Wattlab · Marine energy
Charging your fleet’s future.
Solar panels and battery systems built for inland vessels.
Validated by TNO
30+ vessels equipped
Rotterdam, 2017
Trusted by
HGK Shipping
Vertom
Berge Rederi
BRF Froan
TNO
Marine battery
WEstack
No shore power. No generator at night. Just clean, stored energy on demand.
Discover WEstack
Solar system
Solar Flatrack
Your deck is already there. Let it work for you — clean energy, lower costs, better ratings.
Discover Solar Flatrack
Recognition
Industry-recognised innovation.
IBJ Environmental Protection Award 2025
Wattlab won the IBJ award for the Solar Flatrack — recognising its impact on sustainable maritime energy.
Guinness World Record
MS Helios set the world record in 2024 with 312 Solar Flatrack panels on a 135-metre inland vessel.
EU Just Transition Fund
The ‘PV Systems for Seagoing Vessels’ project is co-funded by the EU through the JTF.
Contact
Let’s find the right solution for your fleet.
No obligations — we’ll calculate your fuel savings and ROI for free.
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