
LIZZEY® – Energy Storage and Electrolysis.
This innovative technology stores wind and solar energy and uses it to produce green hydrogen 24/7.
More than a product:
our electrolysis system.
The Zinc Zwischenschritt Electrolysis (ZZE) makes 100% renewable energy profitable and possible through green hydrogen.
Innovative thinking:
the best of both worlds.
The new STOFF2 technology combines the production of hydrogen with inherent storage of energy.
Benefit for customers:
less costs, more efficiency.
Hydrogen costs are reduced as the ZZE use renewable power when it is abundant and favourably priced.
Our belief
The energy supply of the future is resilient and climate-friendly.
We are convinced that renewable energy can and must be fully utilized. Wind and solar are still frequently curtailed when grids and the market are unable to absorb the energy generated or transport it to where it’s needed. This slows down the energy transition and leaves valuable resources untapped.
Our impact
We turn renewable energy
into predictable energy.

Capture green energy.
Harness peak generation instead of curtailing renewable power.
Wind and solar installations generate green electricity. Surplus energy
can be captured, stored and used at a later time.

Store energy. Produce hydrogen.
Turn volatile renewable power into reliably available hydrogen.
LIZZEY stores energy in the form of solid zinc and uses it to produce green hydrogen on-demand

Supply on demand.
Produce green molecules where they are needed.
Green hydrogen and other green molecules are made available on site to industry and the energy sector.
Our product
LIZZEY® – Prototype –
ready to scale.
The modular basis for customised system designs.
A flexible core stack that can be integrated into a wide range of system configurations and power classes.
| INPUT | |
| 4 h × 128 kW DC | 513 kWh DC |
| OUTPUT | |
| 16 h × 23,4 kWh H₂/h | 375 kWh H₂ |
| 16 h × 6,6 Nm³ H₂/h | 105 Nm³ H₂ |
The turnkey solution for outdoor installation.
Ready to operate, easy to install and requiring minimal planning and commissioning.
| INPUT | |
| 4 h × 268 kW AC | 1.070 kWh AC |
| OUTPUT | |
| 16 h × 46,9 kWh H₂/h | 750 kWh H₂ |
| 16 h × 13,2 Nm³ H₂/h | 211 Nm³ H₂ |
The scalable solution for larger installations.
Modularly expandable and designed for flexible integration into buildings, existing infrastructure and industrial energy systems.
| INPUT | |
| 4 h × 1.800 kW DC | 7.200 kWh DC |
| OUTPUT | |
| 16 h × 328 kWh H₂/h | 5.250 kWh H₂ |
| 16 h × 92,6 Nm³ H₂/h | 1.480 Nm³ H₂ |
Our technology
A technology that puts
1 and 1 together.
In the first step, electricity is drawn at high power and the energy it contains is stored electrochemically in our cells. Oxygen is released in the process and metal is deposited on an electrode.
Energy that is safe and constant.
Energy is safely stored in form of solid zinc; this is what we call the intermediate step or in German “Zwischenschritt”. Our system does not store the energy in gaseous form, which means additional safety.
Reliable Hydrogen.
When discharging, the energy stored in the zinc layer is released as hydrogen: the zinc dissolves into the electrolyte and hydrogen is produced at the gas electrode. In addition, electricity and heat are generated. Since the charge-storage-discharge cycle is asynchronous, it can be flexibly adapted to special requirements.
Developers and operators of wind and solar farms
Harness energy peaks. Secure and Optimise long-term returns.
LIZZEY® makes surplus wind and solar power usable and creates additional value through the on-demand production of green hydrogen.
Distribution system operators for local and regional energy networks
Relieve grid constraints. Integrate renewable energy.
LIZZEY® absorbs surplus electricity, stores energy and supports the grid-friendly supply of green hydrogen.




