New Zealand vs Portugal: Annual percentage change in primary energy from hydropower
New Zealand
2.0%
in 2025
Portugal
-0.1%
in 2025
New Zealand rank
23rd
Portugal rank
26th
Annual percentage change in primary energy from hydropower over time
- New Zealand
- Portugal
How they compare
New Zealand currently reports 2.0% against -0.1% in Portugal, a difference of 2.1%.
That makes New Zealand's figure about 13.7 times Portugal's.
The two have swapped places 35 times across 60 shared years of data; in 1966 it was Portugal ahead.
New Zealand ranks 23rd and Portugal ranks 26th of 71 countries.
Across the 7 decades both report, New Zealand averaged higher in 1 and Portugal in 6.
Head to head by decade
| Decade | New Zealand | Portugal | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 3.9% | 13.2% | 9.4% | Portugal |
| 1970s | 5.0% | 10.0% | 5.0% | Portugal |
| 1980s | 2.2% | -1.3% | 3.4% | New Zealand |
| 1990s | 0.5% | 11.5% | 11.0% | Portugal |
| 2000s | 1.0% | 16.0% | 14.9% | Portugal |
| 2010s | 0.7% | 22.9% | 22.2% | Portugal |
| 2020s | -0.8% | 16.3% | 17.1% | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from hydropower, New Zealand or Portugal?
- New Zealand, at 2.0% against -0.1% in Portugal as of 2025.
- What is the difference in annual percentage change in primary energy from hydropower between New Zealand and Portugal?
- 2.1%, with New Zealand ahead.
- How many years of comparable data are there for New Zealand and Portugal?
- 60 years are reported by both, from 1966 to 2025.
- How do New Zealand and Portugal rank globally for annual percentage change in primary energy from hydropower?
- New Zealand ranks 23rd and Portugal ranks 26th of 71 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Annual percentage change in primary energy from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Percentage change in total energy supply relative to the previous year.