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:
160k tCO2e
of carbon
removed
80k t
biochar
manufactured
200 MW
of clean energy generated
across 29
operational pyrolysis sites
Our story
Our design & 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 in the industry, with multiple biochar production technologies, for 15+years. He has lead 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.
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.
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
Our partners
We believe in the power of collaboration and knowledge sharing. We're proud to partner with the following businesses:
Latest insights
How we built CarboFlow’s intuitive HMI
Modern pyrolysis machines are powerful and often very complex pieces of engineering. Whilst we understand our machines down to the last bolt, how do we make sure an operator understands the controls, flows and intricacies? This falls on the Human Machine Interface (HMI) which is, in very simple terms, a display screen used to control the machine.
How we built CarboFlow’s intuitive HMI
How CarboFlow uses pressure to maximize energy capture
One of the features that truly sets CarboFlow apart, is how it captures and reuses heat - converting it into steam for green energy production. We explore how this all works...
How CarboFlow uses pressure to maximize energy capture
How to choose a carbon registry
Different carbon registries have differing methodologies for project developers to adhere to, with clear instructions on what type of information needs to be provided for a project to be approved and carbon credits to be issued. But which should you choose?
How to choose a carbon registry