Wood or Wood waste............................................................................................................. 14
Reporting fuel use in the CDP Corporate questionnaire .......................................................... 14

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Version
Version

Revision date

Revision summary

1.0
1.1
2.0
2.1

2013
2017
2018
April 3, 2020

2.2

July 23, 2020

3.0

January 21, 2022

4.0

January 16, 2023

5.0

June 28, 2024

First published version.
Updated definition for “Distillate fuel oil”.
Formatting updated.
Minor update to definitions for “Refuse-derived fuel (RDF) and“Municipal wastes (Biomass fraction)”
Correction of errors in the allocation of fuels into the fossil fuel andbiomass categories
Minor formatting updates for the release of the 2022 CDP climatechange questionnaire
Updates to question numbers for the release of the 2023 CDP climatechange questionnaire, and an additional section on reporting fuel use
in the CDP questionnaire.
Updates to question numbers for the release of the 2024 CDP
corporate questionnaire

Copyright © CDP Worldwide 2024
All rights reserved. Copyright in this document is owned by CDP Worldwide, a registered charity number
1122330 and a company limited by guarantee, registered in England number 05013650.

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Introduction
All fuels found in the Greenhouse Gas Protocol Stationary Combustion Tool, Version 4.0 havebeen defined below. CDP has also included other fuels used primarily in mobile combustion, topresent organizations with a more complete list of possible fuels used in organization operations.

Solid fossil fuels
Anthracite
Anthracite is a high rank coal used for industrial and residential applications. It has generally lessthan 10% volatile matter and a high carbon content (about 90% fixed carbon). Its gross calorificvalue is greater than 23,865 kJ/kg (5,700 kcal/kg) on an ash-free but moist basis.
Asphalt
A dark brown-to-black cement-like material obtained by petroleum processing and containing
bitumens as the predominant component; used primarily for road construction. It includes crudeasphalt as well as the following finished products: cements, fluxes, the asphalt content of
emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutbackasphalts.
BitumenSolid, semi-solid or viscous hydrocarbon with a colloidal structure, being brown to black in color,
obtained as a residue in the distillation of crude oil, vacuum distillation of oil residues fromatmospheric distillation. Bitumen is often referred to as asphalt and is primarily used for surfacingof roads and for roofing material. This category includes fluidized and cut back bitumen. See tar
sand.
Bituminous coal
A dense coal, usually black, sometimes dark brown, often with well-defined bands of bright and dullmaterial, used primarily as fuel in steam-electric power generation, with substantial quantities also
used for heat and power applications in manufacturing and to make coke.
Brown coal
Brown coal (lignite) is a non-agglomerating coal with a gross calorific value of less than 17,435
kJ/kg (4,165 kcal/kg), and greater than 31 percent volatile matter on a dry mineral matter freebasis.
Brown coal briquettes (BKB)
Brown coal briquettes (BKB) are composition fuels manufactured from lignite/brown coal, producedby briquetting under high pressure. These figures include dried lignite fines and dust.
Coke breeze
See coke oven coke.
Coke oven coke
Coke oven coke is the solid product obtained from the carbonization of coal, principally coking
coal, at high temperature. It is low in moisture content and volatile matter. Also included are semiPage 5 of 16@cdp | www.cdp.net

