A fuel cell module includes a fuel cell stack configured to produce an electrical output, power electronics circuitry configured to convert the electrical output of the fuel cell stack into a regulated output of the fuel cell module, module control electronics circuitry configured for communications within the fuel cell module and further configured for communications with master control electronics circuitry external to the fuel cell module, and a structure configured to connect together the fuel cell stack, the power electronics circuitry and the module control electronics circuitry as part of the fuel cell module that is unitary, and further configured for the unitary fuel cell module to be insertable as a unit into a multi-module system chassis.