How to decarbonize your ship - general cargo ship with battery hybrid

Make a business case for a battery pack to power your general cargo ship while at berth

This case study examines a general cargo ship with an auxiliary engine of 116 kW that is outfitted with a battery to make it a ‘battery hybrid’ while at berth. The battery pack powers the ship for several hours while idling or moored and is recharged using the auxiliary engines. Cost savings generally occur with an average engine load below 50%, but are mostly dependent on engine maintenance costs, spares and consumables as well as total battery pack costs. This case study is powered by our preferred partner Royal Roos, who can support you with the engineering and refitting required to install a battery pack on board your vessel. Use the Battery Hybrid Single Engine Tool to make your own business case.

  • The case study is called ‘General Prius’. Average engine load is assumed 18% while idling, resulting in an average power demand of ~20 kW.

  • A CO2 reduction of 100% is achieved while the engine is turned off (evidently) but overall CO2 reduction is 30% because the battery pack needs to be recharged by the aux. engine itself.

  • CAPEX costs are estimated at €150k, but depend heavily on battery cell price, inclusion of manhours as well as vessel conversion required.

  • OPEX is reduced by over 50%, mainly because of engine maintenance savings, thereby achieving annual savings in the order of €20k-€30k. It is recommended to investigate a leasing or rental construction to negate CAPEX-out and still benefit from a clean, silent ship while at berth.


 
 

Download Tool

Save and optimize your premium business case, access more customization options and input your actual operational profile.

Battery Hybrid Single Engine Tool
sale
Quick View

You might also like

Previous
Previous

How to decarbonize your ship - battery hybrid + varying engine load

Next
Next

Impact of FuelEU Maritime on shore power business case