Site items in: Global

Article

Emission performance of ammonia-fueled, two-stroke marine engines

Kevin Rouwenhorst May 06, 2025

We explore recent, full-scale, dual-fuel engine testing results from leading maritime vendors such as MAN Energy Solutions and WinGD. Testing indicates negligible emissions of the potent GHG N₂O (which can be fully eliminated with catalytic treatment), and significantly lower NO_X emissions for engines running in ammonia mode, compared to running on fuel oil or diesel. Overall, compliance with IMO Tier II and III emission limits is well within reach for the first generation of ammonia-fueled maritime engines.

Article

MEPC 83: global shipping gets its first-ever emissions pricing mechanism

Julian Atchison April 23, 2025

The regulations send a clear signal to industry – business as usual operations will become significantly more expensive, and zero or near-zero (ZNZ) technologies and fuels represent one of the better opportunities to make deep emissions cuts. Following the historic vote at the IMO, we explore critical timelines for the new regulations, compliance thresholds, mechanisms for vessels to comply, and uncertainties that remain.

Article

MAN, COSCO to cooperate on engine retrofits

Julian Atchison April 14, 2025

The collaboration integrates MAN’s dual-fuel engine technology with COSCO Shipping Heavy Industry's repair and vessel modification capabilities.

Organization

CertifHy

Article

ZEMBA launches latest e-fuels tender

Julian Atchison March 25, 2025

The Zero Emission Maritime Buyers Alliance has launched its second tender process for decarbonized fuels. Starting in 2027, the tender aims to cover multi-year cargo shipping demand equivalent to 1.5 million loaded, twenty-foot shipping containers transported from Shanghai to Los Angeles.

Article

Setting the scene for ammonia maritime fuel: regulatory needs and timelines to decarbonize shipping

Julian Atchison Kevin Rouwenhorst Andrea Guati Rojo Trevor Brown March 21, 2025

2025 is a critical year for the adoption of ammonia fuel in shipping. Here, we preview important upcoming meetings of the International Maritime Organization, what regulatory gaps are being filled by this work, potential candidates for decarbonization measures, and progress in engine development. All this sets the scene for incredible progress to be made in the coming years.

Article

Seafarer training for marine ammonia fuel comes into focus

Julian Atchison March 12, 2025

Already in 2025, we have seen multiple initiatives launched and resources released to contribute to seafarer training ahead of the first ammonia-fueled vessels. Here, we explore the IMO’s first training guidelines, a new bunker training facility in India, and a safe procedures manual for ammonia bunkering developed by Copenhagen Infrastructure Partners.

Article

Hanwha, Baker Hughes to develop fuel-flexible small-size turbines for maritime propulsion

Julian Atchison March 11, 2025

The pair will jointly develop a new small-size, 100% ammonia-capable turbine for maritime applications. Tests will be completed by the end of 2027, after which the ~16 MW unit will be commercially available for orders.

Organization

Purus

Article

The Fertilizer Institute, Ammonia Europe launch carbon intensity certification programs

Julian Atchison January 28, 2025

TFI and Ammonia Europe have both launched voluntary certification schemes, aiming to help ammonia producers verify the emissions footprint of their products and attract customers. Both schemes have informed the development of the AEA’s umbrella certification scheme, which is now progressing to the pilot stage.