Abbreviation for Dual Fuel Diesel Electric, a type of propulsion system used for LNG carriers. DFDE consumes heavy oil and natural gas in a diesel cycle to generate electricity.
This electricity is used to drive the propeller for propulsion of the vessel, as well as to operate equipment for regasification. DFDE has been commonly employed as the main engine for newbuild Floating Storage and Regasification Unit (FSRU) since substantial electricity is required for operating regasification equipment. Powerships® also adopt DFDE to generate electricity for the shoreside.

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