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Intercontinental cross-linking of power supply - calculating an optimal power line corridor from North Africa to Central Europe

Background An oversupply of solar radiation in Northern Africa as well as high energy consumption in the economic centers of Central Europe give reason to an international cross-linking of regenerative power supply. A fundamental precondition for this purpose is the development of high-capacity power lines. By this means only, the energy can be economically transferred from the sites of its production to the far-off centers of energy consumption. To date, however, there is little knowledge about how to identify the ideal course of the power line corridor. This study therefore presents a method enabling spatial optimization of the power transfer between North Africa and Europe. Methods In this research project, the key spatial factors for the planning of power line corridors were identified and depicted using geographic information systems. Besides focusing on the usage of already existing corridors - e.g., lines running along railways, which could be upgraded to high voltage direct current - attention was paid to the identification of spatial alternatives. In order to obtain insight into these questions, it is necessary firstly to identify centers of power consumption. Secondly, exclusion factors for the planning of power line corridors must be defined, and the corresponding restriction areas need to be visualized. Results It can be stated that the most favorable way of constructing a power line corridor is through flat barren lands and that it grows more expensive with the extent of the slopes and the share of woodland and utilized agricultural or marine areas passed by the power line. Furthermore, socio-economic cost factors such as labor costs, which are specific for each respective country, lead to a strong spatial diversification. Conclusions The presented method enables a technical and ecological structuring of the area of interest, which is the basis for the identification of optimal power line corridors. In retrospect, the project's main challenge was to harmonize the numerous geodata available in greatly differing quality.



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Keywords: 21920567,Intercontinental cross-linking of power supply - calculating an optimal power line corridor from North Africa to Central Europe,21920567,Katrin Walter, Stephan Bosch

ISSN: 21920567

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