Innovative Solar Power System for Substitute Natural Gas Production

Strategic Insights -

A research study published in the International Journal of Hydrogen Energy presents a novel green power-to-gas system that can produce substitute natural gas using solar energy and stored CO2. The system, which can be integrated with existing natural gas-based infrastructure, has the potential to facilitate the energy transition. The study's authors claim that the system's exergy efficiencies for SCO2 power, hydrogen, and SNG production are 51.7%, 33.3%, and 29.5%, respectively.

Key Takeaways:

  • The innovative solar power system can convert 29.4 ktons of CO2 into 12.3 ktons of SNG annually in a city with significant solar potential.
  • The system's levelized cost of energy (LCOE) for SNG is estimated at 68.9 $/MWh, with a possible range of 63-143 $/MWh.
  • Factoring in the green fuels production tax incentive, the LCOE can be reduced by 31.8 $/MWh.
  • The system's exergy efficiency for SNG production in Scottsdale is estimated at 36.9%.
  • The system's ability to produce SNG using solar energy can potentially substitute natural gas, reducing greenhouse gas emissions.
  • The research has been peer-reviewed and published in the International Journal of Hydrogen Energy.
  • The study's authors include M. Soltani, Seyed Mohammad Zolfaghari, Jatin Nathwani, Morteza Hosseinpour, and Walied Alfraidi.

Statistics:

  • 29.4 ktons of CO2 is converted into 12.3 ktons of SNG annually.
  • 51.7% exergy efficiency for SCO2 power production.
  • 33.3% exergy efficiency for hydrogen production.
  • 29.5% exergy efficiency for SNG production.
  • 36.9% annual exergy efficiency of SNG production in Scottsdale.
  • 68.9 $/MWh estimated levelized cost of energy (LCOE) for SNG.
  • 63-143 $/MWh possible range of LCOE for SNG.
  • 31.8 $/MWh reduction in LCOE when factoring in the green fuels production tax incentive.

Sources:

  • NewsRx. K.N. Toosi University of Technology Details Findings in Chemicals and Chemistry [Innovative Solar Power To Substitute Natural Gas (Sng) System Via Supercritical Carbon Dioxide (Sco2) Cycle: Energy, Exergy, and Economic (3e) Analysis]. Energy Weekly News. August 29, 2025; p 149.
  • International Journal of Hydrogen Energy. Innovative Solar Power To Substitute Natural Gas (Sng) System Via Supercritical Carbon Dioxide (Sco2) Cycle: Energy, Exergy, and Economic (3e) Analysis. 2025;158.
  • Elsevier. International Journal of Hydrogen Energy. www.journals.elsevier.com/international-journal-of-hydrogen-energy/
  • Pergamon-elsevier Science Ltd. The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.