Hydrogen storage methods

Easily order your green hydrogen from Watermeln

Our hydrogen products

De Watermeln Hy-Cube: een grote, witte mobiele waterstofcontainer op een trailer voor grootschalige energieopslag en bevoorrading van waterstofaggregaten op locatie.

H2 containers

Hydrogen containers up to 750 kg

HyCube

Watermeln Cube Bundle: compacte unit met drie waterstofcilinders voor duurzame energieopslag zonder emissies.

H2 bundles

Hydrogen bundles up to 35 kg

Cube bundle

Hydrogen Service

Always green hydrogen

Hydrogen service

Infographic 'All-in Waterstof Service': De oneindige cyclus van schone energieopwekking, transport en emissieloos gebruik op locatie, beschikbaar voor zowel huur als koop

Order your hydrogen here

Clean energy, worry free

Whether you need a few kilograms for a small-scale project or hundreds of kilograms for continuous operations—Watermeln delivers exactly what you need, right when you need it. We provide a reliable and flexible supply, perfectly tailored to your schedule and consumption.

Thanks to our own hydrogen fleet and experienced logistics partners, we guarantee a safe and efficient supply, regardless of your location in the Netherlands. And of course, our hydrogen is always 100% green—produced from renewable sources, allowing you to contribute directly to a cleaner future without CO₂ emissions.

With Watermeln, you choose convenience, certainty, and sustainability in one complete package.

Go to hydrogen service

Where do we excell in

Watermeln HY-CUBE: Mobiele 20ft groene waterstof opslagcontainer met >5.600 kWh capaciteit voor bouw en evenementen

Hydrogen containers

Every Watermeln unit comes standard with one or more hydrogen tanks and containers.

Hydrogen type
- Green hydrogen
Services
- Transport
- Connectig and disconnecting
- Hydrogen pay per use
- Back-up storage
E-capacity per load
- >5.600 kWh (20ft)
- >10.000 kWh (40ft)
Maximum capacity
- 440 kg H2 (20ft)
- 780 kg H2 (40ft)
Maximum working pressure
- 350 bar (20ft)
- 300 bar (40ft)
Usable capacity
- 415 kg H2 (20ft)
- 750 kg H2 (40ft)
Demensions
- 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)
- 13,60 x 2,44 x 3,99 meter (40ft container; incl trailer)
Weight
- 17.850 kg HY-CUBE 20FT
- 20.350 kg HY-CUBE 20 FT incl. trailer
- 21.500 kg CUBE 40 FT incl. trailer
Certifications & Compliance
- EN 12245 / ADR / TPED
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).

CUBE-Bundle

500 kWh, in the size of a fridge

Flyer

Hydrogen type
- Green hydrogen (from electrolysis)
- Type 4 cillinders
Services
- Transport
- Connecting & disconnecting
- Back-up storage
e-Capacity per load
- >500 kWh (450 bar)
- >420 kWh (350 bar)
- >360 kWh (300 bar)
Working pressure (15 °C)
- 450 bar (maximum)
- 350 bar
- 300 bar
- 20 bar (minimum)
Maximum capacity (15 °C)
- 35,1 kg (450 bar)
- 28.9 kg (350 bar)
- 25,5 kg (300 bar)
Usable capacity (15 °C)
- 32,9 kg (450 bar)
- 27,6 kg (350 bar)
- 24 kg (300 bar)
Demensions
- 1,20 x 1,20 x 2,55 meter
Weight
- <2.000 kg
Certifications
- ADR / TPED 2010/35/EU / ISO 10961
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).