Impacts of Electric Road Systems on the German and Swedish Electricity Systems—An Energy System Model Comparison
Artikel i vetenskaplig tidskrift, 2021

This study analyses the impacts of electrification of the transport sector, involving both static charging and electric road systems (ERS), on the Swedish and German electricity systems. The impact on the electricity system of large-scale ERS is investigated by comparing the results from two model packages: 1) a modeling package that consists of an electricity system investment model (ELIN) and electricity system dispatch model (EPOD); and 2) an energy system investment and dispatch model (SCOPE). The same set of scenarios are run for both model packages and the results for ERS are compared. The modeling results show that the additional electricity load arising from large-scale implementation of ERS is mainly, depending on model and scenario, met by investments in wind power in Sweden (40–100%) and in both wind (20–75%) and solar power (40–100%) in Germany. This study also concludes that ERS increase the peak power demand (i.e., the net load) in the electricity system. Therefore, when using ERS, there is a need for additional investments in peak power units and storage technologies to meet this new load. A smart integration of other electricity loads than ERS, such as optimization of static charging at the home location of passenger cars, can facilitate efficient use of renewable electricity also with an electricity system including ERS. A comparison between the results from the different models shows that assumptions and methodological choices dictate which types of investments are made (e.g., wind, solar and thermal power plants) to cover the additional demand for electricity arising from the use of ERS. Nonetheless, both modeling packages yield increases in investments in solar power (Germany) and in wind power (Sweden) in all the scenarios, to cover the new electricity demand for ERS.

electric vehicle

variability management

energy system modeling

vehicle-to-grid

smart charging

method

Författare

Johanna Olovsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 1

Maria Taljegård

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Michael Von Bonin

Fraunhofer Institute for Energy Economics and Energy System Technology IEE

Norman Gerhardt

Fraunhofer Institute for Energy Economics and Energy System Technology IEE

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Frontiers in Energy Research

2296-598X (eISSN)

Vol. 9 631200

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Ämneskategorier

Energiteknik

Energisystem

Annan elektroteknik och elektronik

DOI

10.3389/fenrg.2021.631200

Mer information

Senast uppdaterat

2021-08-10