Carbo Culture and the EIC Accelerator: Biochar at Scale, Later

Biochar is charcoal made by heating plant material with little oxygen, which locks much of its carbon into a stable form. Carbo Culture, founded in Helsinki in 2016, has developed a process it calls Carbolysis to make biochar from wood waste at industrial scale, selling the carbon it stores as removal credits and the heat as energy.

The European Innovation Council granted €2,163,608 towards CARBONCAPS, a €3.51 million project that ran from October 2022 to September 2024. The CORDIS report describes the design and installation of a reactor and says "development work continues at the R&D site beyond the scope of this project"; its impact section reads "We will complete this section in the final report". In October 2025 the company announced its first commercial plant, in the Netherlands. Its 2024 accounts show no revenue and a €6.7 million operating loss.

Where Carbo Culture Stands Today

ARC Middenmeer is planned for the ECW Energy greenhouse cluster in North Holland. The company says it will remove more than 20,000 tonnes of CO2 a year, supply 16 MW of renewable heat and power to greenhouses and produce 40,000 cubic metres of biochar for horticulture, with ECW Energy and the grower Royalpride as partners; the announcement gives no start date or investment figure. In March 2026 the Netherlands Enterprise Agency awarded it a €3.5 million grant, according to the company's website. Its homepage says: "We've already installed R3, our final test rig, and are currently working on C1, our first commercial facility."

The Technology: Carbon Held in Charcoal

Heating biomass in a reactor drives off gases and leaves a carbon-rich solid. The CORDIS report describes a design that "includes reactor, ignition system control/monitoring/automation systems", tests on five feedstocks from pellets to "dirty wood chips", and a standard operating procedure. In February 2026 the company welcomed an official EU methodology for certifying biochar carbon removal.

What the EIC Project Promised, and What CORDIS Shows

CARBONCAPS promised "efficient and verifiable carbon removal with ecosystem co-benefits". The report covers engineering: reactor design, feedstock tests and hardware commissioning, and the completion of three deliverables. It names the target of the first commercial facility, "20kt of annual removal", but reports no tonnes removed, no credits sold and no customer, and its section on impact was left for a final report that has not been published.

1. Reactor design and test rigDeliveredR3 commissioned in 2023.
2. Verified carbon removal at scaleNot reportedNo tonnes on CORDIS.
3. First commercial facilityAnnouncedMiddenmeer, no start date.
4. RevenueNoneNil in 2024 accounts.

What Has Happened Since the Award

In November 2023 Carbo Culture raised a $18.3 million Series A co-led by GenZero, a Singapore climate investor, and True Ventures of San Francisco, with Finland's state investor Tesi. The team grew to 28 in 2023 and fell to 18 in 2024, according to the filed accounts.

The Money

The accounts summarised by Asiakastieto show the operating loss rising from €1.7 million in 2022 to €3.2 million in 2023 and €6.7 million in 2024, with no revenue in 2024 and an equity ratio of 81%. The Series A said commercial plants of 20,000 tonnes a year would be "financed with project capital"; no project financing for Middenmeer has been announced.

Why Europe Should Care

The EU now has its own certification method for biochar carbon removal, and the EIC paid most of the cost of Carbo Culture's reactor development. Whether European public money produces European carbon removal depends on a plant that has been announced, with no project financing announced yet.

The Verdict

Carbo Culture has not been asked for comment for this article. It is based entirely on company statements, Finnish company data and EU project data, linked throughout.