NOVELTY - The system (100) has a cathode compartment (102), which is partitioned into a first cathode electrolyte compartment (104) and a second cathode electrolyte compartment (106) by a partition (103). A cathode electrolyte (108) in the second cathode electrolyte compartment is in contact with a cathode (110). Anode electrolyte (115) in an anode compartment (112) is in contact with an anode (114). The cathode electrolyte in the first cathode electrolyte compartment contacts cathode electrolyte in the second cathode electrolyte compartment.    USE - Electrochemical system for electrical power generating plants and cement plants.    ADVANTAGE - Operation of electrochemical cell with cathode power of hydrogen (pH) at greater than or equal to 7 provides a significant energy savings. Membranes are functioning in an acidic and/or basic electrolytic solution and exhibit high ion selectivity, low ionic resistance, high burst strength, and high stability in an acidic electrolytic solution in specified temperature range. System utilizes off-peak power to produce a base solution in the cathode electrolyte at a relatively lower cost, since the cost of off-peak power is lower than the cost of power supplied during peak power-supply times. Hydroxide ions generated in the cathode electrolyte is prevented from migrating out of the cathode electrolyte through the cation exchange membrane. Voltage across the anode and cathode is minimized, thus minimizing the use of electrical energy. Mixing of carbon dioxide gas with other gases in the system is avoided.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an electrochemical method.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic block diagram of an electrochemical system.    Electrochemical system (100)    Cathode compartment (102)    Partition (103)    First cathode electrolyte compartment (104)    Second cathode electrolyte compartment (106)    Cathode electrolyte (108)    Cathode (110)    Anode compartment (112)    Anode (114)    Anode electrolyte (115)