ShipCalculators.com

Green Cruise Ship

E4. Cruise, offshore energy and auxiliary/specialised fleets

Definition

LNG/dual-fuel or hybrid cruise vessel.

A cruise ship designed to cut air emissions through LNG dual-fuel or methanol engines, battery-hybrid power, shore-power connection, and exhaust treatment, meeting MARPOL Annex VI sulphur (Reg.14, 0.50 percent global cap since 1 January 2020) and NOx Tier III limits. LNG cuts SOx to near zero but carries methane slip; AIDAnova (2018) was the first LNG-powered cruise ship. Many add cold-ironing to draw shore power at berth and run an EEDI/EEXI energy-efficiency design index within MARPOL Annex VI.

Source: MARPOL Annex VI Reg.14 (0.50% sulphur cap, 1 January 2020) and Reg.13 (NOx Tier III)