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@PHDTHESIS{Benitez:1054352,
author = {Benitez, Alicia},
title = {{A}ssessing the {E}nvironmental {I}mplications of
{O}ffshore {W}ind {E}nergy {A}dvancements on the {F}uture
{G}erman {E}lectricity {S}ector},
volume = {693},
school = {Duisburg-Essen},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2026-01794},
isbn = {978-3-95806-885-8},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {xi, 176},
year = {2026},
note = {Dissertation, Duisburg-Essen, 2025},
abstract = {Climate change mitigation requires the rapid
defossilisation of the German electricity sector. While
energy system models are extensively used to evaluate
climate change mitigation strategies, they generally
consider environmental aspects in a limited manner, often
focusing on direct operational emissions. To overcome this
limitation, this thesis aims to investigate how the
environmental impacts of energy systems can be evaluated
through an integrated approach that combines Life Cycle
Assessment into an energy system model. Integrating both
methodologies enables a more comprehensive evaluation by
including upstream and downstream environmental impacts and
indicators related to ecosystems, human health and
resources. However, the integration is challenging due to
data inconsistencies. A core contribution of this thesis is
developing a systematic process to compile and automate
input parameters to ensure a consistent collection of data
relevant to both methodologies. The integration approach
enables the generation of consistent scenarios that are
tested within the model. The modelled use case is a
simplified representation of the European electricity system
and is built on Calliope, an open-source Python-based
framework for energy system modelling. This thesis conducts
a more detailed analysis of Germany within the model,
focusing on offshore wind due to its strategic role in the
country's renewable energy expansion and the significant
technological advancements expected by 2030 and 2050, which
existing integration approaches fail to capture. For the
first time, this thesis develops and tests an integrated
approach that systematically harmonises prospective life
cycle, economic, and technical data with the technological,
geographical, and temporal scope of both Life Cycle
Assessment and the energy system modelling. This approach
enables the evaluation of technologies, particularly
offshore wind, within a broader electricity system while
resolving methodological inconsistencies. The primary
scientific contribution of this thesis lies in the
methodological innovation that allows for the systematic
alignment of assumptions between environmental and economic
indicators and the assessment of trade-offs between cost and
environmental impacts. For instance, the results show that
while offshore can reduce the impact on greenhouse gas
emissions in 2030 by up to 80 $\%$ compared to current
levels, the associated investment, however, is up to 40 $\%$
higher than other technological alternatives. In addition,
offshore wind can increase impacts on ecotoxicity, and water
use due to its used materials and manufacturing processes.
This integrated modelling approach facilitates not only the
assessment of trade-offs between cost and environmental
indicators, but also the provision of deeper insights into
the implications of future technologies and supports more
informed decision-making for a sustainable energy
transition.},
cin = {ICE-2},
cid = {I:(DE-Juel1)ICE-2-20101013},
pnm = {1111 - Effective System Transformation Pathways (POF4-111)
/ 1112 - Societally Feasible Transformation Pathways
(POF4-111)},
pid = {G:(DE-HGF)POF4-1111 / G:(DE-HGF)POF4-1112},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
doi = {10.34734/FZJ-2026-01794},
url = {https://juser.fz-juelich.de/record/1054352},
}