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OUR IMPACT ON THE ENERGY TRANSITION

As leading experts in the energy transition, we combine our knowledge and state-of-the-art battery storage technology to make the energy infrastructure of our future stable, flexible and sustainable.

It was clear to the founders: green flexibility should become THE energy company that drives change, sets new standards on the market and creates a real impact with long-term partnerships. And that is also realistic. After all, the experienced founders have already made history in the energy/battery market and developed the first virtual power plant (VPP) in Europe and brought it to market maturity. While others copied them, they set the standards in the industry. Experience shows that flexibility in the electricity grid works. With the founding of green flexibility GmbH, Christoph Ostermann and his team are building on this success story. We plan, build and operate large-scale battery storage systems throughout Europe on a long-term basis and take care of every step of the project - from identifying suitable sites to marketing the storage systems, and are open to cooperation with other project developers. We are an industry pioneer: we actively and proactively integrate local grid requirements into the realization of our projects. Together with the grid operators.

We offer more than just energy. We bring stability.

THE FOUNDING TEAM

CHRISTOPH OSTERMANN

CEO

Christoph Ostermann is a serial entrepreneur with over 20 years of expertise in the ClimateTech sector. As co-founder and CEO of a leading company in the field of decentralized energy storage (sonnen Group), he has significantly shaped the industry. In addition, he was/is active as an investor, supervisory board member and in an advisory capacity for various companies, investors, associations and public institutions.

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CHRISTOPH LIENERT

COO

Christoph Lienert is a founder, investor and consultant with over 10 years of experience in the ClimateTech sector. He was Vice President Strategy at the sonnen Group for five years. He is also an investor and advisor in various companies such as ESFORIN, 1K5° and gridX. Christoph Lienert is a qualified industrial engineer.

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HERMANN SCHWEIZER

CTO

Herrmann Schweizer is a CTO with over 20 years of experience in the electronics industry. He was CTO of the sonnen Group for seven years and was responsible for the development of hardware and virtual power plants (VPP). He then spent three years as CEO of Pramac Storage Systems, where he focused on grid-scale energy storage solutions.

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BERND ARKENAU

CFO

Bernd Arkenau is a venture capital investor with more than 13 years of experience in the ClimateTech sector. He is an investor and board member in various companies, including sonnen, 1K5°, envelio and saperatec. Previously, he gained experience in research & development and engineering in the energy and chemical industries. 

OUR MISSION

A future-proof energy supply for everyone - clean, affordable and sustainable.

 

Electricity is an indispensable part of our everyday lives. With the upswing in the energy transition, more and more electricity is being generated from renewable energies - a decisive step in the right direction. However, the volatility of wind and solar energy poses enormous challenges: our electricity grids are reaching their limits, electricity prices are fluctuating drastically and valuable energy is being lost because it cannot be stored and used efficiently.

green flexibility was founded to solve precisely this problem. With our innovative large-scale battery storage systems, we create a stable, flexible and sustainable power supply. Our storage systems capture surplus energy, release it when needed and thus stabilize not only the grid, but also electricity prices.we are setting standards in the integration of renewable energies, relieving the burden on infrastructure and driving forward the energy transition.

Our vision is clear: a clean, affordable and independent energy future for us all - and we are working every day to make this a reality.

OUR OFFICE LOCATIONS

OFFICE KEMPTEN

Our headquarters are located in the middle of the pedestrian zone in Kempten im Allgäu.

OFFICE MÜNSTER

Our new office in Münster is located right next to the train station.

FACTS & FIGURES

EXPERTS

> 30 

ensure an impact in the team at green flexibility. 

YEARS OF EXPERIENCE

> 100 

in battery storage technology are available in the team.

AUTOMATED 
ENERGY MANAGEMENT

100% 

for real-time reactions in the power grid.

PIPELINE

> 10 GW

with more than 80 ongoing projects. 

~ 10.000 

TONS

per installed megawatt of battery storage annually.

CO₂-SAVINGS

LOCATIONS

3

Kempten (HQ), Munich, Münster

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