| # | Plant | Fuel | Country | MW |
|---|---|---|---|---|
| 1 | Ikata | Nuclear | Japan | 2,022 |
| 2 | Hongawa | Hydro | Japan | 615 |
| 3 | Mishima Mill (Taio) | Oil | Japan | 500 |
| 4 | Saijo power station | Coal | Japan | 406 |
| 5 | Niihama Nishi power station | Coal | Japan | 300 |
| 6 | Nyugawa power station | Coal | Japan | 250 |
| 7 | Niihama Kita thermal power station | Gas | Japan | 150 |
| 8 | Marusumi Paper Ohe Mill power station | Other | Japan | 132 |
| 9 | Ozu power station | Biomass | Japan | 50 |
| 10 | Saijo - Itochu Solar Power Plant | Solar | Japan | 34 |
| 11 | Saijo - Sumitomo Solar Power Plant | Solar | Japan | 23 |
| 12 | Ikata Wind | Wind | Japan | 18 |
| 13 | Funayaotsu | Solar | Japan | 14 |
Method: ranked from open data — capacity & fuel from WRI Global Power Plant Database (CC BY 4.0); CO₂ measured for US EPA GHGRP / EU ETS records and modelled for Climate TRACE records. Sorted server-side; click any column to re-sort. Company-level data only.
Ikata (Japan) ranks #1 with 2,022 mw.
This ranking covers 13 power plants in in Ehime, Japan.
1. Ikata (2,022); 2. Hongawa (615); 3. Mishima Mill (Taio) (500).