Top plants
| Plant | Country | Fuel | Owner | MW | CO2 t/yr |
|---|---|---|---|---|---|
| Manapouri | New Zealand | Hydro | Meridian Energy | 800 | n/a |
| Ohau A | New Zealand | Hydro | Meridian Energy | 688 | n/a |
| Stratford power station | New Zealand | Gas | Contact Energy Ltd [100%] | 587 | 925,582 |
| Benmore | New Zealand | Hydro | Meridian Energy | 540 | n/a |
| Huntly (steam) | New Zealand | Coal | Genesis Energy | 500 | 2,190,000 |
| Huntly power station | New Zealand | Gas | Genesis Energy Ltd [100%] | 454 | 715,867 |
| Clyde | New Zealand | Hydro | Contact Energy | 432 | n/a |
| Huntly (CC) | New Zealand | Gas | Genesis Energy | 403 | 635,450 |
| Maraetai | New Zealand | Hydro | Mercury Energy | 360 | n/a |
| Aviemore | New Zealand | Hydro | Meridian Energy | 220 | n/a |
| Tekapo | New Zealand | Hydro | Genesis Energy | 179 | n/a |
| Arapuni | New Zealand | Hydro | Mercury Energy | 164 | n/a |
| Whirinaki | New Zealand | Oil | Contact Energy | 155 | 305,505 |
| West Wind | New Zealand | Wind | Meridian Energy | 143 | n/a |
| Nga Awa Purua | New Zealand | Geothermal | Mercury Energy | 140 | n/a |
| Wairakei | New Zealand | Geothermal | Contact Energy | 132 | n/a |
| Ohaaki | New Zealand | Geothermal | Contact Energy | 122 | n/a |
| mokai | New Zealand | Geothermal | Mercury Energy | 113 | n/a |
| Glenbrook power station | New Zealand | Gas | Alinta Energy Pty Ltd [100%] | 112 | 176,602 |
| Ohakuri | New Zealand | Hydro | Mercury Energy | 106 | n/a |
What changes this answer from a template?
Fuel mix: Hydro 24, Gas 9, Wind 7, Geothermal 7. Regions: Waikato (20), Otago (7), Taranaki (5), Canterbury (4). Owners: Mercury Energy (12), Meridian Energy (10), Trustpower (8), Genesis Energy (7).
GSC showed 105 impressions for related PowerAtlas queries; examples: power plant, geothermal, geothermal nz.
Frequently asked questions
What are the largest power plants in New Zealand?
This PowerAtlas slice contains 49 plants with 8,101 MW of combined capacity. 11 plants have asset-level CO2 values: 0 measured and 0 modelled. The largest visible unit in this slice is Manapouri at 800 MW.
Which fuels and owners dominate this slice?
Fuel mix by plant count: Hydro 24, Gas 9, Wind 7, Geothermal 7. Leading owner/operator labels: Mercury Energy (12), Meridian Energy (10), Trustpower (8), Genesis Energy (7).
How is this answer sourced?
Plant identity and capacity come from WRI GPPD / Global Energy Monitor; CO2 provenance is labelled as regulator-measured, modelled or unavailable on each plant page.
Methodology
This answer page is generated only when the slice has enough underlying plant records and passes the hub demand/data gate. It is not a separate source of truth; each table row links back to the underlying plant record and provenance labels.