Japan has 18594 power plants totalling 222,498 MW and 75,085 km of power lines mapped on OpenStreetMap.
| Source | Output | Count |
|---|---|---|
| gas | 82,308 MW | 75 |
| coal | 43,588 MW | 73 |
| nuclear | 41,889 MW | 19 |
| oil | 29,524 MW | 32 |
| hydro | 20,235 MW | 673 |
| solar | 2,640 MW | 17277 |
| biomass | 958 MW | 39 |
| wind | 541 MW | 29 |
| geothermal | 494 MW | 17 |
| waste | 107 MW | 27 |
| battery | 90 MW | 2 |
| [unspecified] | 76 MW | 328 |
| diesel | 40.50 MW | 2 |
| biofuel | 6.25 MW | 1 |
| All | 222,498 MW | 18594 |
If multiple sources are listed for a power plant, only the first source is used in this breakdown.
Show plants under construction
| Voltage | Length | Percentage |
|---|---|---|
| 0 V – 9 kV | 140 km | 0.2% |
| 10 kV – 24 kV | 452 km | 0.6% |
| 25 kV – 51 kV | 1,243 km | 1.7% |
| 52 kV – 131 kV | 29,418 km | 39.2% |
| 132 kV – 219 kV | 13,416 km | 17.9% |
| 220 kV – 329 kV | 11,443 km | 15.2% |
| 330 kV – 549 kV | 8,827 km | 11.8% |
| 550 kV – | 0 m | 0.0% |
| No voltage tagged | 10,146 km | 13.5% |
| Total | 75,085 km | 100.0% |
Stats updated 2026-05-23