How many years of comparable data are there for Switzerland and Viet Nam?

61 years are reported by both, from 1965 to 2025.

Where does this data come from?

Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Share of primary energy from solar and wind. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Switzerland vs Viet Nam: Share of primary energy from solar and wind

Switzerland

3.4%

in 2025

Viet Nam

3.7%

in 2025

Switzerland rank

34th

Viet Nam rank

32nd

Share of primary energy from solar and wind over time

Switzerland
Viet Nam

How they compare

Viet Nam currently reports 3.7% against 3.4% in Switzerland, a difference of 0.3%.

That makes Viet Nam's figure about 1.1 times Switzerland's.

The two have swapped places 2 times across 61 shared years of data; in 1965 it was Viet Nam ahead.

Switzerland ranks 34th and Viet Nam ranks 32nd of 110 countries.

Across the 7 decades both report, Switzerland averaged higher in 3 and Viet Nam in 1.

Head to head by decade

Decade	Switzerland	Viet Nam	Difference	Ahead
1960s	0.0%	0.0%	0.0%	—
1970s	0.0%	0.0%	0.0%	—
1980s	0.0%	0.0%	0.0%	—
1990s	0.0%	0.0%	0.0%	Switzerland
2000s	0.0%	0.0%	0.0%	Switzerland
2010s	0.4%	0.1%	0.3%	Switzerland
2020s	2.0%	3.1%	1.2%	Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of primary energy from solar and wind, Switzerland or Viet Nam?: Viet Nam, at 3.7% against 3.4% in Switzerland as of 2025.
What is the difference in share of primary energy from solar and wind between Switzerland and Viet Nam?: 0.3%, with Viet Nam ahead.
How many years of comparable data are there for Switzerland and Viet Nam?: 61 years are reported by both, from 1965 to 2025.
How do Switzerland and Viet Nam rank globally for share of primary energy from solar and wind?: Switzerland ranks 34th and Viet Nam ranks 32nd of 110 countries.
Where does this data come from?: Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Share of primary energy from solar and wind. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Switzerland vs Viet Nam: Share of primary energy from solar and wind. Statizoid, drawing on Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Retrieved 04 September 2026, from https://energy.statizoid.com/compare/share-of-primary-energy-from-solar-and-wind/switzerland/viet-nam/

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About this data

Indicator: Share of primary energy from solar and wind
Unit: %
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 112 places, 5,784 data points, 1965–2025
Last refreshed: 28 August 2026

Measured as a percentage of total energy supply.