Combined heat and power from hydrothermal geothermal resources in Germany: An assessment of the potential
Eyerer S, Schifflechner C, Hofbauer S, Bauer W, Wieland C, Spliethoff H (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 120
Article Number: 109661
DOI: 10.1016/j.rser.2019.109661
Abstract
This study investigates the potential of hydrothermal geothermal energy for combined heat and power (CHP) generation in Germany. Based on the theoretical potential of hydrothermal heat in place, the technical and economic potential is determined with a review and an analysis of existing geothermal plants. To this end, the thermodynamic and economic performance of operating power plants is analyzed and models for the efficiency and the production costs are developed. Based on this analysis, a technical potential of 12.2PWh el and 16.7PWh th as well as an economic potential of 9.1PWhel and 12.5PWhth is determined. In order to derive an annual contribution from the economic potential, the regeneration of the resource is taken into account. Considering a sustainable exploitation rate, an annual economic potential of 9.1TWhel/a and 12.5TWhth/a is derived. This corresponds to a share of 1.51% of the gross electricity demand and a share of 1.48% of the demand for space heating and domestic hot water. This analysis provides a profound review about the existing geothermal power plants and their thermodynamic and economic performance. Furthermore, the assessment of the geothermal potential in Germany is necessary for political decision making, particular with a view towards future adjustments of the feed-in tariffs defined by the Renewable Energy Act.
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APA:
Eyerer, S., Schifflechner, C., Hofbauer, S., Bauer, W., Wieland, C., & Spliethoff, H. (2020). Combined heat and power from hydrothermal geothermal resources in Germany: An assessment of the potential. Renewable & Sustainable Energy Reviews, 120. https://doi.org/10.1016/j.rser.2019.109661
MLA:
Eyerer, S., et al. "Combined heat and power from hydrothermal geothermal resources in Germany: An assessment of the potential." Renewable & Sustainable Energy Reviews 120 (2020).
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