Water treatment beyond compliance
Choosing a ballast water management system is about more than meeting regulatory requirements.
The system also needs to fit the vessel, its operating profile, water conditions and existing infrastructure, and be practical for the crew to operate and maintain.
- 01 Ballast Water Treatment
- 02 Freshwater solutions (RO)
- 03 Process Water Treatment
A BWMS unlike any other
Supporting reliable compliance through robust ballast water treatment solutions designed for challenging operating conditions.
Reverso Osmosis Systems
Helping vessels produce reliable, high-quality freshwater through efficient desalination solutions.
Discover how UV-technology lowers biological risk in land-based aquaculture
Tailored treatment solutions for demanding marine and industrial applications.
Meet the team at SMM Hamburg
Our specialists will be available throughout SMM to discuss your operational challenges and future projects.
+47 90 06 11 97
borge.gjelseth@norwegiangt.no
kristoffer.berge@norwegiangt.noSend email
lars-tore.lynge@norwegiangt.noSend email
alfred.gjelseth@norwegiangt.noSend email
One stand. Four companies. One shared ambition.
Norwegian Greentech is part of HAV Group, a maritime technology group bringing together specialised expertise across ship design, energy systems, and water treatment solutions.
At SMM Hamburg 2026, Norwegian Greentech will share a common stand with our sister companies HAV Design and Norwegian Electric Systems, alongside HAV Group. Together, we offer complementary expertise across key areas of maritime technology – from vessel design and engineering to energy, electrical systems and water treatment.
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How to choose the right ballast water treatment system?
There are multiple ballast water treatment systems (BWTS) available in the global maritime market. How do you choose the right one for your vessel?
Choosing the right ballast water treatment system is about more than meeting regulatory requirements. Vessel type, operating profile and sailing conditions all matter. In this article, Kristoffer Berge, Technical Manager at Norwegian Greentech, outlines the key considerations shipowners should make when selecting a BWTS, and why the right choice matters both on board and beyond the vessel.
Keeping your BWMS performing over time
See Norwegian Greentech carrying out a two-year service on board Rotsund. With the vessel docked next to our headquarters in Fosnavåg, Norway, our service team could put their expertise directly to work – supporting reliable BWMS performance throughout the vessel’s lifecycle.
Press to watch the service in action