.TransiEnt.Producer.Gas.Electrolyzer.Base.Physics.Voltage.V_cell1.V_concentration .TransiEnt.Producer.Gas.Electrolyzer.Base.Physics.Voltage.V_cell1.V_concentrationmodel V_concentration = TransiEnt.Producer.Gas.Electrolyzer.Base.Physics.Voltage.ConcentrationVoltageModels.V_conc1;