TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred System: The integrated biomass gasification system further includes a combustor and a turbine in flow communication with the gasification reactor; a hot screw conveyor coupled to the gasification reactor; and a combustor in flow communication with the gasification reactor and a heat exchanger in flow communication with the combustor.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The method (M1) further involves drying the biomass material using a dryer; contacting the biomass material with at least one of turbine exhaust and combustor exhaust; heating the charcoal with at least one of turbine exhaust and combustor exhaust; heating the charcoal with outer walls of the hot screw conveyor; and heating the charcoal with steam generated by the heat exchanger. The method (M2) involves gasifying dried biomass material in a gasification reactor of an integrated biomass gasification system to produce a stream of charcoal and producer gas; separating the charcoal from the producer gas of the stream using a hot screw conveyor; combusting the producer gas using a combustor to generate hot exhaust gases; and activating the charcoal using heat from the hot exhaust gases. The method (M2) further involves combusting the producer gas in a combustor to generate combustor exhaust, where the charcoal is activated by heating the charcoal with the combustor exhaust; and heating the charcoal with turbine exhaust. In the method (M2), the step of activating the charcoal involves heating the charcoal with the producer gas at 500 degrees C, where the step of activating occurs subsequent to separating the charcoal from the producer gas. The step of activating the charcoal involves heating the charcoal at at least 400 degrees C. The step of combusting the producer gas involves generating combustor exhaust and turbine exhaust, where the combustor exhaust and the turbine exhaust are combined to generate the hot exhaust gases. The step of activating the charcoal involves heating the charcoal without the use of an external heat source. The method (M1) and (M2) further involves sun-drying the biomass material. In the method (M1) and (M2), the step of activating the charcoal involves heating the charcoal at 400-1100 degrees C. EXAMPLE - No suitable example is given.