UK-based carbon removal developer Onnu has grown into a carbon removal technology supplier, unveiling a proprietary pyrolysis system called CarboFlow.
This milestone was made possible by the company’s in-house team of experts that designed the CarboFlow system with a vision of making biomass projects viable, scalable, and profitable at an unprecedented cost and speed.
The debut of the CarboFlow pyrolysis systems is currently taking place in Malaysia, as Onnu embarks on an international partnership with Agrotech Bioenergy, joining forces on a project that will use agricultural residues to produce biochar, renewable energy, and carbon removal credits.
Last week, two CarboFlow units were installed at plantations in Sabah, on the island of Borneo, where they will process approximately 41,820 tonnes of wet biomass annually, producing 1,924 tonnes of biochar and generating 2,800 kW of renewable heat for plantation operations.
Through these biochar operations, the project is expected to generate 3,937 carbon credits per year, to be verified under the Puro.earth standard. The initiative has also been independently evaluated by BeZero, which assessed its overall design, implementation, and CO2 removal contribution.
Onnu’s CarboFlow systems will provide a trustworthy solution for the large volumes of agricultural waste produced by Malaysia’s plantation sector. Conventionally, this waste is left to decompose in open air, releasing CO2 emissions into the atmosphere.
With the help of CarboFlow, landowners can now transition from a linear waste disposal system to a value-generating approach that simultaneously delivers carbon removal results, soil regeneration benefits, and a reliable source of renewable energy.
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Over the next five years, Agrotech Bioenergy intends to introduce Onnu’s CarboFlow technology across multiple large-scale plantations in Malaysia, Thailand, and Indonesia, targeting an annual carbon removal volume of 360,000 tonnes and a biochar production volume of 180,000 tonnes from an estimated 900,000 tonnes of agricultural waste.
The energy generated from the CarboFlow operations will be used to power a torrefaction plant that will manufacture black pellets, lowering the coal need in power generation and cutting global CO2 emissions by a further 1.3 million tonnes of CO₂e annually.
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