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Bioenergy
Why is it important?
Bioenergy is produced from organic material, known as biomass, which contains carbon absorbed by plants through photosynthesis. When this biomass is used to produce energy, the carbon is released during combustion and returned to the atmosphere. As more biomass is produced, an equivalent amount of carbon is absorbed, making modern bioenergy a near-zero emissions fuel. It is the largest source of renewable energy globally, accounting for almost 55% of renewable energy (excluding traditional use of biomass) and over 6% of global energy supply.
What is the role in clean energy transitions?
Modern bioenergy is an important source of renewable energy - its contribution to final energy demand (including its share of electricity and district heating demand) is currently four times higher than electricity demand covered by wind and solar PV combined. Heating remains the largest use of bioenergy, and while space heating will be increasingly electrified, bioenergy plays a major role in hard-to-electrify sectors such as aviation and shipping.
Where do we need to go?
Modern bioenergy does not include the traditional use of biomass in developing countries and emerging economies for cooking and heating with open fires or simple stoves, which badly impairs human health and the environment. Traditional use of biomass falls to zero by 2030 in the Net Zero Emissions by 2050 Scenario to achieve the United Nations Sustainable Development Goal 7 on Affordable and Clean Energy.
Tracking Bioenergy
Bioenergy is a source of energy from the organic material that makes up plants, known as biomass. Biomass contains carbon absorbed by plants through photosynthesis. When this biomass is used to produce energy, the carbon is released during combustion and returned to the atmosphere, making modern bioenergy a low-emissions fuel.
Modern bioenergy is the largest source of renewable energy globally today, accounting for almost 55% of renewable energy (excluding traditional use of biomass) and over 6% of global energy supply. The Net Zero Emissions by 2050 (NZE) Scenario sees a rapid increase in the use of bioenergy to displace fossil fuels by 2030. Use of modern bioenergy has increased on average by about 4% per year between 2010 and 2023 and is on an upward trend. More efforts are needed to accelerate modern bioenergy deployment to get on track with the Net Zero Scenario, which requires deployment to increase by 8% per year between 2023 and 2030, while simultaneously ensuring that bioenergy production does not incur negative social and environmental consequences.
Brazil, the European Union and India adopted new bioenergy policies in 2023 and 2024.
Brazil, the European Union and India adopted new bioenergy policies in 2023 and 2024.
- Brazil leads the world in biofuel demand and production growth, accounting for near half of the global increase to 2030. On October 9th, Brazil’s president signed the Fuel of the Future law setting blending levels for biomethane, higher blending levels for ethanol and biodiesel while also setting greenhouse gas targets for the aviation sector and a national programme for Green Diesel.
- The latest iteration of the European Union’s Renewable Energy Directive (RED III), approved in 2023, doubles the renewable energy target in the transport sector to 29% by 2030 or a 14.5% GHG emissions intensity reduction. The RED also outlines feedstock limitations such as caps on food and feed crops, as well as targets for advanced fuels (5.5% by 2030, 1 percentage point of which is to come from synthetic fuels).
- In November of 2023, India announced mandatory blending of compressed bio-gas starting at 1% in 2025-2026 and climbing to 5% by 2028-2029. Biogas and compressed biogas use is forecast to expand by near 90% by 2030 from 2023 levels (excluding household digesters) thanks to the planned mandate and other active policies in the country.
- In 2024, Kenya launched its National Cooking Transition Strategy to provide universal access to clean cooking by 2028 with a focus on biomass cookstoves and bioethanol. This action helps to expand the use of modern bioenergy and reduce the traditional use of biomass.
Bioenergy has a critical role to play in getting on track with the Net Zero Scenario
Bioenergy has a critical role to play in getting on track with the Net Zero Scenario
Bioenergy is an important pillar of decarbonisation in the energy transition as a low-emissions fuel. Bioenergy is useful in its flexibility in the contexts and sectors in which it can be used, from solid bioenergy and biogases combusted for power and heat in homes and industrial plants to liquid biofuels used in cars, ships and planes. Furthermore, it can often take advantage of existing infrastructure – for instance, biomethane can use existing natural gas pipelines and end-user equipment, while many drop-in liquid biofuels can use existing oil distribution networks and be used in vehicles with only minor alterations.
Bioenergy use needs to increase in a wide variety of applications by 2030 to get on track with the Net Zero Scenario, including the following:
- Biojet kerosene used in air travel increases from around zero in 2023 to account for almost 10% of all aviation fuel demand in 2030.
