3-6-4　バイオマス炭素源の可能性

抄録

In Hirioshima Scenario, where large suppression of carbon dioxide emission in 2050 is considered, biomass utilization is expected to cover energy use that cannot be supplied by renewable electricity including photovoltaic and wind turbine. Biomass utilization after feed-in tariff should be considered because its cost is still high, and without feed-in tariff, feasibility of the biomass system cannot be assured. Considering that photovoltaic and wind turbine electricity is getting cheaper, power generation from biomass may not be needed. However, electricity from photovoltaic and wind turbine cannot replace fossil fuel use for coke for steel making, jet fuel, and bioplastic. The requirement of the amount of carbon to be supplied to these use and that can be supplied from biomass is compared and discussed.