Portuguese 
English 
Spanish 
2 min of reading 
0 comments 
Sustainable Innovation: Redefining Environmental Standards in the Maritime Industry, Wärtsilä Launches Commercial Ammonia Engine, An Eco-Efficient Alternative for Bulk Carriers
According to The Maritime Executive, Wärtsilä is leading the revolution in sustainable maritime transport with the launch of the first engine powered by dual fuel, a 4-stroke ammonia commercial engine. This promising innovation is about to transform the industry, offering an eco-efficient alternative for bulk carriers.
The ammonia solution, based on the proven Wärtsilä 25 engine platform, represents a significant milestone in the quest for more environmentally friendly transport operations. The President of Wärtsilä’s Marine Power business, Roger Holm, highlights the versatility of the engine, designed to operate not only on diesel and LNG, but now also on ammonia, a sustainable fuel that drives the transition to a greener future.
Efficiency and Sustainability: The Wärtsilä 25 Engine in Detail
Introduced in September 2022, the Wärtsilä 25 is a modular medium-speed 4-stroke engine, recognized for its upgradable modular structure and high power per cylinder. This engineering feat not only meets current demands but also projects into the future, offering a comprehensive solution that includes the AmmoniaPac for gas fuel, the WARMS ammonia release mitigation system, and the NOx (NOR) reducer for optimal exhaust treatment.
-
For the first time in history, 900 quilombola and riverine families in Marajó will have electricity — teams take solar panels by boat to communities without roads.
-
In 80 years building 22 thousand dams, Brazil impacted more than 4 million people — and the law approved in 2024 to protect those affected has not yet come into effect.
-
China is building 5 cascade dams for $167 billion in Tibet — and the Motuo Project will have 70 GW of capacity, three times more than the world’s current largest power plant.
-
993 schools and 217 healthcare facilities in the Amazon still lack electricity — while Brazil entered the world Top 4 in renewable installations in 2024.
Partnerships for a Sustainable Future: Viridis Bulk Carriers at the Forefront
Viridis Bulk Carriers is ready to be a pioneer, being the first to adopt this innovative solution. As part of a strategic partnership with Amon Maritime, Mosvolds Rederi, and Navigare Logistics, Viridis aims to operate short-duration bulk carriers powered by ammonia, a sustainable fuel, in the North Sea. This ambitious initiative, partially funded by the Norwegian government’s Enova initiative, aims to launch the vessels in 2025, marking a significant advance toward environmental and sustainability goals.
By joining forces with Viridis Bulk Carriers, Wärtsilä not only drives innovation in the sector but also solidifies its ongoing commitment to developing sustainable technologies that reduce greenhouse gas emissions, such as the ammonia-powered engine. Stefan Nysjö, Vice President of Energy Supply at Wärtsilä Marine Power, emphasizes that the launch of the Wärtsilä 25 is just the beginning of a journey committed to a more sustainable future.
In this scenario of revolutionary changes, Wärtsilä continues to lead the way, not only with innovative engines but with an ambitious vision of a maritime sector whose engine is driven by sustainable fuels, where bulk carriers and ships sail powered by the clean force of ammonia fuel. The quest for more sustainable maritime transport is now a tangible reality, and Wärtsilä is at the forefront of this transformation.
Be the first to react!