Grid Visualisation

Grid Visualisation

An important requirement for our system is meaningful visualisation of existing data from network management. The intuitive visualisation of network components can be regarded as core field of expertise of Venios. In the following, examples of existing projects are shown, successfully used by various industrial partners.

Visualisation of Network Structure including Status Data

Figure 1 – Load flow visualisation

Visualisation of load flow is integrated into the map view, where the momentary direction of the power flow is shown by small arrows along the lines. The current status of the “BDEW-Kapazitätsampel” is visualised directly via colouring of network components and lines.


With the Venios frontend, in addition to displaying, controllable elements are also available. Switching operations can be carried out interactively via switches within the detailed views. Switching is supported for self-built scenarios and stored in the database. In this way, Venios Energy Platform (VEP) enables the creation of modified network topologies, which are used for customised simulations. A forwarding to real existing components in the field is hereafter possible, with control protocols still to be implemented.

Figure 2 – Schematic network representation

Technical Aspects of our Visualisation

From a technical point of view, the existing solution for visualisation can be regarded as a microservice of the VEP cloud-platform. The visualisation itself is in turn modular and can be supplemented by more views with little effort.

Display as thin-client in the web browser

The visualisation is based on an application-specific framework for display in any web browser. The display of map material is based on the current version of the “Leaflet.js” library, which has established itself in recent years as market leader in the field of ​​map frameworks. To be able to provide the functions required for power network visualisation, several plugins have been developed by us.

The display of buttons and windows is based on the popular “Kendo.UI” library.

Real-Time Updates

Through a websocket connection via SignalR, the client is in permanent contact with the web server. This allows updated values ​​to be sent to the client as they become available. A delay due to necessary polling by the client can thus be bypassed.

Flexible Display

The mentioned visualisation framework offers flexibility for the installation of additional display menus. Here, it is possible to build views for individual microservices independently and display them within the view. Implemented as a single-page web frontend, it allows asynchronous content reloading via Ajax requests.

Support for Asynchronous Job Systems

The persistent connection with the server also makes it possible to keep the client up-to-date on the progress of background processes.


The whole frontend is based on modern browser technology and works as far as possible without the use of raster graphics. As a result, it is already prepared for the progressive increase in screen resolutions. Additionally, this results in a variety of visualisation options (dynamic color changes, etc.), which are not possible with conventional raster graphics.

Transparency Beyond Pure Visualisation

The holistic approach of Venios Energy Platform makes it easy to add more media to the system. For example, a regular email-report with a compilation of all important events and conditions is already available today.

Efficient Bandwidth Utilization

The software solution was developed under the condition to be able to run under a “normal” DSL internet connection.

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