Assessing Global Long-Term EROI of Gas: A Net-Energy Perspective on the Energy Transition
| Autor: | Louis Delannoy, Pierre-Yves Longaretti, David. J. Murphy, Emmanuel Prados |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Energies, Vol 14, Iss 16, p 5112 (2021) |
| Druh dokumentu: | article |
| ISSN: | 14165112 1996-1073 |
| DOI: | 10.3390/en14165112 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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