Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.renene.2021.09.094
Lizenz creative commons licence
Titel (primär) Empirical greenhouse gas assessment for flexible bioenergy in interaction with the German power sector
Autor Dotzauer, M.; Oehmichen, K.; Thrän, D.; Weber, C.
Quelle Renewable Energy
Erscheinungsjahr 2022
Band/Volume 181
Seite von 1100
Seite bis 1109
Sprache englisch
Topic T5 Future Landscapes
Keywords Greenhouse gas emissions; Energy system; German power market; Flexible bioenergy generation; Biogas plants; Empirical assessment
Abstract Wind and solar power are already the major pillars of renewable power generation in Germany and will become even more dominant in the future. At the same time, dispatchable power plants phasing out. The expected increase of fluctuations in the residual load could be partial balanced by flexible bioenergy. However, there is currently no assessment approach for quantifying the systemic GHG impacts for flexible bioenergy generation.
Based on the merit order concept, we develop an empirical approach to systemically assess the GHG emissions impact for electricity generated by flexible bioenergy plants. We estimate price response functions using the historical data of market prices and feed-in time series for the different forms of dispatchable non-renewable dispatchable generation (NRDG). By calculating the expected NRDG based on these functions, and using specific emission factors, we are able to estimate the net impact for a switch from invariable to flexible bioenergy generation.
The calculated net impact ranges from −20 to −36 g CO2eq per kWh, which is equivalent to a benefit of −10% to −18% respectively for an average carbon footprint of 200 g CO2eq per kWh. The calculation tools are written in Python and freely accessible on ZENODO and GitLab.
dauerhafte UFZ-Verlinkung
Dotzauer, M., Oehmichen, K., Thrän, D., Weber, C. (2022):
Empirical greenhouse gas assessment for flexible bioenergy in interaction with the German power sector
Renew. Energy 181 , 1100 - 1109 10.1016/j.renene.2021.09.094