ReGenEarth Launches £100M Green Bond For Biochar

ReGenEarth, a UK-based sustainability venture founded out of Stephen Lansdown’s Earth Capital, has unveiled a £100 million Green Bond Programme to fund its pioneering carbon-negative biochar initiative. Developed in collaboration with RER, a circular economy energy specialist, the programme is set to revolutionise clean technology investment by merging financial returns with climate resilience and agricultural regeneration.

The bonds, offering a striking 12.5% coupon with a three-year maturity period extending to 2030, are being issued by RER Capital PLC. This purpose-built vehicle for CleanTech finance is leveraging asset-backed securities to deliver attractive investor returns while accelerating the decarbonisation of agriculture and energy sectors. The investment is in line with the International Capital Market Association (ICMA)’s Green Bond Principles and is secured against operational anaerobic digestion (AD) plants and other physical assets. Proceeds will be channelled into a wholly owned subsidiary of ReGenEarth, ensuring full alignment of project delivery with green finance mandates.

At the core of the initiative is biochar, a charcoal-like material produced through pyrolysis—a high-temperature, oxygen-limited process that transforms biomass into a stable form of carbon. Unlike conventional combustion, pyrolysis locks carbon into solid form, preventing it from re-entering the atmosphere. This carbon can then be stored for centuries when used as a soil amendment, delivering what experts term a “carbon sink” effect. The environmental benefits are threefold: it diverts organic waste from landfills, facilitates long-term carbon sequestration, and revitalises degraded soils.

Biochar’s role in sustainable agriculture is significant. Its porous structure enhances soil water retention, fertiliser efficiency, and microbial activity—all critical elements for resilient and productive farming systems. This makes it an increasingly attractive tool for agricultural stakeholders seeking to improve yields while reducing their environmental footprint.

Speaking at the launch event on June 10 at London’s Institute of Engineering & Technology, ReGenEarth CEO Mickey Rooney encapsulated the mission with conviction: “We’re turning waste into climate wealth. Pyrolysis has never been this cool. With 12.5% returns, locking carbon away for centuries, offering fertile ground for crop, climate and cash generation—the question you would have to ask yourself is why would you not want to be part of it?”

The Green Bond Programme is being launched at a time when institutional and retail investors are seeking diversification beyond mature wind and solar portfolios. ReGenEarth’s model offers an alternative exposure into the voluntary carbon credit market and circular economy projects—areas that are gaining traction in global climate finance but remain underrepresented in mainstream investment strategies.

To maximise the efficacy and transparency of its operations, ReGenEarth has established strategic collaborations with three key partners. BeZero, a leading carbon rating agency, will support the assessment and certification of the carbon credits generated through the biochar initiative. Onnu, a company specialising in modular energy and waste systems, brings critical expertise in deploying scalable pyrolysis infrastructure. Meanwhile, Brunel University’s Department of Chemical Engineering is contributing research support, particularly through its SeaCure CO₂ initiative, which aims to enhance carbon capture technologies.

These partnerships ensure the programme’s robust foundation in both science and market viability. Advanced feedstock tracing and provenance tracking will be integrated into the project’s operations, enhancing its credibility and potential in voluntary carbon markets, where buyers increasingly demand transparency and verified impact.

Importantly, ReGenEarth’s solution is designed for scalability. Rather than building entirely new infrastructure, the project retrofits and integrates biochar production into existing anaerobic digestion and biomass energy sites across the UK. This approach minimises capital expenditure, shortens deployment timelines, and optimises the use of already functioning clean energy facilities.

As climate change pressures mount and policy incentives for net-zero alignment increase, the launch of this green bond could not be more timely. The UK government and private sectors alike are placing increasing emphasis on nature-based solutions and climate-positive technologies. Biochar, with its scientifically proven benefits, now stands at the intersection of agriculture, energy, and carbon markets.

Investors participating in the bond not only secure a high-yield financial product but also contribute to tangible environmental outcomes—sequestering carbon, improving food security, and enabling circular economy growth. For institutions seeking Environmental, Social, and Governance (ESG)-aligned investments with measurable impacts, this offering bridges the often-cited gap between ambition and action.

As ReGenEarth’s bond programme moves forward, its success may well set a precedent for future CleanTech financing efforts—where returns are measured not just in percentage points, but in carbon tonnes sequestered, hectares of soil rejuvenated, and sustainable value created for generations to come.