Provided is a low-carbon type, highly efficient energy supply system that produces small CO2 emissions. In the low-carbon type energy supply system, an indirect heating type gasification furnace that produces gasification gas using fuel containing at least biomass, a circulating fluidized bed boiler that produces superheated steam using fuel containing at least biomass, a condensing turbine power generation device, a gasification gas utilization device and the like are organically combined and integrated.
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