coke, a solid product obtained from the carbonization of coal at a low temperature, lignite coke,semi-coke made from lignite/brown coal, coke breeze and foundry coke. Coke oven coke is also
known as metallurgical coke.
Coking coal
Coking coal refers to bituminous coal with a quality that allows the production of a coke suitable tosupport a blast furnace charge. Its gross calorific value is greater than 23,865 kJ/kg (5,700 kcal/kg)
on an ash-free but moist basis.
Gas cokeSee coke oven coke.
LigniteLignite (brown coal) as a non-aggregating coal with a gross calorific value of less than 17,435
kJ/kg (4,165 kcal/kg), and greater than 31% volatile matter on a dry mineral matter free basis.
Lignite coke
Often referred to as brown coal, or Rosebud coal, is a soft brown fuel with characteristics that put it
somewhere between coal and peat. It is considered the lowest rank of coal. Lignite is brownishblack in color and has a carbon content of around 25-35%, a high inherent moisture content and an
ash content ranging from 6% to 19% compared with 6% to 12% for bituminous coal.
Metallurgical coke
See coke oven coke.
Municipal waste (Non-biomass fraction)
Non-biomass fraction of municipal waste includes waste produced by households, industry,
hospitals and the tertiary sector which are incinerated at specific installation and are used forenergy purposes. Only the fraction of the fuel that is non-biodegradable should be included here.
Patent fuelPatent fuel is a composition fuel manufactured from hard coal fines with the addition of a binding
agent. The amount of patent fuel produced may, therefore, be slightly higher than the actual
amount of coal consumed in the transformation process.
Peat
Combustible soft, porous or compressed, fossil sedimentary deposit of plant origin with high watercontent (up to 90% in the raw state), easily cut, of light to dark brown color. Peat consists ofpartially decomposed plant debris. It is considered an early stage in the development of coal. Peatis distinguished from lignite by the presence of free cellulose and a high moisture content(exceeding 70%).
Petroleum coke
A black solid residue, obtained mainly by cracking and carbonizing of residue feedstocks, tar andpitched in processes such as delayed coking or fluid coking. It consists mainly of carbon (90 to95%) and has a low ash content. It is used as a feedstock in coke ovens for the steel industry, forheating purposes, for electrode manufacture and for production of chemicals. The two mostimportant qualities are “green coke” and “calcinated coke”. This category also includes “catalystcoke” deposited on the catalyst during refining processes: this coke is not recoverable and isusually burned as refinery fuel.
Refuse-derived fuel (RDF)
A fuel produced by shredding municipal solid waste (MSW). Non-combustible materials such as
glass and metals are generally removed prior to making RDF. The residual material is sold as-is orPage 6 of 16@cdp | www.cdp.net

compressed into pellets, bricks or logs. Only the fraction of the fuel that is biodegradable can be
included as renewable energy, when calculating renewable energy consumption totals. RDF
processing facilities are typically located near a source of MSW, while the RDF combustion facility
can be located elsewhere.
Semi-coke
See coke oven coke.
Subbituminous coal
Non-agglomerating coals with a gross calorific value between 17,435 kJ/kg (4,165 kcal/kg) and
23,865 kJ/kg (5,700 kcal/kg) containing more than 31% volatile matter on a dry mineral matter freebasis.

Waste tire derived fuels
Processed tires typically used in very high heat operations like cement, power generation and steel
manufacturing. The tire burns completely at 650°C, producing principally carbon dioxide and water.
Tire derived fuels have a net calorific value of between 26 and 34GJ per tone, which is similar tothat of common fuel sources such as coal.
Waxes
A solid or semi-solid material derived from petroleum distillates or residues by such treatments aschilling, precipitating with a solvent or de-oiling. It is a light-colored, more-or-less translucent
crystalline mass, slightly greasy to the touch, consisting of a mixture of solid hydrocarbons in which
the paraffin series predominates. Includes all marketable wax, whether crude scale or fully refined.

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Liquid fossil fuels
Aviation gasoline
Aviation gasoline is motor spirit prepared especially for aviation piston engines, with an octane
number suited to the engine, a freezing point of -60°C and a distillation range usually within thelimits of 30°C and 180°C.
Crude oil
Crude oil is a mineral oil consisting of a mixture of hydrocarbons of natural origin, being yellow toblack in color, of variable density and viscosity. It also includes lease condensate (separator
liquids), which are recovered from gaseous hydrocarbons in lease separating facilities.
Distillate fuel oil
A general classification for one of the petroleum fractions produced in conventional distillation
operations. It includes fuels and fuel oils.
 No. 1 Distillate: A light petroleum distillate that can be used as either a diesel fuel or a fueloil.
 No. 2 Distillate: A petroleum distillate that can be used as either a diesel fuel or a fuel oil.
 No. 4: A distillate fuel oil made by blending distillate fuel oil and residual fuel oil stocks.
Diesel/Gas oil
Gas/diesel oil includes heavy gas oils. Gas oils are obtained from the lowest fraction fromatmospheric distillation of crude oil, while heavy gas oils are obtained by vacuum redistillation of
the residual from atmospheric distillation. Diesel/Gas oil distils between 180°C and 380°C. Several
grades are available depending on uses: diesel oil for diesel compression ignition (cars, trucks,
marine, etc.), light heating oil for industrial and commercial uses and other gas oil including heavy
gas oils which distil between 380°C and 540°C and are used as petrochemical feedstocks.
Jet gasoline
This includes all light hydrocarbon oils for use in aviation turbine power units. They distil between
100°C and 250°C. It is obtained by blending kerosenes and gasoline or naphthas in such a waythat the aromatic content does not exceed 25% in volume, and the vapor pressure is between 13.7
kPa and 20.6 kPa. Additives can be included to improve stability and combustibility.
Jet kerosene
This is medium distillate used for aviation turbine power units. It has the same distillation
characteristics and flash point as kerosene (between 150°C and 300°C but not generally above
250°C). In addition, it has particular specifications (such as freezing point) which are establishedby the International Air Transport Association (IATA).
Kerosene
A petroleum distillate that has a maximum distillation temperature of 401 degrees Fahrenheit (205degrees Celsius) at the 10% recovery point, a final boiling point of 572 degrees Fahrenheit (300
degrees Celsius) and a minimum flash point of 100 degrees Fahrenheit. Comprises refined
petroleum distillate intermediate in volatility between gasoline and gas/diesel oil. Used in spaceheaters, cookstoves, and water-heaters and suitable for use as an illuminant when burned in wicklamps.
Lubricants

