Table 4 Qingdao Port hydrogen-powered yard cranes phased construction investment decision option.
Option | Timing and scale of investment decisions (unit) | Investment scale | Final scale | ||
|---|---|---|---|---|---|
2021–2025 | 2026–2030 | 2031–2035 | |||
Option 1 | 0 | 0 | 0 | 0 | 6 |
Option 2 | 0 | 0 | 12 | 12 | 18 |
Option 3 | 0 | 12 | 0 | 12 | 18 |
Option 4 | 12 | 0 | 0 | 12 | 18 |
Option 5 | 0 | 12 | 14 | 26 | 32 |
Option 6 | 12 | 0 | 14 | 26 | 32 |
Option 7 | 12 | 14 | 0 | 26 | 32 |
Option 8 | 12 | 14 | 8 | 34 | 40 |
