ReGenEarth, originally incubated by Earth Capital, has partnered with RER to launch a £100 million Green Bond Programme aimed at scaling integrated biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More technologies across the UK. The capital will support the deployment of systems that incorporate biochar production into anaerobic digestion (AD) and biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More facilities, with a strong emphasis on feedstockFeedstock refers to the raw organic material used to produce biochar. This can include a wide range of materials, such as wood chips, agricultural residues, and animal manure. More traceability to support premium pricing in the voluntary carbon credit market.

The bond, issued by RER Capital PLC—a financing vehicle dedicated to circular economy and CleanTech ventures—will be secured against existing AD assets and lent to a ReGenEarth subsidiary. Structured in line with ICMA Green Bond Principles, the three-year bond offers a 12.5% annual coupon and matures in 2030.

An Investor Day was held on June 10 at the Institute of Engineering & Technology in London, featuring partners BeZero and Onnu, and Brunel University’s Chemical Engineering Department. The event covered topics including carbon markets, carbon capture, and Brunel’s SeaCure CO₂ project.

This programme responds to investor demand for alternatives to solar and wind projects, which have seen yield compression due to sector maturity. By focusing on biochar and resource-efficient infrastructure, the bond aligns financial returns with environmental performance.

ReGenEarth is working closely with Onnu on engineering and deployment, using pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More to turn organic waste into stable carbon products. These initiatives aim to drive both decarbonization and regenerative agriculture, positioning biochar as a key technology in the UK’s climate and circular economy strategies.