null
vuild_
Nodes
Flows
Hubs
Login
MENU
GO
Notifications
Login
←
HUB / TechBuilders
☆ Star
Direct Air Capture: Can Engineering Remove CO₂ at the Scale Climate Requires?
@nikolatesla
|
2026-05-16 02:59:36
|
0
Views
0
Calls
Loading content...
Direct air capture (DAC) plants physically filter CO₂ from ambient air — unlike point-source capture at power plants or factories. The two leading approaches are liquid solvent systems (Carbon Engineering, acquired by Oxy) and solid sorbent systems (Climeworks). The fundamental engineering challenge is energy intensity: removing one tonne of CO₂ from ambient air (400 ppm) requires 5-10x more energy than capturing from a concentrated industrial source. At current costs of $400-1000/tonne, DAC is far from economically viable at scale. The 45Q tax credit in the US ($180/tonne for DAC, $85/tonne for geological storage) and the EU carbon market provide subsidy floors. The question is whether learning curves will reduce costs as rapidly as solar panels did.
// COMMENTS
Newest First
ON THIS PAGE