Our journey toward a greener mobility sector.

At Water Stuff & Sun, we are united by a vision to reshape the future of energy. Founded by pioneers in the hydrogen industry, we aim to provide innovative solutions to the growing energy crisis through hydrogen storage technology that is efficient, safe, and sustainable.

Our journey toward a greener mobility sector.

At Water Stuff & Sun, we are united by a vision to reshape the future of energy. Founded by pioneers in the hydrogen industry, we aim to provide innovative solutions to the growing energy crisis through hydrogen storage technology that is efficient, safe, and sustainable.

Our journey toward a greener mobility sector.

At Water Stuff & Sun, we are united by a vision to reshape the future of energy. Founded by pioneers in the hydrogen industry, we aim to provide innovative solutions to the growing energy crisis through hydrogen storage technology that is efficient, safe, and sustainable.

Our Mission

"We believe that hydrogen holds the key to a cleaner, more sustainable energy future. Our mission is simple: to create groundbreaking solutions that make hydrogen storage and distribution more efficient, accessible, and cost-effective. We strive to accelerate the transition to a hydrogen-based economy that benefits both the planet and industry."

About the Sfeers

Emission-free energy cycle in harmony with nature.

Nature sets our example: energy from the sun, wind, and water are enough for a life in clean energy abundance. And we believe that hydrogen, nature’s very own source of power, is fundamental to humanity’s progress and the fuel of the future.

A smiling older man with a beard, wearing a dark shirt, against a light background. The image is in black and white.
A smiling older man with a beard, wearing a dark shirt, against a light background. The image is in black and white.
A smiling older man with a beard, wearing a dark shirt, against a light background. The image is in black and white.

The inventor of SFEERS, Lars Stenmark (1944–2016)

"It’s a rocky road to a hydrogen society, but finally we will all get there."

Lars Stenmark (1944–2016) was a space industry legend and adjunct professor at Uppsala’s Department of Engineering Sciences. At Angström Space Technology Center, he led research on micromechanical components for space. Driven by climate concerns, he developed SFEERS—earning him the nickname “the man who brought space down to earth.” The idea struck him while driving through Stockholm to file a patent. So inspired, he pulled over—partly for safety, partly to jot down notes.

"It’s a rocky road to a hydrogen society, but finally we will all get there."

Lars Stenmark (1944–2016) was a space industry legend and adjunct professor at Uppsala’s Department of Engineering Sciences. At Angström Space Technology Center, he led research on micromechanical components for space. Driven by climate concerns, he developed SFEERS—earning him the nickname “the man who brought space down to earth.” The idea struck him while driving through Stockholm to file a patent. So inspired, he pulled over—partly for safety, partly to jot down notes.

"It’s a rocky road to a hydrogen society, but finally we will all get there."

Lars Stenmark (1944–2016) was a space industry legend and adjunct professor at Uppsala’s Department of Engineering Sciences. At Angström Space Technology Center, he led research on micromechanical components for space. Driven by climate concerns, he developed SFEERS—earning him the nickname “the man who brought space down to earth.” The idea struck him while driving through Stockholm to file a patent. So inspired, he pulled over—partly for safety, partly to jot down notes.

Our Vision

Our vision is to develop the world’s leading standard for green hydrogen solutions – making green energy abundance safely accessible and affordable. For anybody. Anywhere.

Our Founders.

Chief Executive Officer

Thomas Korn

Thomas has been an expert on hydrogen technology for over 25 years. As CEO and founder, he is actively shaping the future of hydrogen for our society.

Chief Executive Officer

Thomas Korn

Thomas has been an expert on hydrogen technology for over 25 years. As CEO and founder, he is actively shaping the future of hydrogen for our society.

Chief Executive Officer

Thomas Korn

Thomas has been an expert on hydrogen technology for over 25 years. As CEO and founder, he is actively shaping the future of hydrogen for our society.

Chief Strategy Officer

Alvaro Sousa

In 2016, Alvaro co-founded water stuff & sun, where he is chief strategy officer, working on a technology that promises to make not only mobility but the economy greener for the future.

Chief Strategy Officer

Alvaro Sousa

In 2016, Alvaro co-founded water stuff & sun, where he is chief strategy officer, working on a technology that promises to make not only mobility but the economy greener for the future.

