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Your one-stop shop for emission-free solutions!
Accessoires
Power distribution boxes, Cables, Construction fences, ATEX signage
We provide green energy anywhere, anytime. The Watermeln hydrogen generator solution consists of two components: the WM-200 unit and external hydrogen tanks.
Intelligent battery & fuel cell combination
At Watermeln, we deliver green energy whenever and wherever it’s needed. Our solutions are designed to make sustainable power supply simple, reliable, and future-proof — without emissions and without the hassle. Our hydrogen solutions consist of four powerful components that integrate seamlessly:
- Hydrogen Generators (WM-200) – Robust, fully emission-free energy solutions that provide power exactly where it’s required.
- Hydrogen Storage – Safe, modular storage tanks providing the necessary capacity for any project.
Fast Chargers – For emission-free charging of electric vehicles, powered by our hydrogen generators.
Hydrogen Delivery – Reliable supply of green hydrogen, tailored to your consumption and schedule.
At the heart of our technology is the WM-200 unit, which works in tandem with external hydrogen tanks. This combination forms a flexible and scalable system that effortlessly delivers energy to any location — from construction sites and events to charging hubs and emergency power facilities.
With Watermeln, you choose complete peace of mind: we take care of installation, monitoring, hydrogen supply, and maintenance. This ensures you always have access to clean energy, without being dependent on the power grid.
The advantages of Watermeln
High uptime
- High electrical reliability
- Guaranteed certainty with All-in Hydrogen Service
- Uninterrupted 24/7 power
Scalable
- Scale up to 1MW
- Modular design
Online monitoring
- Remote monitoring 24/7
- Control from any device
- Smart ML & AI intergration
WM-200
The mobile hydrogen generator based on fuel cell and battery technology. The unit can operate in 3 operational modes: stand-alone off-grid, grid-connected, or with an additional battery for peak load.
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Power
- Peak 350 kW AC
- Battery: 200 kW AC (rated power)
- Fuel cell: 70 kW AC (rated power)
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Capacity
- Battery: 120 kWh
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Output
- 2x Powerlock 360A
- 2x 125A 5p
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Input
- Hydrogen 5.0 quality
- Input: 30-35 bar (quick connect), minimum input 20 bar
- Grid-connected: 22 kW 63A 5P
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Operational temperature
- -15 tot 45 graden °C
- (active conditioning)
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Weight and dimensions
- 4500 kg
- 2,99 x 2,44 x 2,59 meter (10ft container)
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Gas Control (External)
- HP connector: Staubli RBL06 of ISO 5145 No. 38 W30 2x LH
- Input: max 450 bar working pressure
- Output: 30-35 bar (Quick connect)
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Certification
- ADR transport (class-9)
- CE certification (NEN-EN-ISO 12100:2010)
- NEN-EN 13854:2019, NEN-EN-IEC 60204
- PED 2014/68/EU SEP art. 4.3
- Explosion safety documentation (ESD ATEX)
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Monitoring & control
- GPS & 4G online monitoring and commando's 7 inch control and monitoring touchscreen
Hydrogen tanks
Each Watermeln unit comes standard with one or multiple hydrogen tanks.
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Hydrogen type
- Green hydrogen (from electrolysis)
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Energy content
- 14.6 MWh (max)
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Usable electrical energy
- 6.1 MWhe (avg)
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Maximum pressure
- 350 bar
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Maximum capacity
- 440 kg H2
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Usable capacity
- 415 kg H2
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Dimensions
- 6,06 x 2,44 x 2,89 meter (20ft container; ex trailer)
- 9,00 x 2,44 x 3,99 meter (20ft container; incl trailer)
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Certification
- EN 12245 / ADR / TPED
CUBE-Bundle
500 kWh, in the size of a fridge
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Hydrogen type
- Green hydrogen (from electrolysis)
- Type 4 cillinders
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Services
- Transport
- Connecting & disconnecting
- Back-up storage
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e-Capacity per load
- >500 kWh (450 bar)
- >420 kWh (350 bar)
- >360 kWh (300 bar)
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Working pressure (15 °C)
- 450 bar (maximum)
- 350 bar
- 300 bar
- 20 bar (minimum)
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Maximum capacity (15 °C)
- 35,1 kg (450 bar)
- 28.9 kg (350 bar)
- 25,5 kg (300 bar)
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Usable capacity (15 °C)
- 32,9 kg (450 bar)
- 27,6 kg (350 bar)
- 24 kg (300 bar)
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Demensions
- 1,20 x 1,20 x 2,55 meter
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Weight
- <2.000 kg
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Certifications
- ADR / TPED 2010/35/EU / ISO 10961
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Site Requirements
- Distance to buildings (< 4m height): > 5 meters
- Distance to buildings (> 4m height): > 10 meters
- Distance to flammable objects (e.g., batteries): > 5 meters
- Surface: Paved ground or steel road plates
- Usage: Outdoor use only (not covered/indoors)
- Access: Clear access route for hydrogen exchange/swap
- ATEX Zone: 1.7 meters around the hydrogen unit
- Additional Information: Please refer to the Watermeln documentation for environmental authorities (Omgevingsdiensten).
Book your Watermeln generator now
After filling out the form, the Watermeln team will get in touch as soon as possible.