How Much Electricity Does A Cruise Ship Use

Youll notice that while PortMiami seems generally more expensive than Port Everglades this is not the case for the Oceania Regatta.

How much electricity does a cruise ship use. A large cruise ship ranging in length from 900 to 1100 feet might hold 1 to 2 million gallons of fuel. 80 percent of oceangoing ships now use a diesel-electric transmission system. This moves the ships propeller.

RMS Queen Mary uses 6 tons of marine fuel per hour. This mode of navigation requieres more important energy resources and electrical autonomy. Typical operating conditions would be with the ship in transit at anchor maneuvering etc.

Each stateroom has one electric outlet located at the desk. A Nimitz class supercarrier has more than twice as much power 240000 hp 208 MW as the largest container ship diesel engines ever built and is capable of continuously operating for 20 years. Cruise ships typically use heavy fuel oil in their engines a residual product that is left over after petrol and diesel have been produced.

Many older cruise ships use reciprocating diesel engines to generate power for propulsion. It saves between five and 20 percent of the fuel. So rather than being connected to the propeller shafts the main engines are connected to large generators in order to produce electricity.

But for several years many ships have been partly electrified. Diesel generators generate the electricity which then drives the electric engine. The average consumption for this navigation mode is 245Ah per 24 hours this is corresponding at a daily need about 3000 Wh with 12V batteries.

This may not seem very good mileage at first glance however cruise ships are moving at once thousands of people whereas a car is moving a few. It has very high sulphur content but is more cost. This has many advantages.