I published my first overview of shipping’s clean energy technologies at the end of 2021. A lot has changed since then, and decarbonisation has slowly but surely made its way to the top of the maritime agenda. I’ve been keeping tabs on the different technologies and companies that have been making waves in a dynamic, open-source database in the Ship Technologies section of this website. Here is an updated, non-exhaustive, TRL-agnostic, 2023 overview of the industry’s new on-board hardware technology ecosystem. The top changes during the last 18 months are: Do you know of any other company or technology that should be included here next time?Let me know!

The maritime technology ecosystem is evolving quickly and the shipping industry’s future most likely holds a multitude of alternative fuels and energy technologies. What’s already out there? Who’s building which technology and what does this new ecosystem look like? Here’s an overview. Notes: