World's First True Hybrid Tug

March 22, 2007 Seattle-based Foss Maritime has announced that it plans to build the world’s first true hybrid tug boat, a “green” vessel that will significantly reduce harmful nitrogen oxide, particulate matter, sulphur dioxide and carbon emissions. It will also consume less fuel and be quieter than its conventional predecessors. The hybrid tug will look almost identical to the Dolphin-class tug boats pictured, and will match their 5000 horsepower. The hybrid tug’s drive units will be powered by batteries coupled with diesel generators and feature a modified engine room accommodating two 670 horsepower battery packs and two 335 horsepower generators.

The 5,000 horsepower Foss hybrid tug will be primarily used for harbor assist services—moving vessels such as tankers and container ships in and out of the harbor and into their berths.

Officials of the Seattle-based marine services company, which specializes in worldwide marine transportation and logistics, say the project must still gain final board approval.

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