Freiburger Verkehrsbetriebe - Germany

With the last extension of the EFS model - „Günterstal” – the tram network is now complete. It now includes 37km track, 85 stations, 26 DC-transformers, 63 coupling-switches, 2 energy-storages, 1 charging station for E-Buses.

VAG has already performed >150 simulations (status: early 2021).

DSW21 - Germany

Ordered, in development.

Ruhrbahn - Germany

EFS simulation.

Salzburg AG - O-Bus-Network

Complete network-analysis including a short-circiut simulation.

150km long trolleybus-system using energy flow simulation by KRUCH SIDOS. Our customer wanted a simple tool for simulating the energy flow under different conditions.

RET Line E

Simulation of a combined network (catenary and 3rd. rail) under special consideration of the traction curve at very low voltage on a 16km long rapid train railway route.

RET Line Hoek van Holland

ESF-simulation and optimization of the complete Line, which was in reconstruction at the time of the project. Through EFS we could print the available voltage on the contact wire along the map.

RET Tram

EFS-simulation of the complete tram network of Rotterdam. RET now also has the possibility to simulate the temperatures of the contact wire of a 70km long tram route.


Through EFS it is possible to measure the energy in the overhead contact line quick and easy. The current- and tension flow in the overhead contact line and the energy consumption of the vehicles are calculated very fast.


For the 2km long tram route in Utrecht KRUCH SIDOS simulates and analyses – in addition to the standard features – the electromagnetic fields that are produced by the overhead wire. The goal is the optimization of the catenary system, to reduce the magnetic fields in the surrounding of a hospital with sensitive equipment.


In Stockholm our EFS-software simulates the third rail of the 20km long underground railway, with the special function to directly compare different hardware options of the third rail.


The aim of this project is to find out whether there is sufficient energy for the proposed timetables of this 156 km-long tram line. It is scheduled for delivery in the third quarter of 2019.