H2-Powergen – Reliable power for your project site.
Zero-emission onsite electricity, independent from the grid.
Ideal for temporary power, mobile worksites and locations with no or limited grid capacity.
We’ll get in touch to understand your needs and assess whether one of our solutions could be the right fit.
H2-Powergen
Zero-emission onsite electricity, independent from the grid.
The H2-Powergen is a hydrogen-powered generator designed to deliver zero-emission, reliable and mobile electricity directly where it is needed. Whether your project requires temporary site power, mobile electricity for changing work locations, or off-grid power for equipment and charging, the H2-Powergen provides a practical zero-emission solution that keeps operations moving.
- Zero NOx, CO2 or particular matter emissions
- Modular deployment of up to three units: delivering up to 225 kVA (300 kVA peak) and 5.000 kWh/day
- No environmental permit required for typical construction sites
- Grid code compliant — off-grid and grid-connected operation
- Free electricity with SPUK SEB subsidy*
*Depending on the construction project and use case, contact us for more information or read more about the SPUK SEB
Built with VDL Projects, powered by Toyota
Reliability is critical for onsite power. Downtime can stop equipment, delay projects and create unnecessary costs.
That is why the H2-Powergen is built exclusively with components from leading technology suppliers, combined with robust engineering and high-quality production. The system is produced in collaboration with VDL projects and equipped with a Toyota fuel cell, combining industrial manufacturing expertise with proven fuel cell technology.
Together, these partners help deliver reliable, zero-emission power for demanding project environments where performance matters every day.
Key specifications
75 kVA (100 kVA peak)
400 V AC, 3 × 125 A
50–60 Hz
−25 à 45 °C
1.2 × 2.4 × 2.4 m
2,750 kg
We take care of your onsite power
Temporary power should not distract from the work that needs to be done.
We manage the complete onsite power setup, including system configuration, deployment, operational support and facilitation of hydrogen supply. This allows contractors and project teams to focus on their work while we ensure reliable zero-emission power onsite.
Interested in the H2-Powergen?
Contact us to discuss your project, power requirements and site conditions. Our team will help you determine which H2-Powergen set-up is the right solution for your application.
Frequently asked questions
The grid connection for my project is delayed — can ONENSYS provide power in the meantime?
Yes — this is one of the most common situations we solve. We assess your power demand and configure an onsite energy system that delivers the capacity you need while the grid connection is unavailable, insufficient or not yet ready, so your project can start on time.
Do I need a fixed grid connection to use an ONENSYS system?
No. Our systems operate off-grid and grid-connected. For temporary and mobile projects we provide reliable power without depending on fixed infrastructure, and the setup can move with your project.
My site must meet zero-emission or Natura 2000 requirements. Is that possible without stopping work?
Yes. We configure zero-emission onsite power that supports compliance with Natura 2000 restrictions, SEB requirements and procurement criteria — without bringing your operation to a halt. Where conventional generators are no longer allowed, this is exactly the gap we fill.
I'm not sure which challenge applies to my project. How do I find out?
Many projects face several overlapping constraints: limited grid capacity, emission requirements and tight timelines. Contact us to assess your onsite power challenge. We evaluate your energy and power demand, grid situation and emission requirements, then explore the right power setup for your site.
Can ONENSYS guarantee system performance?
Depending on the project and operating requirements, ONENSYS can agree contracted performance levels covering areas such as power availability, monitoring, maintenance and service response. The exact commitments and conditions are defined in the project agreement.