Integration of reversible solid oxide cells with methane synthesis (ReSOC-MS) in grid stabilization: A dynamic investigation

Bin Chen, Yashar S. Hajimolana*, Vikrant Venkataraman, Meng Ni, P. V. Aravind

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    8 Citations (Scopus)
    2 Downloads (Pure)

    Abstract

    The power to gas concept is promising for the next generation of electrochemical energy storage and grid stabilization technologies. The fuel produced from electricity-driven fuel production can be an efficient energy carrier for excessive grid power. Here, a reversible solid oxide cell(s) system integrated with methane synthesis (ReSOC-MS) is proposed for the grid stabilization application at Mega Watts class. CH4 can be synthesized at grid surplus conditions and can be a transportation friendly energy carrier. A control strategy is proposed for this combined system, based on the grid state and H2 tank state of the system for the normal solid oxide fuel cell (SOFC) mode and solid oxide electrolysis cell (SOEC) mode. Simulation results of these two operational modes demonstrate that the ReSOC-MS can achieve 85.34% power to gas efficiency in SOEC mode and 46.95% gas to power efficiency in SOFC mode. Dynamic simulations of stepping grid state for 5000 s operation show that the power to gas efficiency can be higher than 70%, thereby successfully demonstrating the capability of grid-balancing and methane production.

    Original languageEnglish
    Pages (from-to)558-567
    Number of pages10
    JournalApplied energy
    Volume250
    Early online date10 May 2019
    DOIs
    Publication statusPublished - 15 Sep 2019

    Keywords

    • Dynamic simulation
    • Grid stabilization
    • Hydrogen storage
    • Methane synthesis
    • Power control strategy
    • Power-to-X
    • Reversible solid oxide cell

    Fingerprint Dive into the research topics of 'Integration of reversible solid oxide cells with methane synthesis (ReSOC-MS) in grid stabilization: A dynamic investigation'. Together they form a unique fingerprint.

    Cite this