Offshore accommodation vessel
Edda Fides is the first floating hotel (flotel) and service vessel in the world to be built exclusively for the offshore oil and gas industry. Delivered in March 2011, she has the capacity to accommodate up to 600 people offshore and a maximum of 1,000 people while tied to a pier.
The vessel registered in Malta is owned by Naviera Arnela. Offshore supply vessels operator Ostensjo Rederi is the operator. The vessel is marketed under ‘Edda Accommodation’, a brand owned by Ostensjo Group. Construction cost of the vessel was approximately €150m.
Key contractors and suppliers for Edda Fides
Spanish shipbuilder Astillero Barreras, located in Vigo, was contracted in July 2007 for the construction of the offshore accommodation vessel. Global ship design group Vik-Sandvik, which was acquired by Wartsila in July 2008, was the designer of the vessel.
Construction commenced in November 2008 and the vessel was launched in March 2010. Naming ceremony for the vessel was held in March 2011 in Vigo.
Wartsila was ordered in 2006 to supply six generating sets and other auxiliary equipment and automation. The company was again contracted in June 2008 to supply six nitrogen oxides reducer (NOR) units for the vessel.
An integrated navigation system was supplied by automation and navigation systems supplier L-3 Vamarine, an affiliate of SAM Electronics. HVAC (heating, ventilation and air conditioning) systems were supplied by Novenco Marine & Offshore. Bespoke gangway was supplied by Offshore Solutions (OSBV).
Design features and technical specifications of the Maltese vessel
Edda Fides is a mono hull ship built in accordance with DNV’s ‘Clean Design’ notation. The environmentally friendly ship is provided with sewage treatment facilities for black and grey water. The outer hull of the vessel has been kept free of oil and fuel tanks.
Some of the interesting design features of the vessel include the use of a DP 3 positioning system driven by Voith Scheider propellers (VSP) and the use of a heave compensated offshore access / gangway system.
Compared to conventional propulsion system, the VSP offers 20% reduction in fuel consumption and harmful gas emissions.
The hydraulically operated gangway is designed to operate in a significant wave height of 5m. This enables the vessel to be connected with the gangway for more than 90% of the time during operation. For optimum flexibility, the gangway is positioned at the front portion of the vessel.
The vessel has a deck area of 1,400m² including a 240m² covered work shop area. The vessel’s helicopter deck is suitable for the operations of an S-61 or S-92. There is a helicopter refuelling plant onboard the vessel.
The 7,500t accommodation vessel has an overall length of 130m and length between perpendiculars of 119.50m. Moulded breadth and depth to main deck are 270m and 9.40m respectively. Design draught is 7m, while scantling draught is 7.20m.
Accommodation and facilities onboard the flotel
Edda Fides is furnished with state-of-the-art accommodation facilities and is designed to accommodate 600 people in 310 cabins.
Accommodation capacity can be increased to 1,000 beds when operating inshore.
Recreation areas onboard the vessel include a sweat room, exercise room, swimming pool, library and a film theatre. There are also television / DVD players, internet connection, satellite communication, conference rooms and offices for clients.
The vessel is equipped with one knuckle boom crane and two marine deck cranes, each rated for 15t SWL at 20m outreach.
Ship equipments include a DP3 dynamic positioning system with three reference systems, a joystick and selective catalytic reduction (SCR) converters for treatment of exhaust gas.
Power and propulsion of the Edda Fides flotel
Edda Fides is equipped with six Wartsila 9L26 main generating sets and the electric propulsion package features a Wartsila patented low loss concept (LLC) system. Each of the main generating sets is capable of producing 2,925kW at 900rpm. The vessel is also outfitted with an emergency generator set.
The vessel is propelled by five Voith Schneider propulsion units, each rated at 2,500kW. Three of them are fitted aft and the other two are fitted forward of the vessel.
Two tunnel thrusters, each of 1,400kW, are positioned forward for smooth manoeuvring.