Ocean Star

70-100 m

500-1000 kWh

One of the main benefits of battery-hybrid propulsion is the ability to optimize the loading of the prime movers for the generators to obtain maximum efficiency and reduce fuel consumption. This is especially beneficial for PSVs which have a typical operational profile that is divided between transit and dynamic positioning station-keeping operations.

Corvus ESS specifications:

Name Ocean Star
Owner Atlantic Offshore
Integrator Wärtsilä
Segment Offshore
Sub-segment Offshore support vessels
Vessel type PSV
Dynamic Positioning DP2
ESS capacity 746 kWh
Corvus product Corvus Orca Energy
Delivery year 2020
Ship yard Fitjar Mekaniske Verksted
Ship design Wärtsilä VS 485 PSV MK III L
Newbuild/Retrofit Retrofit
Vessel size 90.4 x 20 m
Gross tonnage 4800
Deadweight tonnage 5761
IMO no 9667241
Area of Operation UK and Norway offshore sectors
Ship system Hybrid
Bus Voltage 790-1100 VDC
Class LR
Flag state Norway

Estimated annual savings

0 liters

diesel/year saved

0 tons

CO2 emission reduction

Battery operation

Load Levelling

Peak Shaving

Spinning Reserve