Business case to convert a Cruise Ship to full electric propulsion

This case study determines what it takes to remove the fuel from a cruise ship, comparing a 50,000 GT ocean cruise ship with an inland river cruise vessel. The ocean cruise ship obtains a payback of around five years, but only with very cheap electricity, battery prices of $150 per kWh, long-term financing and the sale of FuelEU surplus (many caveats!). The river cruise ship is technically easier, but is extremely challenging to make a business case for because EU ETS and FuelEU do not apply to it.