- Liquid biofuel consumption more than doubles from 2.3 million barrels of oil equivalent per day (mboe/d) (4.6 EJ) in 2023 to 6.0 mboe/d (12 EJ) in 2030, mainly for road transport.
- Bioenergy use in industry increases substantially, from supplying a little over 11 EJ (6% of energy use) of energy in 2023 to almost 17 EJ (9.4%) in 2030, mostly in pulp and paper, food and tobacco, and non-metallic minerals industries.
- Biomethane used in the gas grid to heat buildings grows from very small quantities today to reach just under 1.6 EJ in 2030.
- Bioenergy used for electricity generation provides dispatchable, low-emissions power to complement generation from variable renewables. Its use nearly doubles, from generating about 700 TWh of electricity (2.4% of total generation) in 2023 to around 1 250 TWh (3.2% of total generation) in 2030.
- Bioenergy with carbon capture and storage (BECCS) – which creates negative emissions by capturing and storing bioenergy emissions that are already carbon-neutral – also plays a critical role. BECCS captured and stored 1.5 Mt of CO2 in 2023 and increases to around 180 Mt of CO2 in 2030, offsetting emissions from sectors where abatement will be most difficult.
Bioenergy is one component of the overall increase in renewable energy in the Net Zero Scenario.
Aligning with the Net Zero Scenario will require not only an accelerated increase in modern bioenergy use, but also a phase out of traditional use of biomass
Aligning with the Net Zero Scenario will require not only an accelerated increase in modern bioenergy use, but also a phase out of traditional use of biomass
Bioenergy use by sector globally in the Net Zero Scenario, 2010-2030
OpenTotal global bioenergy use in 2030 under the Net Zero Scenario is only about 17% higher than in 2023, although this by itself does not tell the full story. Near 32% of the bioenergy used in 2023 was from biomass for traditional cooking methods such as over open fires – practices that are unsustainable, inefficient, polluting and were linked to almost 3 million premature deaths from indoor air pollution in 2023 alone. The use of traditional biomass falls to zero by 2030 in the Net Zero Scenario, in line with the United Nations Sustainable Development Goal 7 on Affordable and Clean Energy. Modern bioenergy usage, which excludes traditional uses of biomass, nearly doubles from about 21 EJ in 2023 (4.5% of total final consumption) to 39 EJ in 2030 (9.5% of total final consumption). This requires the average annual rate of growth to increase from 2.5% over 2010-2023 to 9.3% over 2024-2030.
The Net Zero Scenario sees the traditional use of biomass in rural areas partly replaced by biogas digesters, bioethanol and solid biomass used in modern cookstoves, providing a source of clean cooking for more than 700 million people by 2030. Sustainable bioenergy also provides a valuable source of employment and income for rural communities, reduces undue burdens on women who are often tasked with fuel collection, brings health benefits from reduced air pollution and proper waste management, and reduces methane emissions from waste decomposition. More needs to be done to phase out the traditional use of biomass, as its use in absolute terms has stayed relatively constant since 2016.
Increasing bioenergy production from sustainable sources will be necessary to get on track with the Net Zero Scenario
Increasing bioenergy production from sustainable sources will be necessary to get on track with the Net Zero Scenario
Bioenergy supply globally in the Net Zero Scenario, 2010-2030
OpenBioenergy comes from a variety of different sources. Some bioenergy sources – such as black liquor from paper production – are the by-product of an industrial process that would have taken place anyway. More commonly, though, bioenergy is sourced from purpose-grown crops or trees in a highly land-intensive process relative to other forms of energy. Unsustainable bioenergy production can have social consequences – such as competition for land use and impacts on food prices – as well as negative environmental externalities, such as worsened biodiversity and net increases in emissions.
Aligning with the Net Zero Scenario will require bioenergy production to increase, but care must be taken to ensure that doing so does not result in significant negative effects for society or the environment. In accordance with these sustainability considerations, there is no expansion of cropland for bioenergy nor conversion of existing forested land into bioenergy crop production in the Net Zero Scenario. Under this scenario, in 2030, 60% of bioenergy supply comes from waste and residues that do not require dedicated land use, compared to less than 50% today. Innovation and deployment in biofuel conversion technologies will be required to fully unlock the potential of wastes and residues.
