Energy Shift
Visualizing Nuclear Power Production by Country
Nuclear Power Production by Country
Nearly 450 reactors around the world supply various nations with nuclear power, combining for about 10% of the world’s electricity, or about 4% of the global energy mix.
But while some countries are turning to nuclear as a clean energy source, nuclear energy generation overall has seen a slowdown since its peak in the 1990s.
The above infographic breaks down nuclear electricity generation by country in 2020 using data from the Power Reactor Information System (PRIS).
Ranked: The Top 15 Countries for Nuclear Power
Just 15 countries account for more than 91% of global nuclear power production. Here’s how much energy these countries produced in 2020:
| Rank | Country | Number of Operating Reactors | Nuclear Electricity Supplied [GWh] | % share |
|---|---|---|---|---|
| #1 | U.S. 🇺🇸 | 96 | 789,919 | 30.9% |
| #2 | China 🇨🇳 | 50 | 344,748 | 13.5% |
| #3 | France 🇫🇷 | 58 | 338,671 | 13.3% |
| #4 | Russia 🇷🇺 | 39 | 201,821 | 7.9% |
| #5 | South Korea 🇰🇷 | 24 | 152,583 | 6.0% |
| #6 | Canada 🇨🇦 | 19 | 92,166 | 3.6% |
| #7 | Ukraine 🇺🇦 | 15 | 71,550 | 2.8% |
| #8 | Germany 🇩🇪 | 6 | 60,918 | 2.4% |
| #9 | Spain 🇪🇸 | 7 | 55,825 | 2.2% |
| #10 | Sweden 🇸🇪 | 7 | 47,362 | 1.9% |
| #11 | U.K. 🇬🇧 | 15 | 45,668 | 1.8% |
| #12 | Japan 🇯🇵 | 33 | 43,099 | 1.7% |
| #13 | India 🇮🇳 | 22 | 40,374 | 1.6% |
| #14 | Belgium 🇧🇪 | 7 | 32,793 | 1.3% |
| #15 | Czechia 🇨🇿 | 6 | 28,372 | 1.1% |
| Rest of the World 🌎 | 44 | 207,340 | 8.1% | |
| Total | 448 | 2,553,208 | 100.0% |
In the U.S., nuclear power produces over 50% of the country’s clean electricity. Additionally, 88 of the country’s 96 operating reactors in 2020 received approvals for a 20-year life extension.
China, the world’s second-largest nuclear power producer, is investing further in nuclear energy in a bid to achieve its climate goals. The plan, which includes building 150 new reactors by 2035, could cost as much as $440 billion.
On the other hand, European opinions on nuclear energy are mixed. Germany is the eighth-largest on the list but plans to shutter its last operating reactor in 2022 as part of its nuclear phase-out. France, meanwhile, plans to expand its nuclear capacity.
Which Countries Rely Most on Nuclear Energy?
Although total electricity generation is useful for a high-level global comparison, it’s important to remember that there are some smaller countries not featured above where nuclear is still an important part of the electricity mix.
Here’s a breakdown based on the share of nuclear energy in a country’s electricity mix:
| Rank | Country | Nuclear Share of Electricity Mix |
|---|---|---|
| #1 | France 🇫🇷 | 70.6% |
| #2 | Slovakia 🇸🇰 | 53.1% |
| #3 | Ukraine 🇺🇦 | 51.2% |
| #4 | Hungary 🇭🇺 | 48.0% |
| #5 | Bulgaria 🇧🇬 | 40.8% |
| #6 | Belgium 🇧🇪 | 39.1% |
| #7 | Slovenia 🇸🇮 | 37.8% |
| #8 | Czechia 🇨🇿 | 37.3% |
| #9 | Armenia 🇦🇲 | 34.5% |
| #10 | Finland 🇫🇮 | 33.9% |
| #11 | Switzerland 🇨🇭 | 32.9% |
| #12 | Sweden 🇸🇪 | 29.8% |
| #13 | South Korea 🇰🇷 | 29.6% |
| #14 | Spain 🇪🇸 | 22.2% |
| #15 | Russia 🇷🇺 | 20.6% |
| #16 | Romania 🇷🇴 | 19.9% |
| #17 | United States 🇺🇸 | 19.7% |
| #18 | Canada 🇨🇦 | 14.6% |
| #19 | United Kingdom 🇬🇧 | 14.5% |
| #20 | Germany 🇩🇪 | 11.3% |
European countries dominate the leaderboard with 14 of the top 15 spots, including France, where nuclear power is the country’s largest source of electricity.
It’s interesting to note that only a few of these countries are top producers of nuclear in absolute terms. For example, in Slovakia, nuclear makes up 53.6% of the electricity mix—however, the country’s four reactors make up less than 1% of total global operating capacity.
On the flipside, the U.S. ranks 17th by share of nuclear power in its mix, despite producing 31% of global nuclear electricity in 2020. This discrepancy is largely due to size and population. European countries are much smaller and produce less electricity overall than larger countries like the U.S. and China.
The Future of Nuclear Power
The nuclear power landscape is constantly changing.
There were over 50 additional nuclear reactors under construction in 2020, and hundreds more are planned primarily in Asia.