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Lubricants are hydrocarbons produced from distillate or residue; they are mainly used to reduce
friction between bearing surfaces. This category includes all finished grades of lubricating oil, fromspindle oil to cylinder oil, and those used in greases, including motor oils and all grades of
lubricating oil base stocks.
Motor gasoline
This is light hydrocarbon oil for use in internal combustion engines such as motor vehicles,
excluding aircraft. Motor gasoline in distilled between 35°C and 215°C and is used as a fuel forland-based spark ignition engines. Motor gasoline may include additives, oxygenated and octane
enhancers, including lead compounds such as TEL (Tetraethyl lead) and TML (Tetramethyl lead).
NaphthaNaphtha is a feedstock destined either for the petrochemical industry (e.g. ethylene manufacture or
aromatics production) or for gasoline production by reforming or isomerization within the refinery.
Naphtha comprises material in the 30°C and 210°C distillation range or part of this range.
Natural gas liquids
Natural gas liquids (NGLs) are the liquid or liquefied hydrocarbons produced in the manufacture,
purification and stabilization of natural gas. These are those portions of natural gas which arerecovered as liquids in separators, field facilities or gas processing plants. NGLs include but are
not limited to ethane, propane, butane, pentane, natural gasoline and condensate. They may also
include small quantities of non-hydrocarbons.
Oil shale and tar sands
Oil shale is an inorganic, non-porous rock containing various amounts of solid organic material thatyields hydrocarbons, along with a variety of solid products, when subjected to pyrolysis (atreatment that consists of heating the rock at high temperature). Tar sands refers to sand (orporous carbonate rocks) that are naturally mixed with a viscous form of heavy crude oil sometimes
referred to as bitumen. Due to its high viscosity this oil cannot be recovered through conventional
recovery methods.
Orimulsion
A tar-like substance that occurs naturally in Venezuela. It can be burned directly or refined into light
petroleum products.
Pitch
Any various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar
or petroleum and used for waterproofing, roofing, caulking, and paving.
Refinery feedstocks
A refinery feedstock is a product or a combination of products derived from crude oil and destinedfor further processing other than blending in the refining industry. It is transformed into one or morecomponents and/or finished products. This definition covers those finished products imported forrefinery intake and those returned from the petrochemical industry to the refining industry.
Residual fuel oil
This heading defines oils that make up the distillation residue. It comprises all residual fuel oils,
including those obtained by blending. Its kinematic viscosity is above 0.1cm2 at 80°C. The flash
point is always above 50°C and the density is always more than 0.90kg/l.
Shale oilA mineral oil extracted from oil shale.
Tar

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A dark, oily, viscous material, consisting mainly of hydrocarbons, produced by the destructive
distillation of organic substances such as wood, coal or peat.
Waste oils
Petroleum-based materials that are worthless for any purpose other than fuel use.
Waste plastics
Common plastics broken down into a synthetic fuel. Common processes involved liquefaction,
pyrolysis and the catalytic breakdown of plastics.
White spirit/SBP
White spirit and SBP are refined distillate intermediates with a distillation in the naphtha/kerosene
range. They are sub-divided as: i) Industrial Spirit (SBP): Light oils distilling between 30°C and
200°C, with a temperature difference between 5% volume and 90% volume distillation points,
including losses, of not more than 60°C. In other words, SBP is a light oil of narrower cut thanmotor spirit. There are 7 or 8 grades of industrial spirit, depending on the position of the cut in the
distillation range defined above. ii) White Spirit: Industrial spirit with a flash point above 30°. The
distillation range of white spirit is 135°C to 200°C.

