Key Performance Metrics

Gigaton CO2's technologies demonstrate exceptional performance across key parameters, making them viable solutions for practical decarbonization at scale.

Key Performance Metrics
System Size
  • Direct Water Capture: Footprint of approximately 0.01 km² (10,000 m²) for a 1 million tonne/year system, with potential for reduction to 0.001 km² (1,000 m²) in optimized applications.
  • Fossil Fuel Capture: 65% smaller footprint than equivalent amine-based systems, enabling installation in space-constrained environments like vessel engine rooms or offshore platforms.
     
Capital Expenditure (CAPEX)
  • Direct Water Capture: Estimated below $5 per tonne generated over a 20-year field life for a typical 1 million tonne/year system.
  • Fossil Fuel Capture: Modular design allows customers to select appropriate capacity for their needs, with scaled manufacturing reducing unit costs.
Operational Expenditure (OPEX)
  • Direct Water Capture: Initial cost range of $200 – 500 per tonne CO2, with pathway to below $100 per tonne and potential for $25 – 50 per tonne in optimized systems.
  • Fossil Fuel Capture: Energy consumption of <200 kWh per tonne CO2, reducing operational costs by 60-70% compared to conventional amine systems (400 – 1200 kWh/tonne).
     
Capture Efficiency
  • Direct Water Capture: Typical yield of 100 tonnes CO2 per billion liters of water processed, with enhanced rates for high-carbonate water sources.
  • Fossil Fuel Capture: 85 – 95% capture efficiency across variable operating conditions, producing 95 – 99% pure CO2 output suitable for utilization or storage.
     
Environmental Impact
  • Carbon Footprint: Combined CAPEX and OPEX footprint of approximately 10 – 15% of capture rates, with pathway to below 5% through system optimization.
  • Land Use: Minimal land requirements, with offshore and subsea options having negligible surface footprint.
  • Water Impact: Direct Water Capture improves ocean pH, mitigating acidification while removing CO2.
  • Material Efficiency: Designs minimize concrete and steel requirements, reducing embodied carbon.
     
Power Requirements
  • Direct Water Capture: Approximately £20 per tonne CO2 for water movement energy costs, with potential for integration with existing water flows to reduce this further.
  • Fossil Fuel Capture: <200 kWh per tonne CO2, maintaining vessel efficiency or industrial operations without prohibitive energy penalties.
Deployment Flexibility

All three technologies offer exceptional deployment flexibility:

  • Geographical Range: From tropical to arctic environments
  • Scale Options: From small (thousands of tonnes) to massive (millions of tonnes)
  • Integration Capabilities: Compatible with existing industrial, maritime, and energy infrastructure
  • Power Sources: Operable with grid electricity, renewables, waste heat, or natural forces