| Scenario | System price per 1 kW (yen/kW) | Solar cell module conversion efficiency (%) | Subside per 1 kW | ||
| National government | Prefecture | Municipality | |||
| 1 | 466,000 | 12 | × | × | × |
| 2 | 466,000 | 12 | ○ | × | ○ |
| 3 | 466,000 | 12 | ○ | ○ | ○ |
| 4 | 466,000 | 15 | × | × | × |
| 5 | 466,000 | 15 | ○ | × | ○ |
| 6 | 466,000 | 15 | ○ | ○ | ○ |
| 7 | 466,000 | 16 | × | × | × |
| 8 | 466,000 | 16 | ○ | × | ○ |
| 9 | 466,000 | 16 | ○ | ○ | ○ |
| 10 | 410,000 | 12 | × | × | × |
| 11 | 410,000 | 12 | ○ | × | ○ |
| 12 | 410,000 | 12 | ○ | ○ | ○ |
| 13 | 410,000 | 15 | × | × | × |
| 14 | 410,000 | 15 | ○ | × | ○ |
| 15 | 410,000 | 15 | ○ | ○ | ○ |
| 16 | 410,000 | 16 | × | × | × |
| 17 | 410,000 | 16 | ○ | × | ○ |
| 18 | 410,000 | 16 | ○ | ○ | ○ |