An electrical power generation system comprising: at least one fuel supply device, at least one gasifier, the gasifier being connected to at least one supply fluid generation unit of an electrical power generation device, a waste product disposal circuit being further provided, a control unit being provided, for controlling the operation of at least one of the components of the system, the control unit including a detection system for detecting parameters indicative of the operation of one or more components of the system as well as processor means for processing data obtained by said detection system, being the processor means adapted to execute a logic program, whose execution allows automatic control of the operation of at least one of the components of the system, the gasifier comprising an outer body that delimits a combustion chamber, said combustion chamber comprising at least one grate upon which fuel is placed, at least one fuel input compartment being provided below the grate and flame ignition means, at least one outlet port being provided in said combustion chamber for exhausting the gases so obtained, primary air inlet members being provided for introducing air into the combustion chamber below the grate, characterized in that a plurality of holes are formed in the thickness of the walls of the combustion chamber, secondary air inlet members being provided for introducing air into the combustion chamber above the grate through said one or more holes, secondary air flow adjustment means being further provided, said adjustment means comprising closing/opening means for closing/opening said holes, each hole being adapted to be opened/closed independently of the others, to change the amount of secondary air introduced into the combustion chamber, said holes being arranged along the walls of the combustion chamber at least at two different heights relative to said grate and at least at two different angles relative to the axis of the outlet port. at least one fuel supply device, at least one gasifier, the gasifier being connected to at least one supply fluid generation unit of an electrical power generation device, a waste product disposal circuit being further provided, a control unit being provided, for controlling the operation of at least one of the components of the system, the control unit including a detection system for detecting parameters indicative of the operation of one or more components of the system as well as processor means for processing data obtained by said detection system, being the processor means adapted to execute a logic program, whose execution allows automatic control of the operation of at least one of the components of the system, the gasifier comprising an outer body that delimits a combustion chamber, said combustion chamber comprising at least one grate upon which fuel is placed, at least one fuel input compartment being provided below the grate and flame ignition means, at least one outlet port being provided in said combustion chamber for exhausting the gases so obtained, primary air inlet members being provided for introducing air into the combustion chamber below the grate, characterized in that a plurality of holes are formed in the thickness of the walls of the combustion chamber, secondary air inlet members being provided for introducing air into the combustion chamber above the grate through said one or more holes, secondary air flow adjustment means being further provided, said adjustment means comprising closing/opening means for closing/opening said holes, each hole being adapted to be opened/closed independently of the others, to change the amount of secondary air introduced into the combustion chamber, said holes being arranged along the walls of the combustion chamber at least at two different heights relative to said grate and at least at two different angles relative to the axis of the outlet port.