Chief Strategy Officer

Alvaro Sousa

In 2016, Alvaro co-founded water stuff & sun, where he is chief strategy officer, working on a technology that promises to make not only mobility but the economy greener for the future.

Chief Operating Officer

Jonas Flädjemark

In 2016, the foundations of water stuff & sun were laid and Jonas co-founded the company and has been its chief operating officer since then.

Chief Operating Officer

Jonas Flädjemark

In 2016, the foundations of water stuff & sun were laid and Jonas co-founded the company and has been its chief operating officer since then.

Chief Operating Officer

Jonas Flädjemark

In 2016, the foundations of water stuff & sun were laid and Jonas co-founded the company and has been its chief operating officer since then.

Meet our Team

Head of Corporate Finance

Dr. Dirk Schilder

Head of Corporate Finance

Dr. Dirk Schilder

Head of Corporate Finance

Dr. Dirk Schilder

Head of Technology

Lukas Kalt

Head of Technology

Lukas Kalt

Head of Technology

Lukas Kalt

Senior Development Engineer

Johan Bejhed

Senior Development Engineer

Johan Bejhed

Senior Development Engineer

Johan Bejhed

Senior Development Engineer

Kristofer Palmer

Senior Development Engineer

Kristofer Palmer

Senior Development Engineer

Kristofer Palmer

Development Engineer

Hanna Pettersson

Development Engineer

Hanna Pettersson

Development Engineer

Hanna Pettersson

Development Engineer

Julia Hansen

Development Engineer

Julia Hansen

Development Engineer

Julia Hansen

Executive Assistant

Gabriele Wilhelm

Executive Assistant

Gabriele Wilhelm

Executive Assistant

Gabriele Wilhelm

Development Engineer

Claudio Dias

Development Engineer

Claudio Dias

Development Engineer

Claudio Dias

Development Engineer

Tiago Santos

Development Engineer

Tiago Santos

Development Engineer

Tiago Santos

What our investors say.

Our investors empower a zero- emission solution for a sustainable energy cycle.

“Germany must lead in hydrogen technology to stay competitive. Our investment in WSS supports a startup with disruptive potential to drive the energy transition. The technology’s versatility is impressive, and we’re excited to support WSS in its next development phases.”

Ralf Sonnenwald

Managing Director ES Kapital

“Germany must lead in hydrogen technology to stay competitive. Our investment in WSS supports a startup with disruptive potential to drive the energy transition. The technology’s versatility is impressive, and we’re excited to support WSS in its next development phases.”

Ralf Sonnenwald

Managing Director ES Kapital

“Germany must lead in hydrogen technology to stay competitive. Our investment in WSS supports a startup with disruptive potential to drive the energy transition. The technology’s versatility is impressive, and we’re excited to support WSS in its next development phases.”

Ralf Sonnenwald

Managing Director ES Kapital

“Germany must lead in hydrogen technology to stay competitive. Our investment in WSS supports a startup with disruptive potential to drive the energy transition. The technology’s versatility is impressive, and we’re excited to support WSS in its next development phases.”

Ralf Sonnenwald

Managing Director ES Kapital

Not an investor yet?

We are happy to provide you with further information. Simply drop us an email.

Not an investor yet?

We are happy to provide you with further information. Simply drop us an email.

Not an investor yet?

We are happy to provide you with further information. Simply drop us an email.

Jobs @ water stuff & sun.

Jobs @
water stuff & sun.

At the heart of everything we do is a vision for a cleaner planet and life in harmony with nature – for everyone, now and in the future. This is why we founded water stuff & sun.

Contact Us

We are here to help. We highly value the relationships with our customers.
Send us an email and lets chat.

Phone

+49 (0) 89 92929926

Office

Water Stuff & Sun GmbH
Gutenbergstr. 3
85716 Unterschleißheim
München, Deutschland

Our Research and Engineering Locations

With headquarters in Munich and a technology hub in Uppsala, water stuff & sun is driving innovation across Europe to power a cleaner, more sustainable future.

Map of Europe highlighting locations for Sweden and Germany with brief descriptions of each.
Map of Europe highlighting locations for Sweden and Germany with brief descriptions of each.