Ship with improved power efficiency

摘要

Provided is a ship with improved power efficiency. The ship includes: a power grid; a power cost generator determining a power cost; a generator connected to the power grid, and interpreting the power cost to autonomously determine whether or not power is generated; an energy storage device connected to the power grid, and interpreting the power cost to autonomously determine whether or not the power is stored; and a load connected to the power grid, and interpreting the power cost to autonomously determine whether or not the power is used.