Power mix by fuel (New Zealand)
Plant counts by primary fuel, WRI Global Power Plant Database (CC BY 4.0).
New Zealand electricity grid — mix & carbon intensity (2025)
93gCO₂/kWh grid intensity
88.5%low-carbon electricity
88.5%renewables
11.5%fossil fuels
Source: Ember / Our World in Data (CC BY 4.0).
Largest plants in New Zealand
| # | Plant | Fuel | MW |
|---|---|---|---|
| 1 | Manapouri | Hydro | 800 |
| 2 | Ohau A | Hydro | 688 |
| 3 | Stratford power station | Gas | 587 |
| 4 | Benmore | Hydro | 540 |
| 5 | Huntly (steam) | Coal | 500 |
| 6 | Huntly power station | Gas | 454 |
| 7 | Clyde | Hydro | 432 |
| 8 | Huntly (CC) | Gas | 403 |
| 9 | Maraetai | Hydro | 360 |
| 10 | Aviemore | Hydro | 220 |
| 11 | Tekapo | Hydro | 179 |
| 12 | Arapuni | Hydro | 164 |
| 13 | Whirinaki | Oil | 155 |
| 14 | West Wind | Wind | 143 |
| 15 | Nga Awa Purua | Geothermal | 140 |
| 16 | Wairakei | Geothermal | 132 |
| 17 | Ohaaki | Geothermal | 122 |
| 18 | mokai | Geothermal | 113 |
| 19 | Glenbrook power station | Gas | 112 |
| 20 | Ohakuri | Hydro | 106 |
Browse by fuel
Power plants in New Zealand by region
Frequently asked questions
How many power plants are in New Zealand?
There are 49 current or operating power-plant records in New Zealand in this open dataset, with about 8,101 MW of capacity. Historical and pipeline records remain available separately.
What is the largest power plant in New Zealand?
Manapouri is the largest at about 800 MW (hydro).
What fuels generate electricity in New Zealand?
The most common plant type in this dataset is hydro (24 plants), across 6 fuel types in total.
How clean is New Zealand's electricity grid?
New Zealand's grid carbon intensity is about 93 gCO₂/kWh, with 88.5% low-carbon generation (<a href="https://ember-energy.org/" rel="nofollow">Ember</a> / <a href="https://ourworldindata.org/energy" rel="nofollow">Our World in Data</a> (CC BY 4.0)).