Electricity generation by source in New Zealand
New Zealand: Electricity generation by source was 9.44 terawatt-hours in 2025. ◆ Volatile
Electricity generation by source in New Zealand, 1965–2025
Source: Ember (2026); Pinto et al. (2023); Energy Institute - Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for electricity generation by source in New Zealand is 9.44 terawatt-hours, measured in 2025. That is the highest value across all 61 years on record.
That represents a change of up 5.7% on the previous year and up 27.4% over ten years.
Over the whole period, electricity generation by source in New Zealand peaked at 9.44 terawatt-hours in 2025 and was at its lowest, 1.13 terawatt-hours, in 1967.
That places New Zealand 5th out of 214 countries with data for 2025, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 1.29 terawatt-hours | 1.13 terawatt-hours | 1.36 terawatt-hours | 5 |
| 1970s | 1.71 terawatt-hours | 1.24 terawatt-hours | 2.11 terawatt-hours | 10 |
| 1980s | 2.08 terawatt-hours | 1.94 terawatt-hours | 2.58 terawatt-hours | 10 |
| 1990s | 3.13 terawatt-hours | 2.95 terawatt-hours | 3.56 terawatt-hours | 10 |
| 2000s | 3.14 terawatt-hours | 2.59 terawatt-hours | 4.59 terawatt-hours | 10 |
| 2010s | 6.77 terawatt-hours | 5.53 terawatt-hours | 7.59 terawatt-hours | 10 |
| 2020s | 8.29 terawatt-hours | 7.73 terawatt-hours | 9.44 terawatt-hours | 6 |
Countries ranked near New Zealand
More energy & mining data for New Zealand
- Fuel imports 12.0% (2025)
- Ores and metals imports 2.1% (2025)
- Ores and metals exports 3.2% (2025)
- Gas production 35.27 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 6,765 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 35.27 terawatt-hours (2024)
- Gas production per person 6,765 kilowatt-hours per person (2024)
- Fuel exports 0.9% (2025)
- Electric power transmission and distribution losses 6.7% (2024)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 56.8% (2023)
Frequently asked questions
- What is electricity generation by source in New Zealand?
- Electricity generation by source in New Zealand was 9.44 terawatt-hours in 2025, according to Ember (2026); Pinto et al. (2023); Energy Institute - Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest electricity generation by source recorded in New Zealand?
- The highest recorded value was 9.44 terawatt-hours in 2025.
- What is the lowest electricity generation by source recorded in New Zealand?
- The lowest recorded value was 1.13 terawatt-hours in 1967.
- How does New Zealand rank for electricity generation by source?
- New Zealand ranks 5th out of 214 countries with data for 2025.
- Is electricity generation by source rising or falling in New Zealand?
- Over the last ten years it is up 27.4%. The long-run trend across the full record is volatile.
- Where does this New Zealand data come from?
- The figures come from Ember (2026); Pinto et al. (2023); Energy Institute - Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as part of Electricity generation by source. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours.