MASS ELECTRICITY STORAGE SYSTEM USING SALT WATER, CAPABLE OF RESOLVING THE ELECTRICITY DEMAND AND SUPPLY INSTABILITY OF CENTRALIZED POWER GENERATION

摘要

PURPOSE: A mass electricity storage system using salt water is provided to separate the salt water into high-concentrated salt water and fresh water using surplus electricity in a low load condition and to produce electricity using a concentration difference between the high-concentrated salt water and the fresh water in a peak load condition.;CONSTITUTION: A mass electricity storage system using salt water includes a concentrating unit (106), a concentrated salt water storage unit (110), a fresh water storage unit (108), a salinity difference power generating unit (114), and a salt water storage unit (112). The concentrating unit concentrates and separates the salt water, and feeds concentrated salt water and fresh water. The concentrated salt water storage unit and the fresh water storage unit respectively store the concentrated water and the fresh water from the concentrating unit. The salinity difference power generating unit generates electricity using a concentration difference between the concentrated salt water and the fresh water. The salt water storage unit stores the salt water which has passed through the salinity difference power generating unit, and feeds the salt water to the concentrating unit. The salt water is fed from the salt water storage unit or a salt water feeding source to the concentrating unit.;COPYRIGHT KIPO 2013