‘Greenest AHTS in the World’
The naming ceremony of the Havila Venus – the ‘greenest AHTS in the World’ – took place in in Fosnavåg, Norway on Saturday 17 October 2009. Havila Venus is a Havyard designTM, type Havyard 845. This vessel is with its state-of-the-art hybrid propulsion system, modern hull lines, Clean Design Class and exhaust catalysts, one of the most environmentally friendly AHTS in the market.
Havyard 845 is a large AHTS with a power station of 18,000 kW which via an advanced hybrid propulsion system provides high bollard pull, excellent ability for station keeping and ability to carry out advanced operations in extreme conditions.
The hybrid system is the most advanced and environmentally friendly on the market today and is super economic in all of the vessels operating conditions. In transit from A to B the power requirement is low compared to the vessels total power resource. In DP mode for subsea operations in deep water the power requirement will vary, while demanding anchor handling operations will periodically require all available power.
The power station consists of two larger and four smaller diesel generator sets. The hybrid system enables optimizing of different combinations of diesel mechanic and diesel electric drive. Advanced systems control the generator sets’ operating conditions for minimizing fuel consumption and emissions of NOx and CO2. The advanced hybrid system on a Havyard 845 operates with 10-15 % lower fuel consumption than other solutions in the market today.
Powerful 500 t AHT winches and equipment for safe anchor handling make Havila Venus a safe working place with superior capacities for anchor handling and towing operations. Launch and recovery system (LARS) for operation of ROVs over shipside in combination with A-frame on the stern enables the vessel to perform advanced subsea operations down to 3,000 m.
Principal particulars for Havyard 845 Havila Venus:
Length: 92 m
Breadth: 22 m
Depth to main deck: 9 m
Speed: Approx. 18 knots
Bollard Pull: Approx. 275 t
Power station: Approx. 18,000 kW
AHT winch: 500 t
Accommodation: 60 persons
The vessel is designed by Havyard Design AS in Fosnavåg, Norway. In addition to the Havyard 845, Havyard Design AS has developed several types of AHTS, PSV, subsea maintenance vessels, diving vessels and construction vessels. Several vessels of different types of Havyard designTM are under construction at shipyards in Norway, India, China and Singapore.
Havila Venus is built at Havyard Group’s shipyard Havyard Leirvik AS in Sogn, Norway. The shipyard has further five vessels under construction, last delivery in 2011.