Energy Efficiency in railway systems


Energy Efficiency in the railway is initially achieved with the electrification of the railway networks, the use of regenerative braking of rolling stock and, later, with the implementation of reversible DC substation systems.

This chain in the permanent search for energy efficiency requires computer tools that allow us to model all these elements as a whole and optimize the railway energy system, considering different scenarios and/or operations phases.

IDOM introduces energy optimization methodology into all its projects. In Ireland, where the railway system renovation plan includes the electrification of the DART (Dublin Area Rapid Transit) network, or in the Barcelona Metro, a project involving the study of the traction system of the 5 conventional lines, including the analysis of the effect of the use of reversible substations and the optimization of the location based on the modes of operation both on working days and on holidays. Thanks to the use of the latest technology, energy efficiency of railway systems is just improved, but the use of this energy is also optimized.