UK Office (HQ)
Address
Onnu Ltd, York House, York Road, Maidenhead, SL6 1SF,
United Kingdom
Our Vision
We see biomass pyrolysis and biochar as the most accessible and scalable of all engineered carbon removal processes, thanks to its relative simplicity, and ability to support profitable business models.
To ensure this sector thrives, and can have a game-changing impact in the fight against climate change, Onnu seeks to remove barriers to scaling, both for our own business and others, to expand and grow the market.
By 2030 we will have played our part building a world where no biomass is wasted, pyrolysis routinely generates localised green energy, biochar use is widespread and biochar CDR is removing mega tonnes of CO2 from the atmosphere.
Our targets
Our CarboFlow technology delivers clean energy, while capturing carbon, manufacturing biochar and investing in local circular economies.
By 2030, we aim to have facilitated the annual delivery of:
80 MW
of clean energy generated
80k t
biochar
manufactured
200k tCO2e
of carbon
removed
Our Story
Beginnings - Project developers
Onnu was founded in 2022 with the clear goal of commercializing the biomass pyrolysis industry. The technology and the climate impacts were proven, but the sector was dominated by smaller-scale research and grant supported projects which were not profitable or scaling.
Onnu's original focus was on project development. We gradually grew a team of experienced engineers and sustainability consultants to advise on pyrolysis projects, helping to bring plants online.
Alongside Onnu, we launched Onnu Biochar to cater for landscapers, growers and gardeners' biochar needs in the UK. Onnu Bioflow soon followed to provide renewable commodities on an industrial scale.
Today - Engineering & Technology
What we encountered as project developers were manufacturers with long lead times and machines with a 7+ year payback.
We had a long list of potential clients wanting to put their biomass to use in way that was good for the planet an their net-zero ambitions, but the slow manufacturing process and long payback time meant it wasn't a viable solution.
It was through these frustrations that we decided to pivot and switch our focus to engineering and manufacturing our own machine, with three main aims; build a pyrolysis machine that was affordable, versatile, and had a capacity that ultimately made it a viable option for those looking to put their biomass to use.
Our Design and Manufacture
Onnu is committed to excellence in our manufacturing and supply chain, working with the best partners and highest quality components to ensure that our equipment is high-performing, reliable and value for money.
Lead Designer - Seb Burn
Seb is a veteran of biomass pyrolysis and has worked with multiple biochar production technologies for 15 years, leading the implementation of various equipment in North and South America, Europe and Asia. Seb has taken the practical experience of both build and operation to produce a design for CarboFlow that maximizes performance and ease of operation, while ensuring commercial viability of client projects.
Global Reach
Working in close proximity to the locations of our first CarboFlow installations, the core of our manufacturing is in Malaysia, where we work with world-class manufacturing companies with specialisms in the various components we need.
We have designed CarboFlow to be flexible, allowing us to distribute work to partners in different regions of the world as our roll-outs require, ensuring quality, minimizing transportation and supporting local economies.
Quality Assured
Our CarboFlow units are made from high-grade steel, and utilize best-in-class components to ensure reliability and longevity. Where components are expected to require replacement over time, they are inexpensive and accessible to minimize downtime and disruption.
CarboFlow is fully CE compliant, ensuring adherence with the latest EU health, safety and environmental protection regulations. Backed by the Declaration of Conformity and the official CE marking, it delivers proven reliability of our machinery and absolute confidence for customers.
Sustainability
Each CarboFlow unit is manufactured from responsibly sourced steel and components, with a focus on longevity and recyclability.
We prioritize local fabrication, efficient transport, and environmentally responsible suppliers to keep the machine’s embodied carbon as low as possible.
Our Partners
We believe in the power of collaboration and knowledge sharing. We're proud to partner with the following businesses:
We're hiring
Our locations
Cape Town
Address
21 Dreyer Street, Claremont,
Cape Town 7780,
South Africa
Phone
Malaysia Office
Address
A-29-8, Menara UOA Bangsar, Jalan Bangsar Utama 1, Bangsar 59000, Kuala Lumpur
Latest insights
Onnu Bioflow Live and Manufacturing Biochar
We are delighted to announce that Onnu Bioflow is live and manufacturing biochar and black pellets at our Ipoh site in Malaysia!
Onnu Bioflow Live and Manufacturing Biochar
Onnu Bioflow open for business!
Onnu have been in attendance at the 5th Oil Palm Biomass Conference over the past two days, as we unveiled our entrance into the Asian market with the launch of Onnu Bioflow.
Onnu Bioflow open for business!
Planning application withdrawn for our Green Hub in Herefordshire
We have made the decision to withdraw our planning application for our Green Hub project in Herefordshire, in order to focus on more beneficial projects.
Planning application withdrawn for our Green Hub in Herefordshire