The present invention relates to a coast power generation system easily maintained and improved in an environmentally friendly and economical manner. According to the present invention, the coast power generation system comprises: a ship main body floating on the sea; a storage tank installed in the ship main body and stores LPG therein; an evaporator installed in the ship main body and evaporates the LPG received from the storage tank; a turbine installed in the ground, receives the LPG from the evaporator, and generates rotational power by combusting the LPG; an electricity generating unit which includes a power generator generating electricity with the rotational power generated in the turbine; and a connection pipe which has one end part connected with the evaporator and the other end part connected with the electricity generating unit, allowing the LPG to move from the evaporator to the electricity generating unit.
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