Nuclear-Powered Direct Air Capture Emerges as Scalable Solution for Climate Change

Strategic Insights -

New research published in the International Journal of Greenhouse Gas Control proposes that direct air capture facilities be powered by dedicated large-scale nuclear power plants, potentially offering a cost-effective solution for removing CO2 from the atmosphere.

Direct air capture (DAC) technology has gained attention as a promising approach for mitigating global warming, but its high energy demands have been a significant challenge. The study suggests that nuclear power plants, specifically designed to deliver the optimal heat/electricity ratio, can provide the necessary energy to power DAC units while minimizing costs. The authors estimate that the levelized cost of removed CO2 could be as low as $101.6 per ton by 2050, making it an attractive option for climate change mitigation efforts. However, further research is needed to address non-economic challenges and ensure the long-term potential of this technology.

Key Takeaways:

  • Direct air capture technology has higher energy demands than conventional CO2 capture methods.
  • Nuclear power plants can provide cheap input energy essential for DAC facilities.
  • A dedicated nuclear power plant designed to deliver optimal heat/electricity ratio can power a DAC unit as a condenser in the Rankine power cycle.
  • The levelized cost of removed CO2 from DAC facilities powered by conventional nuclear reactor technology is estimated to be $101.6 per ton by 2050.
  • An advanced configuration employing high-temperature nuclear reactor technology can increase the levelized cost of removed CO2 to $108.0 per ton by 2050.
  • The study identified several non-economic challenges that need further research for the long-term potential of nuclear-DAC technology.

Statistics:

  • Estimated levelized cost of removed CO2 from DAC facilities powered by conventional nuclear reactor technology: $101.6 per ton (median) and $71.3-$153.9 per ton (90% confidence interval) by 2050.
  • Estimated levelized cost of removed CO2 from DAC facilities powered by advanced high-temperature nuclear reactor technology: $108.0 per ton (median) and $68.8-$176.1 per ton (90% confidence interval) by 2050.
  • Estimated CO2 removal costs are attractive compared to projected CO2 prices in climate change mitigation scenarios targeting substantial emissions reductions by mid-century.

Sources:

  • The Prospects of Massively Scalable Nuclear-powered Direct Air Capture As a Climate Solution. International Journal of Greenhouse Gas Control, 2025;144.
  • International Journal of Greenhouse Gas Control, www.journals.elsevier.com/international-journal-of-greenhouse-gas-control/ (Elsevier Sci Ltd, 125 London Wall, London, England).
  • NewsRx. New Findings on Climate Change Described by Investigators at Foundation for Scientific and Industrial Research (The Prospects of Massively Scalable Nuclear-powered Direct Air Capture As a Climate Solution). Global Warming Focus. June 9, 2025; p 2109.