The Hellisheidi geothermal power plant
Climeworks fires up Mammoth DAC plant
Launch of project powered by geothermal energy in Iceland marks step forward in push to scale up expensive direct-air-capture technology
Switzerland-based carbon management technology firm Climeworks has started up its Mammoth direct air capture (DAC) and storage project in southwest Iceland, which it claims to be the largest plant of its type in the world. At capacity, the project is expected to filter and capture up to 36,000t/yr of CO₂ from the atmosphere. Twelve of its total 72 collector containers have so far been installed, with the rest scheduled to be fitted by the end of 2024. Captured CO₂ will be transported into permanent underground storage by Iceland-based firm Carbfix. Once underground, the CO₂ reacts with basaltic rock through a natural process, which transforms into stone. Climeworks said it verifies and certi
Also in this section
12 March 2026
Role of world’s largest carbon cap-and-trade market under scrutiny as war in Iran threatens to drive EU energy costs to unsustainable levels
10 March 2026
Europe urgently needs to bring more projects to FID, as CCS investors warn they might divert capital to faster-growing regions
9 January 2026
A shift in perspective is needed on the carbon challenge, the success of which will determine the speed and extent of emissions cuts and how industries adapt to the new environment
2 January 2026
This year may be a defining one for carbon capture, utilisation and storage in the US, despite the institutional uncertainty
