Socio-Economic Impact Assessment of Hydrogen Injection in the Natural Gas Network

Spyros Kyrimis, Petros Dimas, Dimitrios Stamopoulos and Aggelos Tsakanikas ()
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Spyros Kyrimis: Laboratory of Industrial and Energy Economics, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece
Petros Dimas: Laboratory of Industrial and Energy Economics, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece
Dimitrios Stamopoulos: Laboratory of Industrial and Energy Economics, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece
Aggelos Tsakanikas: Laboratory of Industrial and Energy Economics, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece

Energies, 2025, vol. 18, issue 3, 1-23

Abstract: This study explores the feasibility parameters of a potential investment plan for injecting “green” hydrogen into the existing natural gas supply network in Greece. To this end, a preliminary profitability optimization analysis was conducted through key performance indicators such as the cost of hydrogen and the socio-environmental benefit of carbon savings, followed by break-even and sensitivity analyses. The identification of the major impact drivers of the assessment was based on the examination of a set of operational scenarios of varying hydrogen and natural gas flow rates. The results show that high natural gas capacities with a 5% hydrogen content by volume are the optimal case in terms of socio-economic viability, but the overall profitability is too sensitive to hydrogen pricing, rendering it unfeasible without additional motives, measures and pricing strategies. The results feed into the main challenge of implementing commercial “green” hydrogen infrastructures in the market in a sustainable and feasible manner.

Keywords: hydrogen injection; green hydrogen; climate change; energy market; feasibility study; socio-economic impact (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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