Our
Story
History
Mission
Vision
Onnu was founded in the UK In 2022 as a consultancy advising African organisations on how to initiate and structure projects that would qualify for carbon credits. As part of this work, the Onnu team became familiar with biomass pyrolysis and it’s huge environmental and commercial potential.
Our mission is to drive the Net Zero transition by harnessing biochar technology. We will build a pyrolysis-based industry that transforms waste biomass into clean energy, removes carbon, manufactures biochar, and supports sustainable local economies through scalable, eco-friendly solutions.
By delivering commercially viable pyrolysis projects, and creating a vibrant biochar market in the UK, we have the conditions for this remarkable technology to flourish, delivering carbon removals at unprecedented scale.
Biochar
production
Biochar is made using a process called pyrolysis, and aside from the environmental benefits biochar delivers, it is a method of removing carbon dioxide from the atmosphere.
Onnu's Green Hubs in Herefordshire, UK, will deliver all the benefits of biomass pyrolysis, whilst also addressing the acute ecological challenges faced by the region from poultry litter run-off polluting the River Wye.
Building Our Own Plants
Establishing production facilities in the UK
Scaling Biochar Market
Driving large-scale biochar market growth
Onnu
Green Hubs
Maximising Environmental Impact
Onnu's Green Hub series will quickly become among the UK's largest biochar manufacturing and carbon removal facilities.
Built and sited to maximise environmental benefit while being commercially self-sustaining, our Green Hubs take low-value waste biomass and process at scale using leading continuous pyrolysis technology from Woodtek Engineering.
Each site is located close to available feedstocks, maximises use of the excess green energy produced and acts as a biochar fulfilment centre to minimise transportation distances.
The first site has completed it's assessment by Puro and can be seen here.
1,800t
Biochar produces per year
3,000 tCO2e
Atmospheric Carbon Removal per year
1 MW
Green Energy Generated
As seen in
Why
Onnu biochar?
Scale
Scale at Onnu means delivering our product in the right quantities and to the right locations. With strategically located production sites, we ensure efficient distribution and the ability to meet demand while minimising environmental impact.
Quality
Our quality is built on a foundation of consistency. With in-house processing and blending, we maintain strict quality control, so you always receive the same premium product.
Expertise
At Onnu, we partner with you to evaluate your specific needs, ensuring biochar fits and solves a measurable problem. Our expertise helps you unlock the full potential of biochar to achieve your goals.
Since 2022, Onnu has built a team of professionals focused on the scientific, operational and commercial project development to build and run our own pyrolysis plants, resulting in the roll-out of our Green Hub series.
This expertise means we are able to help other businesses looking to set-up pyrolysis operations and have advised many clients around the world on their pyrolysis journey.
Our services include:
- Project Validation
- Site Evaluation
- Plant Design
- Equipment Supply
- Carbon Credit Guidance
- Feedstock Trials
- Biochar Offtake
