turbine 24 d and 54 d is supplied to organic working fluid condensers 27 d and 57 d respectively so that organic working fluid condensate produced therein is supplied via for example pump 29 d or 59 d to boilers 23 d and 53 d when one of systems 20 d and 50 d begins to reduce its power output control line 28 d or 58 d senses the drop in the power output of one of electric generators 26 d or 56 d and one of controls 30 d or 60 d supplies a control signal to one of control valves 25 d and 55 d so that these valves are opened consequently sufficient organic working fluid is now supplied to one of organic turbines 24 d and 54 d so that one of electric generators 26 d and 56 d produces full power once the other organic rankine cycle turbine system either 20 d or 50 d returns to half power or half load capacity line 28 d or 58 d senses the increase in the power output of the respective electric generator 26 d and 56 d and thus a control signal is supplied by control 30 d or 60 d to the respective control valve 25 d and 55 d so that this valve is now closed ensuring that only sufficient organic working fluid vapor is supplied to the respective organic turbine 24 d and 54 d in order that half power or half load capacity is now produced by the organic turbine thus according to the embodiment of the present invention described with reference to fig5 due to the pressure of high pressure in boilers 23 d and 53 d no battery.