As countries turn away from fossil fuels and embrace carbon-free energy sources, nuclear energy might see a resurgence in the global energy mix despite the phase-outs planned in several countries around he globe.
Energy Shift
Charted: Coal Still Dominates Global Electricity Generation
Fossil fuels account for nearly 60% of power generation.
Charted: Coal Still Dominates Global Electricity Generation
This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.
Key Takeaways
- Fossil fuels made up nearly 60% of 2024 electricity generation.
- Coal accounts for 35% of total power generation.
Fossil Fuels Still Power Most of the World
Global energy demand grew faster than average in 2024, driven by rising electricity use across sectors. The power sector led the surge, with demand growing nearly twice as fast as overall energy use—fueled by increased cooling needs, industrial activity, transport electrification, and the expansion of data centers and AI.
Despite a growing push toward cleaner energy sources, coal remains the leading source of electricity generation worldwide. In 2024, fossil fuels accounted for nearly 60% of global power generation, with coal alone contributing 35%, according to the International Energy Agency.
While renewable energy continues to expand, making up about one-third of total electricity production, the global energy mix still leans heavily on traditional sources.
| Country | Coal | Natural Gas | Oil | Renewables | Nuclear |
|---|---|---|---|---|---|
| 🇮🇳 India | 73.4% | 3.3% | 0.2% | 20.5% | 2.6% |
| 🇨🇳 China | 58.4% | 3.2% | 0.1% | 33.9% | 4.4% |
| 🇺🇸 U.S. | 15.6% | 42.6% | 0.7% | 23.3% | 17.9% |
| 🇪🇺 EU | 10.7% | 15.6% | 1.5% | 48.7% | 23.6% |
| 🌍 Global | 34.5% | 21.8% | 2.4% | 32.1% | 9.1% |
In emerging markets and developing economies, coal continues to be the backbone of power systems. China, the world’s largest energy consumer, generated nearly 60% of its electricity from coal. In India, coal’s dominance is even more pronounced, providing close to three-quarters of all electricity produced.
In contrast, advanced economies are increasingly relying on cleaner sources. In 2024, the European Union made significant strides in renewable energy adoption—nearly half of its electricity came from renewables, far exceeding the global average.
In the United States, natural gas led the power mix, accounting for over 40% of electricity generation in 2024. President Trump’s pro-coal policies and the surge in energy demand from AI innovation are expected to boost coal production in the U.S. over the next few years.
Learn More on the Voronoi App 
If you enjoyed this topic, check out this graphic that shows how 36 companies are responsible for half of the fossil fuel and cement CO2 emissions.
Energy Shift
How the Largest Importers of Russian Fossil Fuels Have Changed (2022 vs. 2025)
Despite sanctions against Moscow, the EU remains a key consumer of Russian fossil fuels.
How the Largest Importers of Russian Fossil Fuels Have Changed (2022 vs. 2025)
This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.
Since the war in Ukraine began on February 24, 2022, Russia has earned $915 billion from fossil fuel exports, with EU countries accounting for over $223 billion.
Despite sanctions against Moscow, the EU remains a key consumer of Russian fossil fuels.
This graphic highlights the largest importers of Russian fossil fuels, based on the daily flow of oil and gas, using data from the CREA Fossil Fuel Tracker as of March 2025.
China Becomes the Biggest Buyer
In June 2022, China overtook the EU as the largest importer of Russian fossil fuels. Today, China imports nearly six times more than the EU. India and Turkey have also emerged as major buyers.
| Country | 2022-01-14 (tonnes) | 2025-03-13 (tonnes) |
|---|---|---|
| 🇨🇳 China | 435,025 | 607,288 |
| 🇪🇺 EU | 928,998 | 104,646 |
| 🌍 Others | 244,945 | 275,747 |
| 🇮🇳 India | 28,907 | 344,848 |
| 🇹🇷 Turkey | 138,860 | 239,662 |
| 🇰🇷 South Korea | 93,267 | 30,255 |
| 🇺🇸 United States | 33,468 | 0 |
| 🇬🇧 UK | 49,062 | 0 |
Meanwhile, imports from the U.S. and UK, which were relatively small before the invasion, have dropped to zero.
EU Reliance on Russian Fuel
A report released by Ember estimates that European purchases of Russian gas amounted to €21.9 billion ($23.6 billion) in 2024.
Additionally, data collected by Kpler and analyzed by POLITICO Europe revealed that in the first 15 days of 2025, the 27 EU countries imported a record-high 837,300 metric tons of liquefied natural gas (LNG) from Russia. This has raised concerns that billions of dollars could be fueling Moscow’s war in Ukraine.
Russia’s Position in Global Oil Production
Russia remains one of the world’s top oil producers, frequently competing with Saudi Arabia for the second spot behind the United States.
Following the fall of the Soviet Union, Russia’s oil industry was privatized, but in 2021, the state forced a consolidation and restructuring of the sector. Today, Gazprom, Rosneft, and Lukoil are Russia’s leading oil and gas producers.
Learn More on the Voronoi App
If you enjoyed this topic, check out this graphic that shows Ukraine’s mineral resources.
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