VESSEL REVIEW | Haloygen – Compact hybrid workboat to support fish farming in northern Norway

Norwegian aquaculture support specialist Håløy Havservice recently took delivery of a new fish farm workboat built by local shipyard Sletta Verft and designed by Møre Maritime.

Håløygen will be operated in support of Håløy Havservice’s customers in the Sør-Troms district in northern Norway. The design is optimised for heavy-duty use, even in fish farms in exposed coastal and offshore waters. The monohull arrangement permits ease of navigation.

Hybrid propulsion for greater operational flexibility

The newbuild has a steel hull, a length of 19.9 metres (65.3 feet), a beam of 10.6 metres (34.8 feet), a draught of four metres (13 feet), and a hybrid electric propulsion setup consisting of a Corvus Energy 1,000kWh battery pack, DI13 and DU16 diesel engines from Scania, HCM 534F2 and HCM 634G2 generators from Stamford, 374kW and 180kW electric motors from Siemens, and PMH Norway SG-4000 and STR-80-250 side thrusters. The propulsion drives a Nogva Heimdal propeller and gearbox arrangement to deliver a bollard pull of just over 14 tonnes.

For fish farm support, the vessel relies on two Palfinger Marine knuckle boom cranes fitted on the deck and a lock plate holder, winches and guide pins from MB Hydraulikk. Certex meanwhile supplied the anchors and chains while Gurskoy provided the gangway. Elmarin undertook the electrical installations in addition to supplying the vessel’s alarms, automation systems, and navigation and communications equipment.

R&M Ship Interior was responsible for work on the interiors, which also feature Wangsmo ventilation fans in the engine room, Allweiler pumps, Brødrene Dahl valves, Aure Rør pipe installations, Roxtec and CSD Sealing Systems cable and pipe transits, an HL Skjong high-pressure washer, Jets toilets, an Atlas Copco compressor, and a Johnson Controls fixed fire suppression system. Space is also available for two liferafts from Viking Life-Saving Equipment.

Bohamet provided the vessel’s windows, which are fitted with Decca wipers. Carboline paint was used for the external surfaces while the hull boasts cathodic protection from MPE Cathodic.

Part of a growing fleet of low-emission aquaculture support vessels

Construction of Håløygen was partly funded by the Norwegian government via state financing agency Enova, which has been assisting in the procurement of electric propulsion systems for both new and existing vessels operating in Norwegian waters. The owner expects that the new workboat will help ensure lower operational costs and a reduced environmental impact compared to similar-sized vessels fitted with conventional propulsion systems.

Håløygen is the second vessel to be delivered by Sletta Verft to the same owner following the slightly larger, 2022-built hybrid workboat Håløy Jarl.