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Historically, Direct Air Capture (DAC) has been held back by high energy demand, operational complexity, and unstable performance across climates. Yet for a growing number of industries, an independent, fossil-free CO₂ supply is now a fundamental requirement to ensure operational continuity, meet decarbonization targets, and secure a lasting cost advantage as fossil-based CO₂ sources grow more volatile, scarce, and expensive.
Skytree has engineered a Direct Air Capture system, Skytree Stratus, that delivers superior performance on the metrics that matter most to CO₂ supply. Validated by over two years of operational data, Skytree Stratus is our first fully serialized, commercial DAC system: an industrial reality, not a future promise. By moving away from the complexities of bespoke engineering, we have developed a system that treats CO₂ as a localized utility—predictable, standardized, and designed to perform in the real world.
At the heart of this advancement is a proprietary dual-chamber TVSA (Temperature Vacuum Swing Adsorption) process. By physically separating the adsorption and desorption phases, Skytree Stratus achieves industry-leading energy efficiency. This architectural shift, combined with a modular approach to hardware, allows for a more capital-efficient deployment, providing a repeatable, high-performance solution for on-site CO₂ generation at any scale.
Energy efficiency by design: In the world of DAC, energy consumption is the main lever for cost of capture. Skytree Stratus uses a patented moving-bed TVSA architecture that radically solves the thermal mass problem found in fixed-bed systems. By physically separating the adsorption and desorption zones, and integrating low-grade thermal energy like geothermal or waste heat, the system brings electricity requirements down to as little as 1.0 MWh per tonne.
Reliability in any climate: When running industrial processes, feedstock needs to be predictable, regardless of the weather or the season. To ensure a stable CO₂ flow, Skytree Stratus uses AI-driven dynamic process control across four dedicated climate configurations: arid, tropical, polar, and temperate. This allows the system to adapt to local conditions in real-time, delivering a consistent supply whether your site is in a desert or a coastal region.
Asset durability and lifecycle management: We’ve focused on engineering out the mechanical stressors that usually drive DAC downtime. The moving-bed design of Skytree Stratus stops the constant thermal expansion and contraction that wears out machine structures and protects the sorbent from oxidative stress. This pushes the sorbent life out to 4–5 years, which significantly lowers your total cost of ownership (TCO).
Modular scalability and CAPEX efficiency: Standardization is the only way to industrialize carbon capture. By using serialized modules, Skytree Stratus offers a flexible capacity range from single units of 900 tonne per year to high-capacity arrays of up to 7,200 tonne per year. This modularity cuts lead times and allows you to deploy capital in phases, so your capture capacity grows in direct alignment with the financial model.
Strategic de-risking and industrial utility: Large-scale infrastructure usually comes with high risk premiums and the fear of technical obsolescence. Skytree Stratus eliminates these barriers with an in-field upgrade path and integrated liquefaction capabilities. You get ≥99.9% food-grade liquid CO₂ on-site, and features like one-day sorbent swaps mean your infrastructure stays current with the latest material science without needing a total system overhaul.
The commitment to operational excellence is backed by the numbers that matter to your project’s bankability:
Energy efficiency: 1MWh of electricity per tonne of CO₂ with full thermal integration.
Process resilience: Consistent CO₂ output within ±5% seasonal variance.
Sorbent longevity: Lifespan extended to 4–5 years.
Capital utilization: 15–25% reduction in required CAPEX through intelligent utilization.
Skytree Stratus functions as a sophisticated utility built for the circular carbon economy. By combining energy efficiency, climatic resilience, and modular scalability, the platform provides a bankable pathway for resilient on-site CO₂ infrastructure.