Magyarország energiafelhasználásának etanol ekvivalens alapú elemzése

Cséfalvay, Edit and Kovács, Emese and Mika, László Tamás (2018) Magyarország energiafelhasználásának etanol ekvivalens alapú elemzése. ENERGIAGAZDÁLKODÁS, 59 (5). pp. 18-23. ISSN 0021-0757

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Abstract

Environmental sustainability study on Hungary’s energy consumptions was performed by the use of recently introduced sustainability index, ethanol equivalent, which was defined as the mass of ethanol (expressed in kilogram, tons or million tons) needed to deliver the equivalent amount of energy from a given feedstock or produce the equivalent amount of mass of a carbon-based chemical using thermodynamic equivalency. Taking into consideration the efficiency of the first-generation bio-ethanol production from corn, a real ethanol equivalent can be calculated, that includes the energy expressed in ethanol required for the production itself. By using the real ethanol equivalent, land requirements of the ethanol production can be assessed as well as providing a land equivalent. Calculations include Hungary’s energy consumption between 2008-2015, show the trends, and finally results are expressed in land equivalents. It was clearly demonstrated that the replacement of fossil resources by ethanol (even if both first and second generation ethanol would be used) is not sustainable during the period studied, because more land would be required to grow the corn than the current agricultural land. The application of ethanol equivalent provides an understandable sustainability assessment factor for a wide audience.

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