IEA country data · 2025
New Zealand Electricity Generation
Net electricity generation in New Zealand totaled 42,945 GWh in 2025 (OECD/IEA Monthly Electricity Statistics: Generation (MESGEN) net generation statistics). Rank among mapped countries: #31. Renewable share: 88.2%.
Monthly reporting did not include production from not specified source nor transmission and distribution losses, therefore they are estimated by the IEA Secretariat. Monthly submissions only include main electricity producers, which supposes a 95% coverage. The rest of the electricity generation is estimated by the IEA Secretariat based on the annual submissions.
Generation by fuel (2025)
| Fuel / technology | Generation (GWh) |
|---|---|
| Total of renewable energy sources | 37,925 |
| Hydropower | 23,819 |
| Geothermal | 9,183 |
| Combustible Fuels | 5,060 |
| Total fossil fuels (incl. coal, oil and gas) | 4,994 |
| Wind | 3,810 |