Ekonomisk analys av elvägssystemteknik : Elektrifiering av framtida Tvärförbindelse Södertörn
Sammanfattning: The following paper is a master thesis written at KTH Royal Institute of Technology in Stockholm, Sweden. This master thesis is done in a collaboration with a Swedish Consulting Company SWECO. The main focus of this master thesis is to investigate if an implementation of Electric Road System (ERS) on Södertörn Crosslink is profitable, and if so, approximate the payback period for the investment. Additionally, the costs associated with the electrification of the bus fleet, currently operating on road 259, will be determined. There are three different ERS technologies, inductive (wireless), conductive overhead, and conductive rail have been compared, looking at advantages and disadvantages, with regard to the implementation of ERS on Södertörn Crosslink. To accompany this, case study methods have been used, where the results are based on interviews, theory and calculations. The result shows that the payback period for both inductive and conductive rail, based on this study’s forecast, is 7 years and 9,3 years respectively with regard to a discount factor of 9,0 percent. However, the conductive overhead solution does not seem to be profitable as this technology is limited to heavy trucks and buses capable of connecting to the overhead wires. The inductive ERS solution seems to be the best suitable option for Södertörn Crosslink, viewed from an economical and technological perspective. while also considering other factors such as aesthetics.
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