In 2020, the Swedish Transport Administration received a governmental assignment to analyze the conditions and plan for the expansion of electric roads. In the assignment, an analysis was made regarding a potential degree of utilization of electric roads in Sweden, based, among other things, on the development of heavy electrified road transport.
The degree of utilization is a central factor in being able to understand the consequences, for example in terms of environmental benefits and socio-economic profitability, that the establishment of electric roads can entail. The utilization rate in the Swedish Transport Administration’s report was estimated at 25% in the event of a full expansion of the electric road network by the year 2040. Due to external developments and the rapid technological development in the electric road market, other European countries have made similar investigations which resulted in other utilization rates. Therefore, there was reason to renew the analysis of the potential degree of utilization of electric road system in Sweden.
To be able to determine whether the utilization rates produced in the Swedish investigation still stood, a comparison was made between these calculations and the reports of four other European countries, Germany, France, Great Britain and the Netherlands. The aim was to analyze the importance and influence of various factors on the degree of utilization of electric roads. The goal was to present a method to be able to make comparisons regarding included factors as well as calculations of the degree of utilization based on selected factors.
This report proposes different approaches for estimating utilization rate, by exemplifying different estimates based on different input factors and calculation basis. The report also includes a sensitivity analysis to demonstrate how different assumptions can produce different utilization rate results.
The investigation shows that detailed information from several sources is required to be able to make reliable estimates about the utilization rate of electric roads. Based on the sensitivity analysis carried out, it becomes clear that Swedish long-distance transport accounts for the single greatest use of the electric road. It will therefore be important to examine which behaviors in the vehicle fleet that are required to switch to electric road operation, as these factors are decisive for the utilization rate.