Climeworks: Scaling Direct Air Capture from Lab to Gigatonne
The Swiss carbon removal pioneer faces the ultimate deep-tech challenge
Overview
Climeworks captures CO2 directly from ambient air and stores it permanently underground. The Swiss company operates the world's largest DAC facility in Iceland and is building DAC2, a ten-times-larger successor. With over €800M raised, it is the most capitalised carbon removal company globally.
Business Model
Climeworks sells permanent carbon removal as a service. Corporate buyers — Microsoft, Stripe, Shopify — purchase credits at €600-1,000 per tonne. The path to viability depends on reducing costs to €200-300 through engineering improvements and scale. DAC2 aims to capture 36,000 tonnes annually.
Competitive Dynamics
Competitors include Carbon Engineering (acquired by Occidental) and startups like Heirloom. EU policy is a tailwind — the Carbon Border Adjustment Mechanism could create regulatory demand for permanent carbon removal.
What to Watch
Key milestones include DAC2 construction timeline, cost per tonne trajectory, and EU CDR certification. Climeworks has approximately five years to demonstrate a credible cost reduction path.
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