Cruise ships require a lot of power. And rightfully so! As they carry close to 3000 passengers with 500-1000 crew members at any time.
Most of the power of the ship is consumed by the large air-conditioning plant that takes care of passenger comfort in suites and public spaces.
The propulsion plant of cruise ships, consisting of giant synchronous propulsion motors and associated equipment for speed and direction control is a large consumer too .
The tunnel thrusters, both forward and aft,...