A fuel cell power system, comprising: a plurality of fuel cell stacks; a plurality of power converters each located at an output of a different one of each of the stacks; a plurality of current sensors each located at an input of each of the power converters, each of the current sensors being configured to determine a current; a plurality of voltage sensors each located at the input of the each power converter, each of the voltage sensors being configured to determine a voltage; and a computing device configured to: set one or more parameter values of one of the power converters located at the output of one of the plurality of stacks such that the one stack preferentially provides power to a load; determine a heat power of the one stack and of one or more other stacks of the plurality of stacks, each of the heat powers being determined based on the voltage and the current that are determined at the input of the respective power converter; determine whether the heat power of the one stack satisfies a criterion; and responsive to a determination that the heat power of the one stack satisfies the criterion, set one or more parameter values of each of the power converters located at the output of the one or more other stacks such that the determined heat power of each of the one or more other stacks more closely matches the determined heat power of the one stack. comprising: a plurality of fuel cell stacks; a plurality of power converters each located at an output of a different one of each of the stacks; a plurality of current sensors each located at an input of each of the power converters, each of the current sensors being configured to determine a current; a plurality of voltage sensors each located at the input of the each power converter, each of the voltage sensors being configured to determine a voltage; and a computing device configured to: set one or more parameter values of one of the power converters located at the output of one of the plurality of stacks such that the one stack preferentially provides power to a load; determine a heat power of the one stack and of one or more other stacks of the plurality of stacks, each of the heat powers being determined based on the voltage and the current that are determined at the input of the respective power converter; determine whether the heat power of the one stack satisfies a criterion; and responsive to a determination that the heat power of the one stack satisfies the criterion, set one or more parameter values of each of the power converters located at the output of the one or more other stacks such that the determined heat power of each of the one or more other stacks more closely matches the determined heat power of the one stack. set one or more parameter values of one of the power converters located at the output of one of the plurality of stacks such that the one stack preferentially provides power to a load; determine a heat power of the one stack and of one or more other stacks of the plurality of stacks, each of the heat powers being determined based on the voltage and the current that are determined at the input of the respective power converter; determine whether the heat power of the one stack satisfies a criterion; and responsive to a determination that the heat power of the one stack satisfies the criterion, set one or more parameter values of each of the power converters located at the output of the one or more other stacks such that the determined heat power of each of the one or more other stacks more closely matches the determined heat power of the one stack.