About Us

Superpower from Aachen

Voltfang is a system integrator for battery energy storage systems (BESS). We plan, implement, and support energy systems holistically—from the initial analysis and planning through storage and energy management to energy trading, operation, optimization, and financing.

We view energy not just as a technology, but as a system. We integrate storage, software, energy marketing, and operations in a way that makes renewable energy reliably available, reduces costs, and unlocks new economic potential.

Registered office at
Aachen
System integrator for battery energy systems
120+
Employees
Continuous growth in a diverse team
300+ installed systems
In use with customers
4.33 out of 5
stars
Customer satisfaction

Who we are

Voltfang was founded at RWTH Aachen University in 2020. As a central point of contact for BESS applications, we bundle technology, project implementation and economic structuring in such a way that projects can be implemented in a standardized, investor-friendly manner and with a clear risk profile.

Well-known companies such as ALDI Nord, Stuttgart Airport, Goldbeck, Phoenix Contact and Schaltbau rely on Voltfang. Our work has earned us the German Sustainability Award, the German Innovation Award (Business to Business Energy Solutions) and the EES Award, among others.

What Drives Us Every Day

This mission is what drives us every day. We build, connect, and operate battery storage solutions that make renewable energy reliable and affordable. We handle every step along the process chain—from the initial needs assessment and project planning through implementation to ongoing operation and marketing. We don’t just provide concepts; we implement projects that are scalable, economically viable, and designed for long-term impact.

“Every day, we build, connect, and operate battery solutions to make renewable energy reliable and affordable.”

Where We Want to Go

Our vision is to help build the backbone of Europe’s energy supply. To achieve this, we aim to create a decentralized and smart infrastructure that makes renewable energy predictable and reliable. We don’t just think in terms of individual projects, but rather in terms of an interconnected energy system in which generators, storage facilities, grid operators, investors, and consumers all work together. In this way, we aim to help replace fossil fuel-based energy generation, strengthen the renewable energy supply, and advance Europe’s energy sovereignty.

“Voltfang – The Energy Backbone.”

“Our goal is European energy sovereignty. Why do we remain dependent on gas and coal when the solution has long been available?” – David Oudsandji

Not had enough of us yet?

12.08. – Energy transition in the north: First large-scale co-located energy storage facility at a wind farm in Lower Saxony
29.04. – Aachen-based cleantech company becomes a full-service provider for energy sovereignty
January 15 – First battery storage facility in the lignite region of North Rhine-Westphalia connected to the grid

Still not? Then become a part of the Voltfam

At Voltfang you have the opportunity to learn new skills, work independently and autonomously, communicate your thoughts openly, and contribute new approaches and ideas. Why wait for politicians to finally change something when you can be part of this change yourself?