Carbon removal

Producing biochar in Surrey

Producing biochar in Surrey
Producing biochar in Surrey
Producing biochar in Surrey
Producing biochar in Surrey

While cutting greenhouse-gas emissions remains essential for tackling climate change, science increasingly recognises that carbon removals, actively extracting CO₂ from the atmosphere and storing it, will be indispensable to meet ambitious climate goals. Models indicate that pathways limiting warming to 1.5°C require both carbon removal and deep emission cuts. According to the World Resources Institute, carbon removal is “the only way to remove excess CO₂ in the atmosphere that’s causing the worsening climate impacts we’re seeing today.”

One promising carbon-removal approach is biochar,  a form of charcoal created by heating organic material, known as biomass, in an oxygen-free environment at temperatures of 400°C or higher. This process, called pyrolysis, produces energy-rich gases and liquids as well as a solid product—biochar. When applied to soils, biochar not only locks carbon underground for long periods (hundreds to thousands of years) but also enhances soil health, nutrient retention, and crop yields.

In the UK context:

  • Biochar is explicitly cited in the UK’s carbon-budget pathways as a form of engineered greenhouse-gas removal (GGR), projected to remove around 3 MtCO₂ per year by 2050, about 8% of the UK’s engineered GGR requirement.

  • The UK biochar market was valued at USD 1.96 billion in 2022, projected to grow at ~15.5% CAGR through 2030.

  • Trials show tangible soil benefits in England (e.g., improved water retention, nutrient exchange, aeration) and biochar’s potential to support both agriculture and carbon-sequestration objectives.

Biochar stands out as a dual-benefit solution: removing carbon and improving agricultural productivity.

The project:

Brodie Biomass Ltd (BBL) is a sustainable farming enterprise located near Brockham in Surrey, England, dedicated to environmental stewardship through innovative biochar production. The company sources locally available timber offcuts and coppiced wood, which are converted into high-quality biochar using advanced pyrolysis technology. This process supports a zero-waste model, transforming wood residues that might otherwise be burned or left to decompose into a stable carbon-rich product with multiple uses. 

Revenues from the sale of certified carbon credits play a critical role in enabling expansion, funding new pyrolysis units, and supporting distribution through new retail channels. In doing so, Brodie Biomass demonstrates how regionally grounded biochar production in England can combine carbon removal, soil restoration, and rural economic development within a single, scalable model for climate action.

Locations

Surrey , United Kingdom

Timeline

Follow the latest milestones and updates from this project.

Aug 2026
Ecologi site visit to Brodie Biomass!

Ecologi site visit to Brodie Biomass!

In May, the Ecologi team visited the Brodie Biomass farm to conduct an audit and carry out internal due diligence checks.

The team at Brodie uses offcuts of timber sourced within a 25-mile radius. Unlike many industrial biomass facilities that transport feedstock over large distances, Brodie's model is intentionally local.

Brodie Biomass founder Alex Brodie explained that local tree surgeons are already winning additional contracts because clients increasingly recognise the value of ensuring tree offcuts are used for carbon removal rather than simply disposed of!

You can read more about our visit or watch our video.

Apr 2026
Biochar lab results indicate low H/C ratio and high carbon content

Biochar lab results indicate low H/C ratio and high carbon content

Woodtek implemented significant upgrades to the Bibi C1000 pyrolysis unit in 2025, including adding a fan and modifying the biochar exit system from the pyrolysis grates.

These enhancements resulted in the production of exceptionally high-quality biochar. Independent testing by Eurofins confirmed the following results:

  • H/C Ratio: 0.07
  • Carbon Content: 86.2%

These metrics, particularly the very low H/C ratio and high carbon content, are indicative of a highly stable, premium-grade biochar with excellent long-term carbon sequestration potential.

Feb 2026
Improving energy efficiency in UK biochar production

Improving energy efficiency in UK biochar production

In 2025, Brodie Biomass continued its operations in line with its Project Design Document (PDD).

Looking ahead, Brodie is hoping in 2026 to purchase an Organic Ranking Cycle (ORC), which would support improved power/heat production efficiency. In addition, over the coming months, Cula (MRV) technology is expected to be installed at the site to strengthen monitoring and reporting capabilities.

Benefits

Biochar is a carbon-rich, highly stable soil amendment produced as a by-product of pyrolysis, which generates energy from biomass in the absence of oxygen. When biomass decomposes, carbon and methane escape into the atmosphere. Biochar retains most of the carbon. If we bury it, that carbon can be held for centuries in the soil.

This process can produce energy, improve soils, and store carbon. This solution provides an alternative to disposing of unused biomass through burning or decomposition.

Sustainable development goals

These Sustainable Development Goals show the wider outcomes this project supports beyond its headline impact.

Climate Action

This project supports SDG 13 by reducing emissions through carbon sequestration and sustainable biochar production.

Verification

These partners help deliver the project and verify its impact.

Verifier

Puro Earth

Puro Earth

Puro.earth certifies carbon removal suppliers based on its Puro Standard.