Head Office
Address
York House, York Road,
Maidenhead, SL6 1SF,
United Kingdom
Our vision
We aim to realise the potential of biochar to facilitate the transition to a Net Zero economy. We will achieve this by creating a pyrolysis-based Greentech industry that ensures waste biomass is processed in ways that are affordable, readily available – and acceptable to the public and the regulatory authorities.
The first significant milestone in the achievement of that ambition will be to build 100 pyrolysis-based energy hubs over the next decade. As an interim step, we have set ourselves the following targets by 2025. By ensuring the sustainable management of waste biomass, we will be helping to deliver on what the world needs most - substantial and scalable carbon removal.
Our targets
We deliver clean energy, while capturing carbon, manufacturing biochar and investing in local circular economies.
By 2025 we aim to be annually delivering:
10MW
of clean, affordable
energy generated
25kt
of waste
diverted
7kt
biochar
manufactured
10kt CO2
of carbon
removed
Our Story
Our story
Onnu was founded in the UK In 2021 as a consultancy advising African organisations on how to initiate and structure projects that would qualify for carbon credits. As part of this work, members of the Onnu team spent time onsite in Southern Africa.
Onnu conducted an emissions reduction report for Namid Mills – Namibia’s largest corporation – which identified waste biomass as an area of concern. Exploring the solutions to this problem led to a detailed examination of pyrolysis. This was the point when the Onnu team began to see the potential of biochar – as both a carbon capture technology and a key component of sustainable farming.
Green energy
Meanwhile, the UK Environment Agency had published a new guidance on land-spreading, which effectively outlawed the practice. This presented a huge problem for UK agriculture for which biochar was the most viable, sustainable solution.
Recognising the value of their expertise in pyrolysis and biochar, the Onnu team then relocated back to the UK and the company began to take its current form – advising on and building pyrolysis-based green energy hubs in a variety of industry sectors.
Our team
Sarah Copland
Finance Manager
Paul Stewart
Land Acquisition Specialist
Iain Halpin
Head of Communications
We're hiring
Our locations
Cape Town
Address
21 Dreyer Street, Claremont,
Cape Town 7780,
South Africa
Phone
Engineering
Address
Caebardd, Guilsfield,
Welshpool, Powys,
SY21 9DJ
Malaysia
Address
A-29-8, Menara UOA Bangsar, Jalan Bangsar Utama 1, Bangsar 59000, Kuala Lumpur
Latest insights
Malaysia Pyrolysis Project Launch
Onnu Projects and Biocarbon Technologies start work on pioneering pyrolysis plant in Malaysia
Malaysia Pyrolysis Project Launch
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Characteristics of good feedstocks for pyrolysis
Biomass pyrolysis delivers remarkable environmental benefits in terms of carbon sequestration, green energy and of course the biochar it produces. However, as with most things in life, what you get out depends on what you put in, and the choice of feedstock is crucial to ensure these benefits are delivered.
Characteristics of good feedstocks for pyrolysis
Onnu Biochar open for business!
Announcing the launch of our biochar marketplace, Onnu Biochar for trade and commercial sales of our growing biochar supply.
Onnu Biochar open for business!