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Gaseous fossil fuels
Blast furnace gas
Blast furnace gas is produced during the combustion of coke in blast furnaces in the iron and steel
industry. It is recovered and used as a fuel partly within the plant and partly in the other steel
industry processes or in power stations equipped to burn it.
ButaneA normally gaseous straight-chain or branch-chain hydrocarbon extracted from natural gas orrefinery gas streams.
Coke oven gas
Coke oven gas is obtained as a by-product of the manufacture of coke oven coke for the
production of iron and steel.
EthaneEthane is a naturally gaseous straight-chain hydrocarbon (C2H6). It is a colorless paraffinic gas
which is extracted from natural gas and refinery gas streams.
Gas works gas
Gas works gas covers all types of gases produced in public utility or private plants, whose main
purpose is manufacture, transport and distribution of gas. It includes gas produced bycarbonization (including gas produced by coke ovens and transferred to gas works gas), by total
gasification with or without enrichment with oil products (LPG, residual fuel oil, etc), and byreforming and simple mixing of gases and/or air. It excludes blended natural gas, which is usuallydistributed through the natural gas grid.
Liquefied petroleum gases (LPG)
These are the light hydrocarbons fraction of the paraffin series, derived from refinery processes,
crude oil stabilization plants and natural gas processing plants comprising propane (C3H8) andbutane (C4H10) or a combination of the two. They are normally liquefied under pressure fortransportation and storage.
Liquefied natural gas (LNG)
Natural gas cooled to approximately -160°C (-256°F) under atmospheric pressure condenses to its
liquid form called LNG. LNG is odorless, colorless, non-corrosive and non-toxic.
MethaneA hydrocarbon that is a greenhouse gas with a global warming potential recently estimated at 21.
Methane is produced through anaerobic (without oxygen) decomposition of waste landfills, animal
digestion, decomposition of animal wastes, production and distribution of natural gas andpetroleum, coal production and incomplete fossil fuel combustion.
Natural gas
Natural gas should include: (1) Blended natural gas (sometimes also referred to as Town Gas orCity Gas), a high calorific value obtained as a blend of natural gas with other gases; (2) City Gas, ahigh calorific value gas obtained as a blend of natural gas with other gases derived from otherprimary products, and usually distributed through the natural gas grid (e.g. coal seam methane);(3) Substitute natural gas, a high calorific value gas, manufactured by chemical conversion of ahydrocarbon fossil fuel, where the main raw materials are: natural gas, coal, oil and oil shale.

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Oxygen steel furnace gas
Oxygen steel furnace gas is obtained as a by-product of the production of steel in an oxygen
furnace and is recovered on leaving the furnace. The gas is also known as a converter gas, LD gas
or BOS gas.
PropaneA normally gaseous straight-chain hydrocarbon. It is a colorless paraffinic gas that boils at atemperature of -43.67°F (-42.04°C). It is extracted from natural gas or refinery gas streams.
Refinery gas
Refinery gas is defined as non-condensable gas obtained during distillation of crude oil ortreatment of oil products (e.g. cracking) in refineries. It consists mainly of hydrogen, methane,
ethane and olefins. It also includes gases which are returned from the petrochemical industry.
Town gas or city gas
Natural gas should include blended natural gas (sometimes also referred to as Town Gas or CityGas), a high calorific value gas obtained as a blend of natural gas with other gases derived fromother primary products, and usually distributed through the natural gas grid (e.g. coal seam
methane). Blended natural gas should include substitute natural gas, a high calorific value gas,manufactured by chemical conversion of a fossil fuel, where the main raw materials are: naturalgas, coal, oil and oil shale.

