BeSystO® integrates central tasks such as the configuration of vehicle equipment, energy analyses, economic studies, the well-to-wheel analysis of environmental effects and the development of implementation concepts. Using variable parameters and standardised algorithms, implementation variants are analysed and recommendations made for the integration of buses with alternative drive systems in public transport. The client benefits from a tried-and-tested procedure that reduces the preparatory work involved in calibrating and parameterising the system.

One advantage of BeSystO® is its dynamic functionality, which allows parameter changes to be evaluated directly and displayed graphically, enabling a clear, data-based discussion. The modular structure of BeSystO® offers macroscopic analyses of the feasibility and economic viability of using electric buses. The dynamic linking of modules makes it possible to compare different bus system configurations, with all modules accessing a common database and avoiding error-prone duplication.

A sensitivity analysis allows the user to vary various influencing variables and thus approximate the optimum operation. BeSystO® adapts to the client's requirements and takes into account upcoming decisions and specifications.

BeSystO®-SOE evaluates the respective lines or vehicle circulation in terms of energy and determines specific energy requirements. This module also includes the design of vehicles, energy storage systems and charging/refuelling infrastructures as well as the simulation of the energy flow and charging/refuelling status over complete operating days.

BeSystO®-TCO provides the overall economic evaluation of the defined alternative drive system based on the net present value method, both in absolute terms and in terms of mileage. It is not limited to analysing investments, but also considers all technical and operational aspects, such as personnel training and planned system renewal intervals. The evaluation is carried out both in relation to the alternative bus system and in comparison with conventional drive systems. BeSystO®-TCO also includes a consideration of ecological effects, including the monetisation of CO2 emissions.

BeSystO®-LIA is a software tool that is used to analyse the energy balance of routes and to evaluate them with regard to the use of buses with alternative drive systems. For this purpose, a vehicle configuration is defined in advance for each drive concept to be analysed, which is primarily determined by its energy requirement and the energy content of the energy storage unit (battery and/or hydrogen tank). In addition, the timetable and rotation data is imported into the tool on a trip-by-trip basis.

This database is used to compare the energy requirement with the available energy storage content to produce a route-specific energy balance. As a result, possible energy deficits can be determined to map the respective circulation. In order to compensate for these energy deficits, charging points required for intermediate or opportunity charging (at line end points) can be included. This enables an automated evaluation of all rounds for each alternative drive concept.

BeSystO®-ELMA determines the required connected load to the power supplier and simulates the power consumption depending on the requirements, in a technology-open view.
When charging battery buses in the depot, the dimensioning of the required charging infrastructure is determined. The respective load curve over the course of the day is determined for different charging strategies by entering the circulation data as well as the battery capacity and the specific energy requirement per vehicle type.
By varying the charging power or postponing charging processes, the maximum power requirement can be reduced, sometimes significantly. This allows the required charging power per charging point, the required connected load at the grid transfer point and the total amount of energy to be calculated. The required electrotechnical dimensioning of the charging infrastructure and the energy costs for the power and labour price can be derived from this.
When supplying hydrogen buses, the electrical connected load is estimated based on the required hydrogen infrastructure. This includes either pure refuelling at the depot or on-site generation and refuelling.

In addition to a standardised inventory of the vehicle fleet, including planned initial or replacement purchases, BeSystO®-BIF also enables the existing and planned supply infrastructure for conventionally and alternatively powered buses to be recorded. In addition to diesel, natural gas and hydrogen infrastructures, charging infrastructure for recharging electrified buses is also included in the survey.
With BeSystO®-BIF, the transport company receives a well-founded statement regarding the procurement quotas prescribed by the CVD in the area of alternative drive systems. At the same time, the technological orientation of the company can be recognised and any existing deficits in the strategic orientation can be identified.

BeSystO®-UAA uses PTV VISUM® software to create a well-founded route plan for alternatively powered buses. Firstly, the existing "diesel bus rotations" are checked for suitability for the alternative drive technology. It often turns out that a new integrated overall route planning is necessary, taking into account the changed technical and operational parameters. The data and computing capacities of a transport model are used for this purpose.

As a result, different scenarios - e.g. in terms of drive technology, charging options or timetable design - can be compared with each other. Using industry-standard metrics (number of vehicles, empty kilometres, timetable efficiency, etc.), an objective and transparent decision can be made on the drive technology and supply infrastructure to be used.

BeSystO®-ÖPi is a hardware and software module for recording GPS trajectories and for processing and analysing the data relevant to the feasibility of using electric buses. For the trajectory analysis, the geographical longitude and latitude, the altitude coordinate and the vehicle speed are recorded.

BeSystO®-ÖPi records the ACTUAL data of the selected routes of the transport company over the duration of the desired survey period and thus enables a target-actual comparison of the daily routes. The software module also determines the classification into SORT cycles (Standardised On-Road Test Cycles) and TOPO classes (Topographical Classification).