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Ensuring reliable high-voltage DC transmission for decades

Siemens high-voltage direct current (HVDC) transmission has proven its high performance and reliability for many years. Nevertheless during the long lifecycle of HVDC, various services are required to support its optimal functioning or the economic and safe operation throughout the years.

Comprehensive services for all kinds of HVDC


Bringing energy from remote renewable energy generators to consumers and provide compensation for regional fluctuations in the production or consumption of electricity thanks to trans-national grid connections: HVDC transmission operators have to make sure their system provides the highest availability, performance, and efficiency at all times. One pillar to fulfill this challenge is best-in-class HVDC hardware and software. But that alone isn’t enough to guarantee efficiency, security, and reliability for decades: Your system also needs regular maintenance, modernization, security checks and updates.


Siemens provides you with comprehensive services to increase the transparency of your HVDC system as a prerequisite for optimization and to ensure continuous availability as well as the highest possible performance. You’re looking for preventive and corrective maintenance, sophisticated spare parts management, and modernization or retrofitting of older systems? We are at your side with our HVDC specific know-how and a wide-ranging service portfolio to ensure a highly available, secure, and cost-efficient HVDC operation as well as compliance with environmental and safety regulations.

Highlight services for HVDC at a glance

Siemens offers you a wide range of tailor-made services for your HVDC system. Among them, there are services such as our cyber security services for reliable and secure HVDC systems of the future.

Cover your cyber security needs with our digital services

As the digitalization of our energy system marches on, cyber security gets more and more important for your HVDC assets. Even if they aren’t directly connected to the Internet, think of all the other possible risks sush as manipulated IT devices or laptops from outside the station, e.g. from engineers or maintainers. Unauthorized changes of critical parameters and set points, control commands or device configurations can disrupt the power supply with serious, unforeseeable consequences for all participants in the energy chain. To prevent this from happening, we offer comprehensive cyber security services based on a defense in depth concept. We identify your technical vulnerabilities, recommend appropriate security measures and carry out their implementation. Our services for cyber security include: 

  1. Consulting regarding e.g. requirements, evaluating the own status quo and recommending the resulting security measures
  2. Patch management (three service levels)
  3. Security audit, penetration test and incident handling

Service overview

Comprehensive services for your HVDC system

From reactive to proactive services, from repair and spare parts to service programs – our service portfolio for all kinds of high-voltage DC systems cover everything you need to keep your system up and running as well as efficient and up to date.

Downloads, support, services

Our knowledge for your benefit

Get to know more about our services for high-voltage DC transmission: We’ll gladly place our information material on our HVDC services, training courses, newsletters, and more at your service.


Local training from a global network

Core and customized training courses in many training centers around the world or at your plant

Siemens Power Academy

Financial solutions for your business

Combining technology with financing to make your business stronger and more competitive 88/100

Embedded financing

HVDC services on all continents

We successfully deliver fast, competent and reliable product support for high-voltage DC transmission to all corners of the world.


News, media, and events

Stay up to date on our HVDC services

It’s worth your while to take a look! We’ll keep you in the loop about new services, new media offers, and trade shows and events where you can meet us.

We’re at your service

If you’d like to learn more about what we can do for a reliable, efficient, and secure high-voltage DC transmission, please contact our Customer Support Center. Our experts look forward to answering all your questions about our HVDC services, and we’ll be pleased to provide you with comprehensive information.

Want to know more? Our experts are happy to help you:
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