Network infrastructure efficiently realised

Transmission and distribution system operators secure today’s and tomorrow’s energy supply. rensys supports you in the planning, construction and expansion of grid-relevant infrastructure – from substations to storage integration and system technology.

Standard-compliant solutions – tailored for grid projects of any size.

Years of experience in the energy industry, with project management for more than 8 GW of installed capacity
27
international offices with the ability to manage projects in 16 languages - always in line with local network requirements and operator specifications
6
Cost savings per megawatt of substation connection capacity in the last 18 months, with simultaneous expansion of total output
13%
Shorter project lead times thanks to integrated EPC management, which speeds up delivery and increases customer benefits
23%

News on international projects

Conversion of the 110 kV outdoor facility in Heusenstamm

9 months
Project duration
15 years
Experience
Read case study

Our solutions for the grid operators of tomorrow

Plan substations safely

We implement substations in the voltage range of 30–380 kV – including planning, approval, execution and standard-compliant commissioning.

Design grid integration

We seamlessly integrate feeders and storage solutions and ensure grid stability through protection concepts, grid studies and standardised communication.

Deliver complete system technology

We supply primary and secondary technology with grid operator approval, provide full documentation and deliver connection-ready systems in compliance with standards.

Grid operators & utilities

Leverage our 360° expertise

Network studies & protection concepts

We create grid studies and protection concepts in accordance with standards – for reliable, secure grid integration.

Commissioning

We accompany network projects through to synchronised, standard-compliant commissioning – documented and audit-proof.

Documentation

We provide complete project documentation, ensure auditability and enable straightforward further development.

Ready for your new energy project?

  • Reliable network solutions with over 27 years of experience
  • Everything from a single source: planning, procurement and implementation
  • Tailor-made network solutions – flexible and independent

1000+ successfully implemented energy projects since 1993

A network that drives energy

The world is on the move — we see global networking and technological dynamism as an opportunity for strong, future-oriented solutions.

Trusted by these customers

Frequently asked questions on grid infrastructure

Answers to key questions on planning, technology and implementation – tailored for network operator projects.

Your networks are our responsibility.

Ready to rethink energy together?