Policy makers are increasingly putting in place schemes to support bioenergy use in their economies, although stronger efforts are needed to get on track with the Net Zero Scenario
Policy makers are increasingly putting in place schemes to support bioenergy use in their economies, although stronger efforts are needed to get on track with the Net Zero Scenario
Many jurisdictions are moving to introduce policies that suggest they see a significant long-term role for bioenergy in the energy transition. These include:
- More than 80 countries, regions and subnational states currently have policies supporting liquid biofuels.
- A number of countries, including Canada, China, Lithuania and the United States, have announced since 2021 that they are investing significantly in the research and deployment of biofuels.
- Additionally, the United States passed the Inflation Reduction Act in August 2022, which includes extended and new policy support for biofuels, biochemicals and biomaterials, particularly advanced biofuels and sustainable aviation fuels.
- India extended its Biomass Programme in 2022 to support solid and gaseous biogas production and use across India to 2026.
- Brazil launched measures to support sustainable biogas production in 2022.
- Canada implemented its Clean Fuel Regulations in July 2023 with support policies to expand feedstock supply.
- In 2022 Indonesia, Brazil and Argentina increased biofuel targets in the transportation sector.
While this progress is positive, bioenergy use has been expanded at a slower rate than is required in the Net Zero Scenario – expanded policy support is therefore needed.
View all bioenergy policies
Recommendations
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It is critical that the increased bioenergy production needed to get on track with the Net Zero Scenario does not create negative impacts on biodiversity, freshwater systems, food availability or human quality of life. Only bioenergy that reduces lifecycle greenhouse gas emissions while avoiding unacceptable social, environmental and economic impacts should receive policy support. Sustainability frameworks can help to phase out the traditional use of biomass and help scale up a variety of sustainable feedstock supplies.
The European Union, the United States (through minimum greenhouse gas thresholds in the Renewable Fuel Standard Program and the incorporation of indirect land use change into California’s Low Carbon Fuel Standard) and Brazil have established frameworks to codify some aspects of liquid biofuel sustainability, but other countries must also ensure that rigorous sustainability governance is linked to bioenergy policy support. More consistent application of criteria, as discussed in “Towards Common Criteria for Sustainable Fuels”, can also help to accelerate bioenergy adoption.
In addition to this, monitoring, reporting and verification frameworks should be employed to address accounting issues related to the use of bioenergy in power generation, especially in relation to negative emissions accounting for BECCS.
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National governments can employ a combination of regulatory measures such as mandates, low-carbon fuel standards and greenhouse gas intensity targets to incentivise modern bioenergy usage. These policies should be implemented within a larger framework for reducing emissions – such as emissions pricing – to ensure that policies provide the incentive to reduce emissions, not simply to increase bioenergy demand.
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Bioenergy offers high flexibility in reducing emissions as it is able to replace fossil fuels in a variety of contexts. Nevertheless, sustainability constraints limit production to 100 EJ and nearly 20% of energy supply by 2050 in the Net Zero Scenario.
Bioenergy policy design should therefore target the highest-value uses for bioenergy in the energy sector, including its use in existing infrastructure, its potential to produce high energy density fuels for long-distance transport, its dispatchability to support the integration of variable renewables into the grid and its usefulness in meeting broader policy objectives, such as waste management and rural development. Power sector policies can design auctions suited to specific grid stability requirements and demand profiles (when power is needed at different times of the day and year), while fuel policies can incentivise use in hard-to-abate areas like aviation.
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Policies incentivising greater use of waste and residues as fuels will be important to get bioenergy on track. Supporting waste- and residue-based energy use in Latin America, China and Association of Southeast Asian Nations (ASEAN) countries would be particularly fruitful as these regions possess significant feedstock resources.
Relevant policies include de-risking measures such as loan guarantees on pre-commercial conversion technology and biofuel quotas for emerging fuels. The Council of the European Union, for example, adopted a new law to decarbonise the aviation sector in October of 2023 supporting an expansion in use of waste- and residue-based fuels. Additionally, support is required for the demonstration and deployment of technologies that can convert waste and residues to finished fuels, particularly woody feedstocks.
In Europe, policies that discourage sending waste to landfills (such as landfill bans or taxation) have prompted higher energy from waste (EfW) development. Improving waste collection and sorting is also necessary to EfW capacity.
Programmes and partnerships
Renewables 2024
This edition of the IEA’s annual Renewables market report provides forecasts for the deployment of renewable energy technologies in electricity, transport and heat to 2030, while also exploring key challenges facing the industry and identifying barriers that are preventing faster growth.
Authors and contributors
Lead authors
Jeremy Moorhouse
Quentin Minier