US-based marine engineering company Elliott Bay Design Group (EBDG) has revealed the design of a new harbour power and charging barge.

The new design is expected to serve as a ‘cost-conscious and high-performing option’ to reduce emissions from large vessels both pier side and at anchor.

With a capacity to deliver 7MW of continuous power generated by methanol, the floating mobile platform has the potential of cold ironing pier-side and at anchor vessels for up to two weeks prior to refuelling.

Featuring a Wärtsilä W32M Tier IV methanol generator for cold ironing, the vessel consists of e1 Marine’s M30 hydrogen reformer technology along with PowerCell’s PS-185 Fuel Cell system for quick charging.

Compared with conventional diesel at equivalent power, this combination of technologies is claimed to offer exhaust emission reductions of more than 70%.

The Wärtsilä carbon capture system and certified green methanol fuel can also be optionally used to attain zero full cycle emission.

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This new barge will also serve as an ‘in-field’ DC charging station for electric harbour tugs and other smaller service vessels.

It will feature an independent ultra-low emission and almost silent 1MW system with 10MW hours of reserve capacity.

This system will be able to deliver fast charging capacity on-demand directly in the operating field of the vessels.

Other features of the barge will include double hull protection of the methanol storage tanks, T1(b) Classification by Lloyd’s Register and Marpol 21.1.2 compliance.

EBDG stated that, with a length of less than 225ft, the barge platform is suitable for use in the world’s busiest ports and tightest harbours.