Construction vessel offshore support vessel NB76

crew transferfor wind farmsnot specified

OverviewNB76 is the sister vessel of NB71, built for the consortium of Agalas, Eidesvik and Reach Subsea. NB76 is a construction support vessel designed for construction and maintenance operations at offshore and wind-power sites. The main propulsion uses methanol fuel; the vessel is the shipyard's second unit featuring a methanol fuel concept. The propulsion arrangement is diesel-electric supported by an electrical generator and energy storage batteries. Accommodation capacity is 100 persons including the operational crew. An aluminum helideck (13 t capacity, 26 m diameter) enables crew transfer at sea. The green-oriented design was developed by Norwegian ship designer NSK.

Design and Capabilities

• Equipped with two WROV‑LARS systems for operations in harsh sea conditions
• Knuckle jib crane with Active Heave Compensation (AHC) enabling lifts with 0° relative motion
• Dynamic positioning system DP‑2 with HiPAP for precise station-keeping
• Diesel‑electric propulsion supported by generator sets and 1491 kWh energy storage batteries

Specifications

• Length overall: 99.99 m
• Beam moulded: 21.00 m
• Design draught: 7.50 m
• DWT: 5,000 tonnes
• Battery capacity: 1,491 kWh
• Propulsion: 2 × 2,500 kW (Kongsberg - AZP100-L FP), 1 × 2,000 kW (Kongsberg - TCNS100 - FP)
• Crane: Knuckle jib AHC crane, 150 tonnes at 10 m
• Fuel type: Methanol/Diesel
• Class: Det Norske Veritas
• Flag: Norwegian Maritime Authority (NMA)
• Status: Under construction