Calculation and analysis of efficiencies and annual performances of Power-to-Gas systems

Elimar Frank, Jachin Gorre, Fabian Ruoss and Markus J. Friedl

Applied Energy, 2018, vol. 218, issue C, 217-231

Abstract: This paper describes a generic and systematic method to calculate the efficiency and the annual performance for Power-to-Gas (PtG) systems. This approach gives the basis to analytically compare different PtG systems using different technologies under different boundary conditions. To have a comparable basis for efficiency calculations, a structured break down of the PtG system is done. Until now, there has not been a universal approach for efficiency calculations. This has resulted in a wide variety of efficiency calculations used in feasibility studies and for business-case calculations. For this, the PtG system is divided in two sub-systems: the electrolysis and the methanation. Each of the two sub-systems consists of several subsystem boundary levels. Staring from the main unit, i.e. the electrolysis stack and/or methanation reactor, further units that are required to operate complete PtG system are considered with their respective subsystem boundary conditions.

Keywords: Power-to-Gas; Electrolysis; Methanation; Efficiency; Annual performance; System boundary (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (19)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:218:y:2018:i:c:p:217-231

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DOI: 10.1016/j.apenergy.2018.02.105

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