Energy & Transition
Bioenergy with Carbon Capture and Storage (BECCS)
Burning or converting biomass for energy while capturing and geologically storing the CO₂ — one of the few technologies that generates energy while removing carbon from the atmosphere.
Expert review openNo editor-accepted expert review yetDefinition
A carbon dioxide removal (CDR) route that couples bioenergy production with carbon capture and storage: biomass absorbs CO₂ from the atmosphere as it grows; when it is converted to heat, power or fuels, the resulting biogenic CO₂ is captured and permanently stored underground rather than re-released. Because the carbon originated in the atmosphere, the chain can deliver net-negative emissions — unlike CCS on fossil fuels, which only avoids adding carbon.
References
Negative-emissions mechanism (biogenic vs fossil CO₂ capture); energy co-benefit; Denmark/Sweden frontrunners; geological storage timescales vs land-based CDR.
Stockholm Exergi case (800 kt/yr, EIB/Innovation Fund, Microsoft certificates); EU 2040 modelling (33 Mt BECCS); RED sustainability constraints; EU ETS non-recognition of removals.
Overview
What it means
BECCS features prominently in 1. 5°C and 2°C scenarios because it produces dispatchable energy while removing carbon — a combination other CDR methods (which consume energy) lack.
Current deployment is small: roughly 2 Mt of CO₂ removal per year (IEA), though frontrunner projects such as Stockholm Exergi's BECCS plant (up to 800,000 t/yr, financed with EU Innovation Fund and EIB support, selling removal certificates to buyers including Microsoft) signal scale-up. Denmark and Sweden lead on policy, Denmark having contracted about 0. 6 Mt/yr of capture from 2026.
How it is used
Applications attach capture to existing biogenic point sources — biomass power plants, pulp and paper mills, bioethanol fermentation (cheap, pure CO₂), and waste-to-energy. Constraints are biomass sustainability (land use, cascading-use rules, GHG-saving thresholds under frameworks like the EU RED) and the absence, so far, of removals in compliance markets such as the EU ETS.
Why it matters
Scenario arithmetic gives BECCS a large mid-century role; its real-world record is a handful of projects. Whether it becomes a climate tool or a modelling crutch depends on sustainable biomass supply and credible removal accounting — a live regulatory frontier (EU CRCF).
Review
Public comments appear only after editor acceptance. Draft comments stay in the review queue.
Reviewers choose the definition or an overview paragraph, leave a comment or replacement, and attach evidence or a source link.
Editors compare reviewer cards side by side. AI may help find agreement, conflicts, unsupported claims and possible source issues.
Only an editor-accepted synthesis changes the public page. Reviewer identities are shown only with consent and verification.
Submitted reviews stay private until accepted.
Loading verified endorsements… Endorsements are not votes and never determine publication.
Endorse this definition
Endorse the exact version shown here. This is not a vote, and publication remains an editorial decision.
Review board
Comment on a specific line. Each reviewer stays separate until an editor accepts a merged draft.
Each person comments on the definition or overview in their own draft card, with role, evidence and suggested wording kept together.
AI can compare comments against the current text, flag conflicting claims, surface missing evidence and identify where reviewers agree.
An editor merges compatible suggestions into a draft change, checks sources, records disagreements and decides what can be published.