ENGINE POWER GENERATION SYSTEM CONTROL DEVICE

There is provided an engine power generation system control device that reduces emission of a harmful substance contained in an exhaust gas to the outside by performing prompt activation of an exhaust purification catalyst and prompt warmed-up of an engine in a power generation system including an engine enabling an RE fuel and a hydrocarbon-based fuel to be supplied and performing co-combustion. A hydrocarbon-based fuel supply amount or a hydrogen supply amount to the engine is controlled based on a catalyst active state detected by a catalyst active state detecting unit and a warmed-up state of the engine detected by an engine warmed-up state detecting unit.