Realising storage solutions technically

rensys realises connections, transformer stations and the technical design for pumped storage, battery storage, compressed air and flywheel storage as well as hydrogen systems – with standard-compliant planning, tested technology and complete documentation.

Holistic electricity infrastructure for industrial companies

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 current international projects

Conversion of the 110 kV outdoor facility in Heusenstamm

9 months
Project duration
15 years
experience
Read case study

Technology and implementation for storage solutions

Connecting pumped storage power plants

We supply primary technology, protection and control for pumped storage power plants

Precise battery storage design

Our lithium-ion systems ensure frequency control, peak shaving and market integration. We supply turnkey, fast-switching and cycle-proof systems.

Reliable support for compressed air reservoirs

We provide support with planning, connection and control concepts for CAES systems – economically viable and future-orientated.

Integrate flywheel accumulator

We connect flywheel storage systems to the grid and control system, ensuring fast, short-term power for industry and special applications.

Realising hydrogen applications

We develop grid concepts for electrolysis and reconversion, dimension safety systems and reliably couple electricity and gas.

Storage and system integration

Benefit from our 360° expertise

Technical design

We plan storage solutions in accordance with standards, check protection concepts and support their implementation.

Network connection

We create stable, compliant connections and coordinate network operators.

Clear project durations

With clear processes, we usually realise storage projects in less than 8 months.

Manufacturer independence

We use tested components from European and international partners.

Ready for your new energy project?

  • Reliable network solutions from over 27 years of experience
  • Everything from a single source: planning, procurement and implementation
  • Customised network solutions - flexible and independent.

1000+ successfully implemented energy projects since 1993

A network that moves energy

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

These customers trust us

Frequently asked questions about storage projects

Answers to key questions on technology, grid connection and implementation – especially for storage system operators.

Your networks are our responsibility.

Ready to rethink energy together?