Interview

Numériser les réseaux d'alimentation - pourquoi et comment ?

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  • 1/21/2025
  • La sécurité d’approvisionnement n’est possible qu’avec la numérisation des réseaux : Stefan Döbbe en est convaincu. Il est responsable informatique du partenaire système informatique Telemark. En tant que filiale des services publics municipaux de Lüdenscheid, Iserlohn et Menden, Telemark et donc Döbbe connaissent personnellement les défis auxquels sont confrontés les fournisseurs d'énergie et les opérateurs de réseau. Dans l'interview, il décrit la situation, présente des solutions pour les infrastructures critiques, donne un aperçu du projet et une vue d'ensemble des potentiels et possibilités futurs pour garantir l'approvisionnement en énergie.

    Climate change and the energy transition: how can we determine if our supply networks are reaching their limits, and what steps should be taken?

    Water management is a vivid example. We are increasingly struggling with flooding incidents, with livelihoods and human lives at stake. Hardly anything illustrates more clearly how important it is to continuously measure and monitor water levels.

    Does this apply to all networks in your opinion? Our power grids, too?

    Yes, the example can be applied to our electrical grids. Digitalization is absolutely necessary – urgently and extensively.

    Why the rush?

    We are proud to have our networks under control, but the electricity has always flowed in only one direction – from the producer to the customer. Today, the number of producers has multiplied due to PV systems and other possibilities. We need to bring unpredictable amounts of electricity into the grids, while meeting fluctuating needs. There's a limit to how much we can handle, so we must prevent network overload – and, if necessary, be able to dim according to § 14a of the EnWG.

    What does a quick initial response look like?

    Only digitalization based on sensible, carefully executed expansion planning can help.

    And on the horizon?

    We must have clarity: when is energy used where? To answer this, the energy flows in the network must be mapped using IT technology.

    Telemark

    Telemark est le plus grand fournisseur de services de télécommunication du sud-ouest de la Westphalie, avec son propre réseau de fibre optique et de câble en cuivre. Fondée en 1998 en tant que filiale des services publics municipaux de Lüdenscheid, Iserlohn et Menden, la société de télécommunication Telemark mbH exploite une infrastructure de communication indépendante dans le district de Märk. La tâche principale est de réaliser des systèmes complexes de contrôle et de régulation pour les entreprises d'approvisionnement et d'élimination.

    What is Telemark doing to implement this requirement?

    What is needed is software development combined with smart services. We offer this as a complete package. To achieve this, we rely on sustainable, reliable partnerships, such as those with WAGO. Over the past ten years, we’ve implemented several hundred projects with WAGO, supporting suppliers like municipal utilities, disposal companies or commercial enterprises. All those involved with gas, water, district heating and/or electricity benefit from Telemark’s comprehensive know-how and WAGO’s development expertise.

    What are the advantages for the customer?

    WAGO provides complete control cabinet solutions tailored precisely to the needs of the energy sector. Combined with Telemark's security solutions, this creates a service offering that is highly efficient for end customers and meets all critical infrastructure protection (KRITIS) requirements.

    How do you, as a partner, specifically address a new project?

    We create the catalog of requirements together with the customer and our partner. This is an intensive process we carry out on-site with the customer. Then, we develop a prototype based on these requirements. WAGO supervises the implementation. If the project is standardized, Telemark handles the hardware installation, parameterization, coordination and support during ongoing operation, including regular maintenance and servicing as needed.

    What are the key challenges within these projects?

    Modern, future-proof software solutions must be flexible and adaptable. WAGO speaks the various protocol languages and provides the software. WAGO Application Grid Gateway offers a solution that integrates changes and configurations, both for existing and older substations as well as new ones. After parameterization, the PLC transmits measurement data to the network control system at a second rate, including data on medium voltage, the transformer, low-voltage outputs, position messages and temperatures. External measurement technology can be parameterized for a wealth of additional data and commands, such as short circuit and ground fault direction indicators or power quality measurements.

    With DIN ISO 27001, we have the necessary certification for digitalization in critical environments.

    Stefan Döbbe | Head of IT at Telemark

    A lot of data goes back and forth. How do you ensure cybersecurity?

    With DIN ISO 27001, we have the necessary certification for digitalization in critical environments. The advantages for customers lie in the combination of digitalization and security expertise – from development to commissioning and updates during ongoing operations. Telecontrol and remote control provide the prerequisite for continuously updating systems over an extended period, while keeping expenses for network operators low.

    What happens in the future? What are the potentials and possibilities for continuing to secure the energy supply?

    Today, every consideration goes beyond expanding the network. We cannot continue to operate our networks piecemeal into the future. We must enable point control and leverage predictions. Network control in the future must rely on data models. We need to predict where interventions are needed. And if the energy transition is to succeed, we will need AI (Artificial Intelligence). There is no way around this.

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