Norway vs Vietnam: Annual change in primary energy from hydropower
Norway
5.6 terawatt-hours
in 2025
Vietnam
13.1 terawatt-hours
in 2025
Norway rank
6th
Vietnam rank
5th
Annual change in primary energy from hydropower over time
- Norway
- Vietnam
How they compare
Vietnam currently reports 13.1 terawatt-hours against 5.6 terawatt-hours in Norway, a difference of 7.5 terawatt-hours.
That makes Vietnam's figure about 2.3 times Norway's.
The two have swapped places 32 times across 60 shared years of data; in 1966 it was Vietnam ahead.
Norway ranks 6th and Vietnam ranks 5th of 80 countries.
Across the 7 decades both report, Norway averaged higher in 3 and Vietnam in 4.
Head to head by decade
| Decade | Norway | Vietnam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1.98 terawatt-hours | 0.05 terawatt-hours | 1.93 terawatt-hours | Norway |
| 1970s | 3.13 terawatt-hours | 0.046 terawatt-hours | 3.09 terawatt-hours | Norway |
| 1980s | 2.97 terawatt-hours | 0.2838 terawatt-hours | 2.69 terawatt-hours | Norway |
| 1990s | 0.3052 terawatt-hours | 0.9936 terawatt-hours | 0.6884 terawatt-hours | Vietnam |
| 2000s | 0.3831 terawatt-hours | 1.62 terawatt-hours | 1.24 terawatt-hours | Vietnam |
| 2010s | 0.0007 terawatt-hours | 3.61 terawatt-hours | 3.61 terawatt-hours | Vietnam |
| 2020s | 3.31 terawatt-hours | 5.95 terawatt-hours | 2.64 terawatt-hours | Vietnam |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from hydropower, Norway or Vietnam?
- Vietnam, at 13.1 terawatt-hours against 5.6 terawatt-hours in Norway as of 2025.
- What is the difference in annual change in primary energy from hydropower between Norway and Vietnam?
- 7.5 terawatt-hours, with Vietnam ahead.
- How many years of comparable data are there for Norway and Vietnam?
- 60 years are reported by both, from 1966 to 2025.
- How do Norway and Vietnam rank globally for annual change in primary energy from hydropower?
- Norway ranks 6th and Vietnam ranks 5th of 80 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Annual 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
Change in total energy supply relative to the previous year, measured in terawatt-hours.