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Article

Assessing Global Long-Term EROI of Gas: A Net-Energy Perspective on the Energy Transition

1
University Grenoble Alpes, CNRS, Inria, LJK, STEEP, 38000 Grenoble, France
2
Petroleum Analysis Centre, Staball Hill, Ballydehob, West Cork, Ireland
3
University Grenoble Alpes, CNRS, INSU, IPAG, CS 40700, 38052 Grenoble, France
4
Department of Environmental Studies, St. Lawrence University, 205 Memorial Hall, 2 Romoda Dr., Canton, NY 13617, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Susan Krumdieck
Energies 2021, 14(16), 5112; https://doi.org/10.3390/en14165112
Received: 30 July 2021 / Revised: 13 August 2021 / Accepted: 16 August 2021 / Published: 19 August 2021
(This article belongs to the Special Issue Energy Transition Engineering)
Natural gas is expected to play an important role in the coming low-carbon energy transition. However, conventional gas resources are gradually being replaced by unconventional ones and a question remains: to what extent is net-energy production impacted by the use of lower-quality energy sources? This aspect of the energy transition was only partially explored in previous discussions. To fill this gap, this paper incorporates standard energy-return-on-investment (EROI) estimates and dynamic functions into the GlobalShift bottom-up model at a global level. We find that the energy necessary to produce gas (including direct and indirect energy and material costs) corresponds to 6.7% of the gross energy produced at present, and is growing at an exponential rate: by 2050, it will reach 23.7%. Our results highlight the necessity of viewing the energy transition through the net-energy prism and call for a greater number of EROI studies. View Full-Text
Keywords: gas; net-energy; EROI; energy transition gas; net-energy; EROI; energy transition
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MDPI and ACS Style

Delannoy, L.; Longaretti, P.-Y.; Murphy, D.J.; Prados, E. Assessing Global Long-Term EROI of Gas: A Net-Energy Perspective on the Energy Transition. Energies 2021, 14, 5112. https://doi.org/10.3390/en14165112

AMA Style

Delannoy L, Longaretti P-Y, Murphy DJ, Prados E. Assessing Global Long-Term EROI of Gas: A Net-Energy Perspective on the Energy Transition. Energies. 2021; 14(16):5112. https://doi.org/10.3390/en14165112

Chicago/Turabian Style

Delannoy, Louis, Pierre-Yves Longaretti, David. J. Murphy, and Emmanuel Prados. 2021. "Assessing Global Long-Term EROI of Gas: A Net-Energy Perspective on the Energy Transition" Energies 14, no. 16: 5112. https://doi.org/10.3390/en14165112

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