Reliable onsite power, configured around your operation
ONENSYS starts with your operation. We configure the right H2-Powergen setup for your site.
We provide more than the power units alone. ONENSYS coordinates hydrogen delivery and makes sure reliable power is available throughout your project.
We’ll get in touch to understand your needs and assess whether one of our solutions could be the right fit.
Solution overview
H2-Powergen
Our H2-Powergen delivers sustained, zero-emission onsite power and operates fully off-grid.
It is suited to temporary and mobile operations where no grid connection is available, as well as sites where existing grid capacity is insufficient and additional capacity cannot be secured.
Key benefits:
- Zero NOx, CO2 or particular matter emissions
- Up to three units connected in parallel: 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*
- Available with contracted performance and service levels
*Depending on the construction project and use case, contact us for more information or read more about the SPUK SEB.
Hybrid power system
Efficient power for stable demand and short-duration peaks.
Our hybrid solution combines one or more H2-Powergens with a battery system. The H2-Powergen covers the continuous power demand and charges the battery when demand is lower. During short periods of high demand, the battery provides the additional peak power required, for example when electric equipment needs to be fast-charged.
Key benefits:
- Zero NOx, CO2 or particular matter emissions
- Configurable power supply depending on demand
- No environmental permit required for typical construction sites
- Grid code compliant — off-grid and grid-connected operation
- Free electricity with SPUK SEB subsidy*
- Available with contracted performance and service levels
*Depending on the construction project and use case, contact us for more information or read more about the SPUK SEB.
Solutions built around your energy challenge
Zero-emission onsite electricity, independent from the grid.
Every project has its own power requirements, operating profile and site conditions. At ONENSYS, we don’t believe in one-size-fits-all solutions. We start by understanding your operation and configure the onsite energy system that best matches your power demand, location and operational goals.
Whether you need reliable off-grid electricity, additional capacity where the grid falls short, or a hybrid setup that efficiently handles peak demand, our solutions are designed to keep your operation running with zero local emissions.
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.