TY  - GEN
A1  - Tröndle, Tim
A1  - Lilliestam, Johan
A1  - Marelli, Stefano
A1  - Pfenninger, Stefan
T1  - Trade-offs between geographic scale, cost, and infrastructure requirements for fully renewable electricity in Europe
T2  - Postprints der Universität Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe
N2  - The European potential for renewable electricity is sufficient to enable fully renewable supply on different scales, from self-sufficient, subnational regions to an interconnected continent. We not only show that a continental-scale system is the cheapest, but also that systems on the national scale and below are possible at cost penalties of 20% or less. Transmission is key to low cost, but it is not necessary to vastly expand the transmission system. When electricity is transmitted only to balance fluctuations, the transmission grid size is comparable to today's, albeit with expanded cross-border capacities. The largest differences across scales concern land use and thus social acceptance: in the continental system, generation capacity is concentrated on the European periphery, where the best resources are. Regional systems, in contrast, have more dispersed generation. The key trade-off is therefore not between geographic scale and cost, but between scale and the spatial distribution of required generation and transmission infrastructure.
T3  - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 146 
KW  - levelized cost
KW  - energy-system
KW  - power-system
KW  - storage
KW  - wind
KW  - reanalysis
KW  - decarbonization
KW  - transmission
KW  - integration
KW  - deployment
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-539611
IS  - 9
SP  - 1929
EP  - 1948
ER  - 
TY  - GEN
A1  - Lang, Kai-Olaf
T1  - Polen und Kerneuropa
T1  - Poland and core Europe
N2  - Mit großer Skepsis werden in Polen die Diskussionen zum Thema "Kerneuropa" aufgenommen. Das Land fürchtet, an den Rand gedrängt zu werden, sollte ein innerer Kreis in der EU, eine "Union in der Union", entstehen. Deutschland hat mehrfach die Idee eines Kerneuropa unterstützt. Ein deutsch-polnischer Austausch zu Inhalten und Perspektiven eines solchen Kerns könnte darum polnische Befürchtungen abbauen.
N2  - Poland is skeptical about the idea of a "core Europe". The country fears to get relegated to the fringes of European integration if an inner circle of the EU, a "Union in the Union", was to emerge. By starting a bilateral dialogue on the content and the perspectives of a "core Europe", Germany – which at various occasions has supported the idea of a core Europe – might be able to reduce Polish fears.
KW  - Europäische Union
KW  - Polen
KW  - Integration
KW  - Kerneuropa
KW  - European Union
KW  - Poland
KW  - integration
KW  - core Europe
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-9804
ER  - 
TY  - GEN
A1  - Khalil, Samir
A1  - Kohler, Ulrich
A1  - Tjaden, Jasper Dag
T1  - Is There a Rural Penalty in Language Acquisition? Evidence From Germany's Refugee Allocation Policy
T2  - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe
N2  - Emerging evidence has highlighted the important role of local contexts for integration trajectories of asylum seekers and refugees. Germany's policy of randomly allocating asylum seekers across Germany may advantage some and disadvantage others in terms of opportunities for equal participation in society. This study explores the question whether asylum seekers that have been allocated to rural areas experience disadvantages in terms of language acquisition compared to those allocated to urban areas. We derive testable assumptions using a Directed Acyclic Graph (DAG) which are then tested using large-N survey data (IAB-BAMF-SOEP refugee survey). We find that living in a rural area has no negative total effect on language skills. Further the findings suggest that the “null effect” is the result of two processes which offset each other: while asylum seekers in rural areas have slightly lower access for formal, federally organized language courses, they have more regular exposure to German speakers.
T3  - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 151 
KW  - refugees
KW  - allocation policies
KW  - rural
KW  - language acquisition
KW  - intergroup contacts
KW  - language courses
KW  - integration
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-566264
SN  - 1867-5808
SP  - 1
EP  - 11
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -