Offshore grid connections

Integrating renewable energy sources and decarbonizing existing electricity infrastructure are key to meeting society’s energy needs while fighting climate change. Yet, these contributions to more carbon-neutral energy take place in remote areas often hundreds or even thousands of kilometers away from the centers of consumption. Effective solutions are vital to connecting all distributed power generation sources to the grid to make electricity available where it is really needed.

Siemens Energy supplies a comprehensive range of reliable, efficient, and proven transmission systems as grid access solutions that meet and master these challenges.

Renewables such as wind power (on- and offshore) play an increasingly important role in the energy mix and contribute considerably to the reduction of carbon dioxide emissions.

Siemens Energy supplies the entire of products and services to turnkey solutions required for efficiently harnessing the power of offshore renewables and getting the energy to the end consumer. This includes wind turbines and complete grid access solutions in HVAC and HVDC technology as well as monitoring and control solutions and operation and maintenance services.

Worldwide lowest emissions in offshore oil and gas production with offshore electrification solutions.

Increasingly also Oil & Gas companies are energizing their offshore installations by the means electrical energy.

Our HVDC and HVAC solutions supply industrial offshore sites efficiently with clean and reliable power. Siemens Energy`s HVDC and HVAC grid access and power supply solutions have proven their superior performance, reliability and availability in numerous projects all over the world - in the harshest climates.

Floating offshore wind opens the door to larger and deeper offshore areas with higher wind potential. Siemens Energy offers optimum floating substation solutions for the connection of floating offshore windfarms to the grid or floating power from shore to open the next frontier for renewables.

From small modular HVDC power from shore applications, or floating HVAC substations, up to full-scale +1 GW floating HVDC solutions, Siemens Energy can offer a lean and innovative floating substation solution for the most challenging environments, based on long-term proven high-voltage technology, and optimized for minimal environmental impact.

With clean air GIS solutions, ester-insulated transformers and closed cooling systems, the Siemens Energy floating OSS offers a valuable and sustainable grid connection for the future of floating windfarms.

There are many challenges to be faced in today’s energy world that is fundamentally changing at a rapid pace. Electricity must come from renewables such as wind and solar power. Power generation must be as carbon-neutral as possible. The distance between power producers and consumers is increasing because renewables resources like offshore wind farms are further away from consumer centers. Grid capacity is growing as fossil power generation is gradually shutting down.

This swiftly-advancing energy transition demands major changes to power grids, making it crucial to stabilize existing, strained grids to ensure continuously reliable operation. Guaranteeing security of power supply and consequently the security of reliable operation of such critical infrastructure is a matter of utmost priority. And while digitalization enables new technologies and solutions, it comes with the burdens of cybersecurity.

As a pioneer in offshore power transmission technologies and reliable partner for implementing high-voltage direct current (HVDC) and high-voltage alternating current (HVAC) solutions as well as flexible AC transmission systems (FACTS) and a comprehensive range of related services, we support you with our in-depth, long-standing experience in the field of power transmission and distribution.

With our holistic approach to the entire electricity transmission system, our experts drive continuous development in terms of both technology and economy. Collaborating with our customers, we deliver significant savings in the levelized cost of energy (LCOE) while further improving transmission system reliability and ensuring grid code compliance. And our expertise supports the zero-subsidy initiative for offshore projects.

Offshore Grid Connections Energy Landscape

Reliable partner

You're faced with important decisions concerning the future of your energy assets. How can you ensure your operations will remain successful in future? Let Siemens Energy be your long-term partner, supporting your projects anywhere, over any time – even over decades. Consult with us, and you can rest assured that, together, we’ll find the optimum solution to fit your needs.

HVDC PLUS technology connects Gode Wind 3 wind farm and other wind farms to German shore via a 90-km cable connection with 900 MW power rating (capacity) and voltage levels of ± 320 kV DC, 380 kV AC, 50 Hz
155 kV AC, 50 Hz connection from the HVDC platform to the wind farm
Direct current compact switchgear (DC CS) for ± 320 kV DC included to save approx. 95% of space compared to conventional solutions

Siemens Energy was chosen to deliver the HVDC system and equipment to transfer the significant power volume of 200 MW with high efficiency from onshore to offshore.
By transporting green energy from onshore to Phase 2 offshore, Equinor can reduce CO2 emissions by more than 620,000 tons.
The power distribution systems of Step 1 and Step 2 can operate in parallel to ensure high flexibility of power supply for the entire oil field – a novel application of HVDC systems.

Offshore grid connections

Connections to a secure, reliable, and more decarbonized world of energy

Offshore renewables

Offshore electrification

Floating substations

Zero-subsidy renewables