Ship to Ship (STS)

SHIP-TO-SHIP (STS) TRANSFER

ship-to-ship (STS) transfer operation is the transfer of cargo between seagoing ships positioned alongside each other, either while stationary or underway. Cargoes typically transferred via STS methods include crude oil, liquefied gas (LPG or LNG), bulk cargo, and petroleum products. The nomenclature STS transfer should be used in reference to
techniques used by civilian merchant vessels, as differentiated from underway replenishment which is the term used by the US Navy for similar, but usually far more complicated, operations between naval vessels while underway.
Most of cargo operations take place between a ship and a land-based terminal. Nevertheless, it sometimes can be useful to transfer cargo from one ship to another in the open sea and this is called a ship-to-ship operation. One vessel will act as the terminal whilst the other one will moor. The receiving ship is called the daughter vessel and the delivering vessel
is called STBL (Ship to be lightered) or Mother vessel.

STS transfer safety

Safety is at the forefront of everything ETN Energy does, operating above industry specified guidelines to maintain its exemplary safety record. We work with our customers to comprehensively review all operational requirements and associated documentation, building up data on the individual elements of STS operations such as the vessels used, the equipment and the locations, so that we can continually review and improve our processes. ETN Energy Co. actively attend forums, promoting openness in the market.

ETN Energy STS transfer experience: