MAN Energy’s Multi-Fuel Engines Power Maritime CO2 Carrier

MAN Energy Solutions will deliver two 16-cylinder 175D-MEM engines to the Netherlands’ Royal Niestern Sander Shipyard, which will construct a multi-purpose CO₂ carrier for Wagenborg Operator: the EasyMax 5. Each engine will generate 2,400 kW at 1,800 rpm, powering the vessel for offshore, substrate CO₂ storage. The EasyMax vessel features a 14,000-ton cargo capacity and will be chartered by INEOS Denmark. MAN will deliver the engines in 2025.

“This order represents a new type of reference for the 175D,” said Bart Speckens, Regional Sales Manager, MAN Energy Solutions. “In general, 175D is a versatile engine with the lowest environmental footprint and operating costs in its class due to its high fuel-efficiency and long service intervals. We’re proud to be involved in a project that will ultimately sequester millions of tons of CO₂ from hard-to-abate industries.”

The CO₂ will be captured at a Danish biogas plant, then transported to Esbjerg for loading onto the EasyMax 5. From here, the carrier will deliver and store the captured CO₂ at the Greensand site offshore Denmark in the North Sea. MAN Energy’s 175D generator sets will input more power to the vessel’s CO₂ pump and dynamic positioning systems, improving discharge operations during offshore storage.

EasyMax 5 CO₂ carrier; image credit: MAN Energy Solutions

About the 175D

The 175D engine, developed for the maritime sector, is available in 12-, 16-, and 20-cylinder variants with a power output range from 1,500 – 4,400 kW. It operates with low fuel consumption and complies with recent exhaust-gas-emission requirements. MAN also considered future fuel requirements, so the 175D is biofuel-capable with hydrotreated vegetable oil and fatty acid methyl ester.

The model is optimized for:

• Ferries
• Offshore support ships
• Tugs
• Superyachts
• Planing yachts
• Naval marine vessels

More 175D Deliveries

This week, under two separate contracts, MAN Energy Solutions agreed to deliver 175D engines for multiple Portuguese Navy newbuild vessels: a multi-purpose vessel (MPV) and an offshore patrol vessel (OPV).

For the first delivery, Damen Shipyards Group ordered four 175D engines to build a 107-meter-long MPV, with primary mission roles such as oceanic research, search and rescue, emergency relief, maritime safety, and naval-support operations. The shipset will comprise:

• Two 12-cylinder 175D-MEM engines, generating 1,800 kW each at 1,800 rpm
• Two 16-cylinder 175D-MEM engines, generating 2,400 kW each at 1,800 rpm

MAN Energy will deliver the engines in 2025, with vessel delivery slated for 2026.

For the other project, West Sea-Estaleiros Navais will install 12x175D engines on six under-construction, 83-meter OPVs. These Viana do Castelo-class vessels will conduct long-range maritime surveillance and patrol missions, search-and-rescue operations, and may be equipped with weapons and sensors to conduct military missions in turbulent maritime areas.

Specifically, the order comprises six shipsets with two 16-cylinder 175D-MEL engines, generating 2,960 kW each at 1,800 rpm. They will be assembled at MAN’s Frederikshavn facility in Denmark and are scheduled for delivery between 2026-2029. Each vessel will be delivered 18 months after the shipsets arrive in Portugal.

In early March, MAN Energy Solutions agreed to deliver six 12V175D high-speed, variable-speed generator sets to the CRIST S.A. Shipyard in Gdynia, Poland, which is building an OSV for the DOF Group. The vessel will support operations offshore Newfoundland, Canada, including gas crew changes, drilling support, field-safety standby, emergency towing, and ice management. The Sea Dragon is slated for delivery by Q1 2027.