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Zero-Emission with Watermeln

Clean energy, made easy

Whether you’re organising a festival

A large-scale construction project

Or seeking a grid congestion solution

Watermeln is the emission-free answer

For off-grid projects

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Watermeln

Clean energy made easy

Mobile power supply for locations without (or limited) grid connection. A sustainable alternative to a (hybrid) diesel generator, with zero emissions. High in capacity and power, compact in size.

Our key principles

  • Safety First: Uncompromising safety in all we do.
  • Smart Geniuses: 4G-connected, insightful generators.
  • Pure Green: 100% eco-friendly, zero emissions.
  • Instant Solutions: Plug-and-play, tomorrow at your project’s doorstep.
Use cases
Gereedschap bouw 2.

Construction sites

Zero-emission construction site

Construction sites
Event & festival 2

Events

Zero-emission events

Events
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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

Clean energy, worry-free

You bring the e-machine, we provide the power.

From hydrogen storage to on-site connection, Watermeln provides complete peace of mind. We deliver on-demand green power with simplicity, handling transport, installation, monitoring, and maintenance. Ensuring you always have a reliable electricity supply.

  • We oversee transportation
  • We handle the installation
  • We monitor everything
  • We manage the maintenance
  • You enjoy the green electricity

The advantages of Watermeln

Parallel schakelen van Watermeln waterstofaggregaten voor schaalbare en betrouwbare groene stroomvoorziening.

High uptime

  • High electrical reliability
  • Guaranteed certainty with All-in Hydrogen Service
  • Uninterrupted 24/7 power
Gegarandeerde uptime door geschakelde Watermeln waterstofaggregaten voor constante emissieloze stroom.

Scalable

  • Scale up to 1MW
  • Modular design
Real-time cloud monitoring van de Watermeln waterstofaggregaat via het my.watermeln online dashboard.

Online monitoring

  • Remote monitoring 24/7
  • Control from any device
  • Smart ML & AI intergration
Learn more
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Why choose us

We make sure you have power

At Watermeln, we believe that sustainable energy doesn't have to be complicated. With our silent and emission-free hydrogen generators, we provide clean power at any location—without emissions, without noise, and without worries.

We are known for our personal touch and dedicated drivers who ensure that every detail is handled perfectly. Our clients benefit from full peace of mind: from navigating legislation to placement and reporting, everything is managed for you. And with our 24/7 service, you are always guaranteed reliable support, wherever and whenever you need it.

As the market leader in the Netherlands, we demonstrate every day that sustainable power supply can be more than just cleaner—it can be easy.

Used by

Small difference in price, but a world of difference in emissions

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Watermeln H2-generator

  • € 1,63* Price per kWh
  • € 3.400 + € 1.250 Rent
  • € 3.500 Fuel
  • 5.000 kWh
  • Total
  • € 8.150 Projectkosten
  • 0 ton CO2 Emission
  • 0 kg NOx emission
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Battery swap

  • € 2,10* Price per kWh
  • € 4.000 + € 4.000 Rent
  • € 2.500 Fuel
  • 5.000 kWh
  • Total
  • € 10.500 Projectkosten
  • 0 ton CO2 Emission
  • 0 kg NOx emission

You save € 2.350 and 0 ton of CO2 + 0 kg NOx with the Watermeln generator

*Disclaimer & Calculation Basis Prices are per week, excluding Total and Emissions. The values used for this calculation are based on market averages and Stage V emission standards. Usage is based on 1000 kWh per working day, 5 working days per week, with 24/7 power requirements. Hydrogen price is €11 per kg, HVO price is €1.80 per liter, excluding VAT and logistical costs. Including rental of assets and storage tanks. The monthly period is calculated as 4.5 weeks. Based on a 250 kVA HVO generator and a 250 kVA battery pack. Electricity price at charging station at €0.50 / kWh. No rights can be derived from this calculation.

Our technology

As much power and capacity as a traditional generator, but fully sustainable and without harmful emissions. It may sound like a pipe dream, but thanks to Watermeln's innovative hydrogen generators, this is now a reality.

With battery and fuel cell technology we provide powerful peak power from the battery, while the fuel cell keeps it continuously charged. Our hydrogen bundles store up to 10 times more energy per square metre than traditional batteries, and with a quick swap in just 10 minutes, we ensure unlimited capacity.

Our technology
 
  • Mobile plug & play
  • Up to 7000 kWh capacity per delivery
  • Highly powerful
  • Sustainable (zero emissions)
  • Full peace of mind
  • Online monitoring
Hy-Cube hydrogen Watermeln
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Get in touch

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Basic explanation

Interesting insights into the Do's & Don'ts of hydrogen applications.

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Project Advice

Free and honest advice on battery power supply, hydrogen legislation, and site placement.

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Rent & buy

Request a customized quote for your specific application.

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Demo project

Start your first project at a reduced rate with full A-to-Z support.

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Only hydrogen?

Delivery and connection of hydrogen to your own equipment.

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Miscellaneous

  • Batteries only? Problem solved!
  • Working with Watermeln
  • Expert Insights for Professionals
  • Internships & Careers
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Book your Watermeln generator now

After filling out the form, the Watermeln team will get in touch as soon as possible.

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