Abstract—This paper discusses the utilization of marine biomass
as an energy resource in Japan. A marine biomass energy system in
Japan was proposed consisting of seaweed cultivation (Laminaria
japonica) at offshore marine farms, biogas production via methane
fermentation of the seaweeds, and fuel cell power generation driven by
the generated biogas.
We estimated energy output, energy supply
potential, and CO2 mitigation in Japan on the basis of the proposed
system. As a result, annual energy production was estimated to be
1.02×109 kWh/yr at nine available sites. Total CO2 mitigation was
estimated to be 1.04×106 tonnes per annum at the nine sites. However,
the CO2 emission for the construction of relevant facilities is not taken
into account in this paper. The estimated CO2 mitigation is equivalent
to about 0.9% of the required CO2 mitigation for Japan per annum
under the Kyoto Protocol framework.
Keywords—CO2 mitigation, Fuel cell power generation,
Laminaria japonica, Marine biomass, Seaweed.
potential, and CO2 mitigation in Japan on the basis of the proposed
system. As a result, annual energy production was estimated to be
1.02×109 kWh/yr at nine available sites. Total CO2 mitigation was
estimated to be 1.04×106 tonnes per annum at the nine sites. However,
the CO2 emission for the construction of relevant facilities is not taken
into account in this paper. The estimated CO2 mitigation is equivalent
to about 0.9% of the required CO2 mitigation for Japan per annum
under the Kyoto Protocol framework.
Keywords—CO2 mitigation, Fuel cell power generation,
Laminaria japonica, Marine biomass, Seaweed.
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