| # | Plant | Fuel | Country | MW |
|---|---|---|---|---|
| 1 | Huntly (steam) | Coal | New Zealand | 500 |
| 2 | Huntly power station | Gas | New Zealand | 454 |
| 3 | Huntly (CC) | Gas | New Zealand | 403 |
| 4 | Maraetai | Hydro | New Zealand | 360 |
| 5 | Waikato power station | Gas | New Zealand | 360 |
| 6 | Arapuni | Hydro | New Zealand | 164 |
| 7 | Nga Awa Purua | Geothermal | New Zealand | 140 |
| 8 | Wairakei | Geothermal | New Zealand | 132 |
| 9 | Ohaaki | Geothermal | New Zealand | 122 |
| 10 | mokai | Geothermal | New Zealand | 113 |
| 11 | Ohakuri | Hydro | New Zealand | 106 |
| 12 | Whakamaru | Hydro | New Zealand | 100 |
| 13 | Karapiro | Hydro | New Zealand | 96 |
| 14 | Aratiatia | Hydro | New Zealand | 78 |
| 15 | Atiamuri | Hydro | New Zealand | 74 |
| 16 | Te Uku | Wind | New Zealand | 64 |
| 17 | Huntly (unit 6) | Gas | New Zealand | 60 |
| 18 | Waipapa | Hydro | New Zealand | 54 |
| 19 | Te Rapa | Gas | New Zealand | 44 |
| 20 | Rotokawa | Geothermal | New Zealand | 35 |
| 21 | Te Huka Binary | Geothermal | New Zealand | 28 |
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.
Huntly (steam) (New Zealand) ranks #1 with 500 mw.
This ranking covers 21 power plants in in Waikato, New Zealand.
1. Huntly (steam) (500); 2. Huntly power station (454); 3. Huntly (CC) (403).