Elhytec is reinventing hydrogen storage and supply through a breakthrough technology — decoupled electrolysis — delivering local, safe and economically viable autonomy.
Why now: autonomy has become critical
The need for energy, operational and logistical autonomy is growing rapidly, especially for isolated or constrained sites.
Two major challenges are converging:
- reducing dependence on heavy and vulnerable supply chains,
- replacing storable fossil molecules traditionally used to ensure autonomy
Local hydrogen: an obvious solution, still poorly served
Hydrogen can be produced locally, in a low-carbon way, and uniquely enables the coupling of uses: gas, heat and electricity.
Yet current local production and storage solutions — conventional electrolysis and high-pressure storage — remain complex, costly and difficult to operate.
For many users, hydrogen is still perceived as a “gas factory”, poorly suited to distributed, intermittent or small-scale needs.
One offer, two core families of use
- On-site hydrogen gas consumption
An integrated hydrogen storage and generation system designed for applications where autonomy is essential:
- intermittent industrial consumption,
- sites with strong installation constraints,
- specialised uses (meteorological balloon filling, alternator cooling, etc.).
Key benefits:
- elimination of hydrogen logistics,
- secured supply and cost stability,
- significantly reduced regulatory constraints.
- Hydrogen storage for guaranteed power supply
A system integrated into PV + batteries + fuel cell (or engine) architectures, ensuring 365-day power availability.
Key strengths:
- long-duration autonomy,
- high operational flexibility,
- intrinsic safety,
- optimal valorisation of local renewable electricity.
→ Clean, stable power, available everywhere.
See Target Applications
Application focus: meteorological balloon filling
Elhytec offers a configuration specifically designed for meteorological balloon inflation, replacing hydrogen or helium cylinders with a local, simple and safe solution that:
- guarantees gas availability,
- drastically reduces logistics costs and uncertainties,
- enables operation on isolated or weakly equipped sites,
- delivers short balloon filling times.
→ The reference solution for balloon launch sites
Elhytec and its Technology
What makes the difference: decoupled electrolysis
Elhytec has developed and patented a unique decoupled water electrolysis process, enabling on-demand hydrogen generation without electrical consumption at the time of use. Electricity is consumed beforehand, during an independent and fully controlled phase.
Concrete results:
- maximum safety (no simultaneous hydrogen/oxygen production, no high-pressure gas storage),
- extreme flexibility (electricity intermittency and variable hydrogen demand),
- controlled costs (standard industrial components, no compressor),
- simplified deployment and easier system integration.
A new way to access hydrogen: local, safe, without the complexity of conventional hydrogen systems.
Elhytec: a vision behind the technology
Our team brings together over 20 years of combined experience in energy, electrochemistry and hydrogen.
We have transformed a complex technology into robust, practical, use-oriented systems designed to enable true energy and operational autonomy.
Our technology has been recognised with the Solar Impulse label, awarded to solutions combining environmental performance with economic viability.
