Uniper’s long experience in the development of energy distribution infrastructure and grids gives us a deep understanding of the challenges in connecting the large-scale expansion of renewables

Icon substation

Your partner for grid solutions – we execute a complete range of products from small to large scale

Icon highvoltage

With the growth of renewables, the grid network across Germany will have to expand by over 270,000 km. Understand the challenge ahead with our infographic

With decades of experience delivering electrical grid upgrade and expansion projects we are the ideal partner to support your next challenge in the most efficient, technically secure and cost-effective way.

Our solutions can reduce your reliance on original equipment manufacturers and cost of the project. We focus our technical expertise on maximizing your return on investment over the lifetime of components.



Stay up to date with targeted industry insights from Uniper, and receive our latest publications such as case studies and paper presentations – all relevant to your industry. It’s fast and free to sign up today.

Sign up here

Case studies

Expanding electrical networks

Design review avoided potential cost and disruption

Challenging issues arose during the design and construction phase of our client’s onshore substation.

Read more in our case study …

Developing substation and transformer installations

World’s largest railroad converter

A 400kV substation, incorporating the world’s most powerful railroad converter, and a 100kV auxiliary connection were planned for our client’s new 1,100 MW coal-fired plant in Germany. We delivered project management, engineering, commissioning, quality assurance and quality control and temporary operation of the switchyard. The project was executed on time and in budget so that our client was able to successfully commission the 413 MW railroad converter, which is capable of supplying 25 percent of the power required by Germany’s rail network.

Providing access to the grid

Repowering a wind farm

Our German wind farm client planned to repower from 100 to 125MVA and their existing infrastructure needed analysis regarding capacity reserves and upgrade measures. We provided an OEM-independent study of spare capacities of transformers, switchgears and cables to minimize CAPEX and to extend lifetime of existing assets. We advised that only minor investments would be necessary to keep the electrical assets of the grid connection fit for future purpose. Our client avoided outages during the rebuild and benefited from a significant reduction in CAPEX for electrical infrastructure.

Delivering the benefits of local energy grids

Innovative community energy system

Our design provides a sustainable and scalable model for rural communities and businesses to tackle fuel poverty.

Read more in our case study …

Optimizing networks and operational efficiency

Asset management and maintenance improved

Our UK client engaged us to create an engineering governance framework and optimized maintenance strategy for their 110kV private network overhead line and substations connecting two manufacturing sites, 7km apart across a densely populated area. We redefined their asset management strategy and tendering for maintenance services. Our client benefited from reduced OPEX and also achieved both health and safety and environmental compliance.

Downloads & References

Martin Proll

Martin Proll

European Business Development
Ulrich Franke

Ulrich Franke

European Business Development
Doug Waters

Doug Waters

Energy Services Global