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.
Electricity generation by source in New Zealand, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 1.35 terawatt-hours | — |
| 1966 | 1.36 terawatt-hours | +0.8% |
| 1967 | 1.13 terawatt-hours | -16.6% |
| 1968 | 1.29 terawatt-hours | +14.2% |
| 1969 | 1.33 terawatt-hours | +2.5% |
| 1970 | 1.27 terawatt-hours | -4.1% |
| 1971 | 1.26 terawatt-hours | -1.3% |
| 1972 | 1.26 terawatt-hours | +0.1% |
| 1973 | 1.24 terawatt-hours | -1.1% |
| 1974 | 2.08 terawatt-hours | +67.3% |
| 1975 | 2.11 terawatt-hours | +1.3% |
| 1976 | 2.05 terawatt-hours | -2.4% |
| 1977 | 1.98 terawatt-hours | -3.7% |
| 1978 | 2 terawatt-hours | +1.2% |
| 1979 | 1.88 terawatt-hours | -6.2% |
| 1980 | 1.97 terawatt-hours | +5.0% |
| 1981 | 1.94 terawatt-hours | -1.7% |
| 1982 | 1.97 terawatt-hours | +1.5% |
| 1983 | 1.99 terawatt-hours | +0.9% |
| 1984 | 2.14 terawatt-hours | +7.7% |
| 1985 | 2.01 terawatt-hours | -6.0% |
| 1986 | 2.08 terawatt-hours | +3.6% |
| 1987 | 2.08 terawatt-hours | -0.2% |
| 1988 | 2.09 terawatt-hours | +0.5% |
| 1989 | 2.58 terawatt-hours | +23.5% |
| 1990 | 2.95 terawatt-hours | +14.5% |
| 1991 | 3.12 terawatt-hours | +5.7% |
| 1992 | 3.07 terawatt-hours | -1.7% |
| 1993 | 3.22 terawatt-hours | +4.8% |
| 1994 | 3.07 terawatt-hours | -4.5% |
| 1995 | 3.02 terawatt-hours | -1.6% |
| 1996 | 2.95 terawatt-hours | -2.4% |
| 1997 | 3.05 terawatt-hours | +3.2% |
| 1998 | 3.31 terawatt-hours | +8.6% |
| 1999 | 3.56 terawatt-hours | +7.5% |
| 2000 | 2.76 terawatt-hours | -22.4% |
| 2001 | 2.68 terawatt-hours | -2.9% |
| 2002 | 2.65 terawatt-hours | -1.1% |
| 2003 | 2.59 terawatt-hours | -2.3% |
| 2004 | 2.63 terawatt-hours | +1.5% |
| 2005 | 2.98 terawatt-hours | +13.3% |
| 2006 | 3.18 terawatt-hours | +6.7% |
| 2007 | 3.35 terawatt-hours | +5.3% |
| 2008 | 3.97 terawatt-hours | +18.5% |
| 2009 | 4.59 terawatt-hours | +15.6% |
| 2010 | 5.53 terawatt-hours | +20.5% |
| 2011 | 5.77 terawatt-hours | +4.3% |
| 2012 | 5.85 terawatt-hours | +1.4% |
| 2013 | 6.07 terawatt-hours | +3.8% |
| 2014 | 6.87 terawatt-hours | +13.2% |
| 2015 | 7.41 terawatt-hours | +7.9% |
| 2016 | 7.54 terawatt-hours | +1.8% |
| 2017 | 7.58 terawatt-hours | +0.5% |
| 2018 | 7.52 terawatt-hours | -0.8% |
| 2019 | 7.59 terawatt-hours | +0.9% |
| 2020 | 7.83 terawatt-hours | +3.2% |
| 2021 | 7.97 terawatt-hours | +1.8% |
| 2022 | 7.82 terawatt-hours | -1.9% |
| 2023 | 7.73 terawatt-hours | -1.2% |
| 2024 | 8.93 terawatt-hours | +15.5% |
| 2025 | 9.44 terawatt-hours | +5.7% |
Biggest year-on-year movements
Years where Electricity generation by source in New Zealand changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1974 | +67.3% | 1.24 terawatt-hours | 2.08 terawatt-hours |
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
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate 1.2 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2025)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 12.0% (2025)
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.