No obligations, we’ll help you estimate fuel, emissions, and cost-saving potential with our solar solutions.


The project ‘PV Systems for Seagoing Vessels’ focuses on the development and demonstration of an innovative Solar Deck solution. This project is co-funded by the European Union through the Just Transition Fund (JTF).

We are the worlds first company that compensates the hotel load on ships with solar panels
We are sustainable at heart, we believe in making the world a cleaner place, with one solar panel at a time.
We are born engineers and our expertise lies in robust solutions suitable for every ship
Founded in 2017, Wattlab is a Netherlands-based maritime solar energy specialist dedicated to delivering innovative solar power solutions for the shipping industry. As a pioneer in ‘solar power for shipping’, Wattlab provides fully integrated solar products tailored for both seagoing and inland vessels – including the Solar Flatrack and the SolarHatch. With installations on more than 30 ships worldwide, Wattlab has a proven track record of reducing fuel consumption, cutting carbon dioxide emissions, and improving operational efficiency. The company’s mission is to accelerate the maritime sector’s transition to cleaner, more sustainable energy through the power of solar technology. Note that in 2024, inland shipping operator HGK’s 135-metre dry cargo vessel MS Helios made The Guinness Book of Records for having the world’s largest solar panel installation on an inland shipping vessel: 312 solar panels.

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