NOVELTY - The system (10) has a pyrolysis module (510) arranged between a drying module (400) and a shipping pallet. A reactor module (550) is coaxially aligned with the pyrolysis module. An in-line alternator (850) and an engine (810) are located in corners of the pallet. A first heat exchanger (420) is coupled to an outlet of the reactor module. A second heat exchanger (520) is coupled to an exhaust of the engine and the pyrolysis module. A third heat exchanger (560) couples the outlet of the reactor module to the first heat exchanger, and is connected to an air inlet for the reactor module.    USE - Gasification based power generation system for converting carbonaceous material e.g. biomass material such as wood material, plants material and algae material, biodegradable waste material generated by a plant or animal and coal material, into electrical power in a power generation field.    ADVANTAGE - The system is arranged to leverage gravity for transferring of fuel precursors to different processing modules and various waste heat streams to recapture waste heat from a gasifier and an engine output, thus improving gasifier performance and reducing component count by cooling a gasifier output without a dedicated cooling module. The system facilitates airlock arrangement to allow a body of the gasifier to hold an air seal, while allowing a hopper to be open to ambient atmosphere such that airflow within the body of the gasifier can be controlled to permit the hopper to be collapsible, thus permitting transportation in an easy manner, eliminating a need for airtight installation of a new hopper, allowing hopper volume to be easily changed and the carbonaceous material for pre-drying to ambient environment to remove moisture from the system, and hence reducing moisture introduction into the reactor module and preventing thermal drag on reactor temperature.    DETAILED DESCRIPTION - The shipping pallet is one of a International organization for standardization (ISO) standard pallet or north american standard pallet. The alternator is one of a 10-Kilowatt alternator, a 20-Kilowatt alternator and a 100-Kilowatt alternator.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of variation of a power generation system.    Gasification based power generation system (10)    Drying module (400)    Heat exchangers (420, 520, 560)    Pyrolysis module (510)    Reactor module (550)    Engine (810)    In-line alternator (850)