Biochar can earn some of the most durable carbon-removal credits on the market. Here's how it works in 2026 — removal vs avoidance, the kiln-to-credit MRV path, where prices sit, and why who keeps the revenue is the question that matters most.
Reviewed by Agpro Carbon Team · Carbon methodology & MRV reviewer
Biochar sits in a rare category: a climate action a farmer can take that produces something useful on the farm and one of the more durable carbon-removal credits money can buy. The mechanics are worth understanding before the marketing — especially the part about who keeps the money.
How do biochar carbon credits work?
When residue is pyrolysed into biochar, much of its carbon is locked into a stable solid that resists breaking down for a long time. A registry methodology measures and verifies how much CO₂ that represents, then issues carbon-removal credits for it. Because the carbon is genuinely removed and durably stored, these credits command a premium over cheaper "avoidance" credits.
Every figure here is an estimate
Carbon-revenue figures on this site are estimates for illustration only — not guarantees. Actual credits and payments depend on biomass volume, biochar quality, MRV results, registry methodology, and carbon prices at the time of issuance.
Not all carbon credits are the same, and the difference decides the price.
An avoidance credit pays for an emission that did not happen — protecting a forest that might have been cut, say. A removal credit pays for CO₂ actually pulled out of the atmosphere and stored. Removal is scarcer and more valuable, and within removal, durability matters: how long the carbon stays put.
Biochar scores well on both. The carbon is removed (the plant pulled CO₂ from the air; pyrolysis then stabilises it), and biochar's structure keeps that carbon locked away for a long time. Real removal plus longevity is exactly what serious buyers want.
Prices are a range, not a number — and they move. With that firmly flagged as estimate territory:
Puro.earth / Nasdaq CORC biochar index range per tonne CO₂e through 2025 (estimate)
The market is also getting deeper. Industry trackers point to a growing pipeline of registered projects and issuance heading into 2026.
Isometric-registered biochar projects, with ~500,000 credits expected in 2026 (estimate)
A common rule of thumb is around 2–3 tonnes of CO₂e per tonne of biochar. Useful for a back-of-envelope sense of scale — and nothing more.
Rough CO₂e represented per tonne of biochar; the exact factor is set by methodology (estimate)
The real figure for any project comes from its measured carbon content and the registry's methodology, not from a generic multiplier. Anyone quoting a precise revenue number before measurement is guessing.
MRV — measurement, reporting, and verification — is the bridge between a kiln and a credit. In outline:
| Stage | What happens | Who relies on it |
|---|---|---|
| Production | Residue pyrolysed into biochar | Farmers and kiln operators |
| Measurement | Carbon content and quality sampled | Project developer |
| Verification | Independent check of data and storage | Registry and buyers |
| Issuance | Credits minted for verified CO₂e | Buyers and the market |
Biochar carbon removal is recognised by registries including Puro.earth, Isometric, and Verra. Which one fits depends on the residue, the volume, and the project's goals.
The credits are real and the demand is real. The open question is distribution — and this is where most models quietly fail farmers.
Fair benefit-sharing
We believe in fair benefit-sharing: the farmers and operators who supply the biomass and run the kilns should keep the majority of the carbon revenue — not hand over the 20–50% commission that many carbon intermediaries charge.
A premium credit is worth little to a farmer if most of its value is skimmed before it reaches them. Durable removal earns the premium; fair benefit-sharing decides whether that premium reaches the people doing the work. Both have to be true for biochar carbon credits to mean something on the ground — and the honest first step is a project-specific feasibility assessment, not a headline number.
Get a project-specific feasibility assessment — residue, biochar, and an honest carbon-revenue estimate.