The disclosure relates to a self-contained mobile power generator entity (100) comprising: a
biomass fuel inlet (103) configured to allow passage of
biomass fuel feedstock (105) into the power generator unit; a
chopper unit (107) connected to the
biomass fuel inlet and configured to receive the biomass fuel feedstock and produce ignitable pieces of biomass fuel; a fuel dryer unit (109) arranged to receive the produced ignitable pieces (105a) of the biomass fuel and configured to remove excess
moisture from the ignitable biomass fuel pieces in order to produce dried ignitable pieces of biomass fuel; at least one
energy converter unit (113,113a,113b) configured to convert an input
thermal energy, provided by a heat source and a
heat sink, to an output
kinetic energy; a
combustion unit (111), arranged in thermal communication with the at least one
energy converter unit, to provide the heat source to the at least one
energy converter unit; the
combustion unit being configured to receive the dried ignitable pieces of biomass fuel and configured to generate
heat energy by combusting the dried ignitable pieces of biomass fuel; a
heat sink unit (115), arranged in thermal communication with the at least one energy converter, to provide the
heat sink to the at least one energy converter unit and dissipate heat from the at least one energy converter unit; a power generator unit (117,117a,117b) in operational communication with the at least one energy converter unit, and configured to convert the output
kinetic energy received from the at least one energy converter unit to an output electrical power. The disclosure further relates to a method, a computer-implemented method for commencing and controlling an operation of a self-contained mobile power generator entity, a
control system (200), a
computer program product and a
computer program carrier.