Research Article
Quantitative Analysis of Japan’s Energy Security Based on Fuzzy Logic: Impact Assessment of Fukushima Accident
Table 15
The result of Fuzzy-DEMATEL analysis for all indicators of energy security (Case
).
| Dimension | All indicators | | | | |
| Availability | Self-sufficiency (AV1) | 0.61 | 0.97 | 1.58 | −0.32 | Oil stock (AV2) | 0.54 | 0.37 | 0.92 | 0.15 | Share of renewables in total electricity supply (AV3) | 1.06 | 0.66 | 1.73 | 0.36 | TPES (AV4) | 0.94 | 0.59 | 1.53 | 0.31 | Total installed electricity generation capacity (AV5) | 0.67 | 0.84 | 1.50 | −0.15 |
| Accessibility | Dependency on Middle East oil (AS1) | 0.63 | 0.63 | 1.26 | 0.00 | The effort to promote renewable energies (AS2) | 1.30 | 0.95 | 2.23 | 0.34 | The effort to promote independently developed energy resources (AS3) | 0.86 | 0.78 | 1.63 | 0.07 | Human resources for nuclear energy (AS4) | 0.74 | 0.72 | 1.46 | 0.03 | The difficulty in operating nuclear power station (AS5) | 1.41 | 0.62 | 2.05 | 0.74 |
| Affordability | Fuel cost of electric companies (AF1) | 0.52 | 0.97 | 1.49 | −0.40 | Electricity price (AF2) | 0.37 | 0.70 | 1.07 | −0.28 | Market price of LNG (AF3) | 0.78 | 0.41 | 1.20 | 0.33 | Trade balance (AF4) | 0.24 | 1.16 | 1.45 | −0.80 | Economic growth ratio (AF5) | 0.65 | 0.72 | 1.37 | −0.05 |
| Acceptability | Consumption of fossil fuels (AP1) | 1.29 | 0.97 | 2.23 | 0.31 | CO2 emission from energy sources (AP2) | 0.56 | 1.11 | 1.68 | −0.50 | Radioactive waste (AP3) | 0.89 | 0.68 | 1.56 | 0.19 | Supporting ratio for nuclear energy (AP4) | 0.93 | 1.21 | 2.13 | −0.26 | Voice and accountability (AP5) | 0.65 | 0.65 | 1.30 | 0.00 |
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