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Biomass
Biodiesels
Biodiesels should only contain that part of the fuel that relates to the quantities of biofuel and not to
the total volume of liquids into which the biofuels are blended. This category includes biodiesel (amethyl-ester produced from vegetable or animal oil, of diesel quality), biodimethylether(dimethylether produced from biomass), fischer tropsh (fischer tropsh produced from biomass),cold pressed bio oil (oil produced from oil seed through mechanical processing only) and all otherliquid biofuels which are added to, blended with or used straight as transport diesel.
Biogas
A gas composed principally of methane (50-60%) and carbon dioxide produced by anaerobic
digestion of biomass, comprising.
 Landfill gas, formed by the digestion of landfill wastes; Sewage sludge gas, produced from the anaerobic fermentation of sewage sludge;
 Other biogas, such as biogas produced from the anaerobic fermentation of animalslurries and of wastes in abattoirs, breweries and other agro-food industries
Biogasoline
Biogasoline should only contain that part of the fuel that relates to the quantities of biofuel and not
to the total volume of liquids into which biofuels are blended. This category includes bioethanol(ethanol produced from biomass and/or the biodegradable fraction of waste), biomethanol(methanol produced from biomass and/or the biodegradable fraction of waste), bioETBE (ethyltertio-butyl-ether produced on the basis of bioethanol: the percentage by volume of bioETBE that is
calculate as biofuel is 47%) and bioMTBE (methyl-tertio-butyl-ether produced on the basis ofbiomethanol: the percentage by volume or bioMTBE that is calculated as biofuel is 36%).
Charcoal
Charcoal combusted as energy covers the solid residue of the destructive distillation and pyrolysis
of wood and other vegetal material.
Landfill gas
Landfill gas is derived from the anaerobic fermentation of biomass and solid wastes in landfills andmay be combusted to produce heat and/or power.
Municipal wastes (Biomass fraction)
Biomass fraction of municipal waste includes waste produced by households, industry, hospitals
and the tertiary sector which are incinerated at specific installations and used for energy purposes.
Only the fraction of the fuel that is biodegradable should be included as renewable energy, whencalculating consumption totals.
Sludge gas
Sludge gas is derived from the anaerobic fermentation of biomass and solid wastes from sewage
and animal slurries and combusted to produce heat and/or power.
Sulfite lyes (Black liquor)
Sulfite lyes is an alkaline spent liquor from the digesters in the production of sulphate or soda pulp
during the manufacture of paper where the energy content derives from the lignin removed fromthe wood pulp. This fuel in its concentrated form is usually 65-70% solid.

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Turpentine
A thin volatile essential oil, obtained by steam distillation or other means from the wood or
exudates of certain pine trees and used as a paint thinner, solvent and medicinally as a liniment.
Vegetable oils
Lipid materials derived from plants. Although many different parts of plants may yield oil, incommercial practice oil is extracted primarily from seeds. Oils are composed of triglycerides andused in lubricants, paints, cosmetics, pharmaceuticals and other industrial processes.
Wood or Wood waste
Wood and wood waste combusted directly for energy. This category also includes wood forcharcoal production but not the actual production of charcoal (this would be double counting sincecharcoal is a secondary product).

Reporting fuel use in the CDP Corporate Questionnaire
In the CDP corporate questionnaire, companies are requested to disclose their consumption offuels by type (7.30.7, 7.30.8), feedstock source (7.31.2), or by power generation technology orsource (7.46, 5.7). In each of these questions, substances derived from coal should be reported in
the row “Coal”, substances derived from crude oil should be reported in the row “Oil”, andsubstances derived from natural gas should be reported in the row “Gas”. The table below contains
a list of substances derived from coal, crude oil, and natural gas, as well as biomass and nonbiomass fuels. Companies may contact their fuel suppliers for further information about the specificfuels they are using and whether they are derived from coal, crude oil, or natural gas.
Fuel Type
Crude oil &derivedsubstances

Crude oil
Orimulsion
Natural Gas Liquids
Motor Gasoline
Aviation Gasoline
Jet Gasoline
Jet Kerosene
Other Kerosene
Shale oil
Gas/Diesel oil
Residual Fuel oil
Liquefied Petroleum Gases
EthaneNaphtha
BitumenLubricantsPetroleum coke

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Fuel Type
Refinery feedstocks
Refinery Gas
Paraffin waxes
White Spirit & SBP
Other petroleum products
Coal &
derivedsubstances

Anthracite
Coking coal
Other bituminous coalSub-bituminous coalLigniteOil shale and tar sands
Brown coal briquettes
Patent fuelCoke oven coke & lignite cokeGas coke
Coal tar
Gas works gas
Coke oven gas
Blast furnace gas
Oxygen steel furnace gas

Natural gas

Natural Gas

Non-biomass
waste fuels

Municipal wastes (non-biomass fraction)
Industrial wastes
Waste oils

Biomass
fuels

Wood/Wood waste
Sulphite lyes (Black liquor)
Other primary solid biomass fuels
Charcoal
Biogasoline
Biodiesels
Other liquid biofuels
Landfill gas
Sludge gas
Other biogas

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Fuel Type
Municipal wastes (biomass fraction)

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