< 20 m

< 200 kWh

Since one litre of diesel produces more than 2.5 kg of CO₂, the combined carbon emissions from global fishing operations are huge. Built in 2015, Karoline was the first hybrid fishing vessel equipped with two battery packs of 195kWh as well as a 500-litre diesel engine, which together power the vessel for a full day. Running on diesel to and from the fishing grounds, Karoline switches to electricity for fishing, loading and unloading. It runs electric-only for almost three hours every day, and the batteries are fully recharged in port overnight. The boat’s electrical supply has proven faultless after years of operation.

Corvus ESS specifications:

Name Karoline
Owner ØRA AS / Bent Gabrielsen
Integrator Siemens
Segment Fishing and Aquaculture
Sub-segment Fishing
Vessel type Small Fishing Vessel
ESS capacity 195 kWh
Delivery year 2015
Ship yard Selfa Arctic
Ship design Selfa
Newbuild/Retrofit Newbuild
Vessel size 11 x 4,2 m
Gross tonnage 95
Area of Operation Northern Norway
Ship system Hybrid
Bus Voltage 580-750
Flag state Norway

Estimated annual savings


Maintenance cost

0 liters

diesel/year saved

0 tons

CO2 emission reduction

Battery operation

Peak Shaving

Zero Emissions Operations

Karoline – The first hybrid electric fishing vessel enabling zero-emission fishing operations has batteries from Corvus Energy.