Hydrogen Fuel Cell Systems | Unconventional Energy

What we make

Fuel-cell technology for drones, light mobility and backup power

Our customers are drone manufacturers, micro- and light-mobility OEMs and users of backup power. We supply stacks and systems to equipment manufacturers and do not compete with them with drones or vehicles of our own. Around the power source we can deliver the whole hydrogen ecosystem: local hydrogen production and storage, the fuel-cell power unit, integration and testing, and the approvals and certification work the application needs.

01 · STACKS

PEM fuel-cell stacks

Open-cathode, air-cooled stacks that need only a hydrogen feed and a fan. Start in under a minute, 50–60 % efficiency, low operating temperature.

OEM stacks for integrators
Aero stacks for UAV platforms
Gen 5 in production · Gen 7–8 in development

PEM fuel cell stacks →

02 · SYSTEMS

Power systems

Complete fuel-cell power units for applications that need long runtime, fast refuelling and reliability in the field.

Power systems from 1 kW upwards — modular design, no upper power limit (single stacks 500 W – 4.8 kW)
Drone fuel-cell systems (FCS)
Hybridisation with supercapacitors and batteries

Hydrogen drone power →

03 · INTEGRATION & APPROVALS

Integration, testing and certification

We fit the fuel cell into your device and make it work — and we carry the application through the approvals it needs.

Application engineering and test campaigns
Equipment safety audits, type approvals and certification support
Certified hydrogen-safety competence in-house

Talk to an engineer →

04 · HYDROGEN ECOSYSTEM

From hydrogen supply to ready products

Local hydrogen production and storage sized for the application, plus ready-made products where the customer needs a finished unit.

On-site hydrogen generation and storage solutions
Portable hydrogen generators and mobile backup-power units
Hydrogen bicycles for fleets, where applicable

Fuel cell generators →

All products → · All applications →

Why fuel cells

When runtime, refuelling and reliability matter more than the battery

A PEM fuel cell converts hydrogen and air directly into electricity, heat and water — no combustion, no moving parts beyond a fan. Against a lithium battery the case is simple:

No flammability or transport restrictions, 98 % of system mass reusable, and products designed and manufactured in the EU with no critical components sourced from outside the EU — a precondition for MIL and NATO supply-chain eligibility.

Tell us what to power

2 minRefuelling instead of hours of charging

−20 °CFull performance in sub-zero temperatures

~1/1000Critical raw materials compared with a lithium battery

~2×Power density of the established open-cathode standard

Heritage

More than twenty years of fuel-cell development

Our platform is the work of Pragma Industries, the French fuel-cell pioneer founded in 2004. In 2026 its technology, patents, trademarks, production equipment and team became part of the Forking Future consortium — and continue here, in Bayonne, as Unconventional Energy SAS.

2004Pragma Industries founded in the French Basque Country; PEM fuel-cell R&D begins
2019 · 2024Hydrogen systems in service at the G7 Biarritz summit and the Paris Olympic Games
2026Technology, patents and team acquired by Forking Future Oy; Unconventional Energy SAS founded in Bayonne
2027Production replicated in Finland; Gen 7–8 cells; Nordic sales and application engineering

now part of the Forking Future consortium

Commercially validated technology at TRL 9
Two PCT patent families valid until 2041 — 11 patents in total
Cell generations 1–6 developed and produced; Gen 7–8 in development
Drone integrations and generators delivered to European MIL and civil customers
Over 500 certified hydrogen bicycles delivered; more than 250 in daily use

One consortium, four countries, one European supply chain

Unconventional Energy is the business brand of the Forking Future consortium: independent fuel-cell companies in Finland, France, Norway and the Netherlands under one technology platform and one European supply chain. In France the business is operated by Unconventional Energy SAS; in other countries the consortium's local companies use the same brand. Cell chemistry and stack design come from Bayonne; production is replicated at the Finnish sites, with sales and application engineering in Norway and the Netherlands.

Bayonne, FranceUnconventional Energy SAS — product development, first production, customer supportOperational 2026

Lehmo, FinlandForking Future Oy — consortium lead company: IPR, financing, sales leadershipSince 2024

Varkaus, FinlandStack production line replicating the French model2027

Jyväskylä, FinlandProduction and R&D / industrialisation2027

Imatra, FinlandMILA — test and application centre for mobile solutions2027

Norway · NetherlandsSales, application engineering and defence channels2026–2027

About us → · Forking Future website →

Contact

Building a fuel-cell powered product? Let's talk.

Drone manufacturers, light-mobility OEMs, defence integrators and backup-power users: we size, integrate and commission the fuel cell for your platform — and supply the hydrogen ecosystem around it.

1 Application2 Needs3 Contact

What do you want to power?

Drone / UAVLong flights, heavy payloads Ground robot / UGVInspection, patrol, logistics Backup or off-grid powerMasts, sensors, remote sites Light mobilityBikes, small vehicles Something elseIntegration, research, testing

What does it need?

A rough answer is fine. Choose "Not sure yet" if you do not know.

Power Runtime per refill Lowest temperature where it runs How many units

When do you need it?

Where can we reach you?

Name Company Email Country

Phone (optional)So we can reach you if our email ends up in your spam folder. Anything else? (optional)

Prefer email? info [at] unco.tech

European hydrogen fuel cell systems and applications