We are building the Sun Age.

And by Sun Age we mean us, the Zun-H.

Zun-H operates across two countries to accelerate the development of solar hydrogen technologies. Our research and engineering activities are rooted in Finland, where a strong hydrogen network and knowhow provide the ideal environment for technical development. At the same time, our operations in Spain give us access to abundant sunlight and real-world conditions essential for piloting and scaling our system.

More about our technology

In Spain,

we are building a future where clean fuel can be produced anywhere the sun shines. Our work spans the full journey from scientific discovery to real-world deployment, all centered on one idea: transforming sunlight and water into clean hydrogen. This can bring fuel production close to industries, communities, and emerging energy systems. Our mission is to bring solar hydrogen production into the real world, safely, steadily, and at scale.

In Finland,

we are focused on research & development of solar hydrogen technologies. From our base, Sunila Green Industry Park, we design, develop, and operate systems that turn solid science into future energy solutions. True to Finnish engineering values, we build with reliability, simplicity, and durability in mind. From prototyping to system engineering, we develop products designed for global use – from the Nordics to the world.

Meet the team

Veera Tapionkaski
CEO

At Zun-H, we believe fuel can be made as simply as electricity: directly from sunlight. It’s a bold idea, but a necessary one – we need new ways to produce renewable fuels without relying on electricity alone. Our work is a step toward off-grid, self-sustaining energy production that diversifies the energy market and provides clean fuel accessible to masses.

Let’s talk