380
S. Takeda et al.
24.5 Results and Discussion
Life cycle inventories for 1 kWh of electricity production were calculated for nine
power plants. The GWP (IPCC 2013 Global Warming Potential) indicators for each
power plant are illustrated in Fig. 24.2. The estimated life cycle GHG emissions of
the electricity production from Solar Hybrid BECCS under our baseline scenario
was −0.812 kg CO 2 -eq/kWh of electricity production. This calculated net GHG
reduction amount of −0.812 kg CO 2 -eq per 1 kWh electricity production is a
significant improvement over other comparable power plants. Even compared to
the conventional BECCS plant, a future power plant, Solar Hybrid BECCS showed
a considerably higher carbon removal capability.
The uncertainty was calculated with a Monte-Carlo simulation with 10,000
iterations as Fig. 24.3. Log-normal distrubutions were assumed for the models
in Table 24.3.
Fig. 24.2 Estimated life
cycle GHG emissions of
electricity production
through solar hybrid BECCS
Fig. 24.3 Monte-carlo
simulation result for GWP
for solar hybrid BECCS