MHO-Co takes delivery of advanced hybrid CTV duo

Written by Nick Blenkey
Hybrid CTV on the water

MHO Asgard (above)and sister vessel MHO Apollo, are the third and fourth Incat Crowther-designed vessels for MHO-Co

China’s AFAI Southern Shipyard has delivered two Incat Crowther designed hybrid crew transfer vessels to Esbjerg, Denmark, headquartered MHO-Co. Measuring 34.4 meters in length overall and with an 11 meter beam, the CTVs, the MHO Asgard and the MHO Apollo, are the third and fourth Incat Crowther-designed vessels for MHO-Co, following on from MHO Esbjerg and MHO Gurli, and will service the Hornsea Project 2 offshore wind farm in the North Sea for Ørsted.

As we reported earlier, MHO-Co is leading a consortium that aims to develop a propulsion system that will use fuel cells and a new type of liquid-cooled battery to eliminate CO2 emissions and the two new vessels will later be used to test bed that technology. Meantime, they are powered by a state-of-the-art propulsion system developed in collaboration with Danfoss and Volvo Penta. The system comprises a pair of diesel drivetrains and a pair of diesel-electric drivetrains, each driving Volvo Penta IPS drives.

The main diesel engines are Volvo Penta D13s, producing 515 kW each. The generators used for the diesel-electric propulsion train are Volvo Penta D8-MH units. A further three of these units are located in the hulls amidship, alongside a Volvo Penta D5 used as a harbor generator. Propulsion is via highly efficient Volvo IPS units. Additionally, a Corvus battery system provides stored power for zero-emission operation.

The system allows the vessels to operate in zero-emission electric mode for up to 8 hours or, in combination with diesel propulsion, to achieve a maximum speed of 25 knots. Incat Crowther notes that the use of multiple modular generators enhances flexibility, as power generation can be optimized for the operational profile.

CTVs feature a design with a vast foredeck
The design’s flexible layout features a vast 110 square meter foredeck

Incat Crowther worked with MHO-Co to develop a design that improved on its predecessors, offering even more space and functionality. The design’s flexible layout features a vast 110 square meter foredeck with multiple tie-downs, deck crane, moon pool and the capability to take B2W, Bring-to-Work systems. The Z-Bridge BTW system has been trialled on MHO Esbjerg.

MHO Asgard and MHO Apollo accommodate 24 technicians in mid-deck cabins. A comfortable saloon for technicians is located on the main deck with 24 suspended seats, lockers, a pantry and a separate mess. Additional technician rest spaces are also located on this deck, as is a large wet room with lockers and showers.

“Designing and building hybrid CTVs is a huge step in the environmental direction, and I am proud that we at MHO-Co have found partners who share our vision for sustainable development in the offshore industry,” says MHO-Co CEO and founder, Mik Henriksen.

Ed Dudson, managing director of Incat Crowther Europe says: “MHO Asgard and MHO Apollo demonstrate Incat Crowther’s growing reputation for collaboration with operators and developers of new propulsion technologies, delivering fully-integrated solutions based on proven platforms.”

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