Energy Shift
How Old Are the World’s Nuclear Reactors?
How Old Are the World’s Nuclear Reactors?
Since the advent of nuclear electricity in the 1950s, nuclear reactors have played an essential role in meeting our rising energy needs.
Nuclear reactors are designed to operate for decades and are typically licensed for 20 to 40 years, and they can last even longer with license renewals.
So, just how old is the world’s current nuclear reactor fleet?
The bubble chart above looks at the age distribution of the 422 reactors operating worldwide as of March 2023, based on data from the Power Reactor Information System (PRIS).
The Age Distribution of the Global Reactor Fleet
Nuclear power saw a building boom in the 1970s, 80s, and 90s as countries expanded their energy portfolios and sought to capitalize on the advancements in nuclear technology. As a result, the majority of the world’s nuclear reactors began operating during this period.
| Age Group (years) | Number of Reactors | Net Electrical Capacity (megawatts) |
|---|---|---|
| 0–10 | 67 | 66,937 |
| 11–20 | 29 | 20,964 |
| 21–30 | 46 | 40,905 |
| 31–40 | 155 | 149,638 |
| 41–50 | 107 | 88,526 |
| >50 | 18 | 10,921 |
| Total | 422 | 377,891 |
Data as of March 22, 2023.
Of the total of 422 reactors, 262 reactors have been in operation for 31 to 50 years. In other words, about 62% of all current nuclear reactors were connected to the grid between 1973 and 1992.
Nuclear power’s growth slowed down at the turn of the 21st century, with decreasing public support and increasing concern over nuclear safety. As a result, only a small number of reactors fall into the 11-to-20-year-old age group.
But over the last decade, some countries have renewed their interest in nuclear energy, while others like China have continued to expand their reactor fleets. Some 67 reactors are between zero and 10 years old, accounting for 18% of global nuclear electrical capacity.
The oldest operating reactors (five of them) are 54 years old and entered commercial service in 1969. Two of these are located in the United States, two in India, and one in Switzerland.
How Long Can Nuclear Reactors Last?
Although specific lifespans can vary, nuclear reactors are typically designed to last for 20 to 40 years.
However, reactors can operate beyond their initially licensed periods with lifetime extensions. Extending reactor lives requires rigorous assessments, safety evaluations, and refurbishments.
Some countries have granted license renewals for aging reactors. Notably, 88 of the 92 reactors in the U.S. have received approvals to operate for up to 60 years, and some have applied for additional 20-year extensions to operate for up to 80 years.
With safety concerns addressed, reactors with lifetime extensions can offer various advantages. Without the high capital investments needed to build new reactors, they can produce carbon-free electricity at low and competitive costs, which is especially important as the global power sector looks to decarbonize.
Energy Shift
Visualized: Global Coal Consumption by Region
For this graphic, Visual Capitalist has partnered with Range ETFs to explore world coal consumption in 2023 and find out who consumed the most coal.
World Coal Consumption by Region in 2023
Despite many nations transitioning away from fossil fuels, in 2023, world coal consumption reached a staggering 164 exajoules (EJ) of energy, a record high for any year.
For this graphic, Visual Capitalist has partnered with Range ETFs to explore the role coal plays in the global energy mix and determine which regions still consume large quantities of coal.
The Role of Coal in Global Energy
Coal is a significant player in the global energy mix, contributing 26% of the world’s energy in 2023, more than all non-fossil fuel sources combined. The only energy source that contributed more to the global energy mix was oil.
Here’s how that consumption breaks down by region:
| Region | Consumption (EJ) | Share % |
|---|---|---|
| China | 91.9 | 56.1% |
| Asia Pacific (excluding China) | 43.8 | 26.7% |
| Americas | 10.0 | 6.1% |
| Europe | 8.4 | 5.1% |
| CIS* | 5.5 | 3.4% |
| Africa | 4.1 | 2.5% |
| Middle East | 0.4 | 0.2% |
| Total | 164.0 | 100% |
Coal consumption has decreased in many regions. For example, both North America and Europe reduced their energy consumption from coal by 16% in 2023. However, a heavy reliance on coal in the Asia Pacific region has led to global coal consumption remaining essentially the same over the past 10 years.
In 2023, China increased its coal consumption from 88 EJ to nearly 92 EJ—totalling 56% of global coal consumption. This contributed significantly to Asia Pacific leading the world with a staggering 83% of global coal consumption.
The Importance of Coal
Easy access to existing infrastructure and reasonable prices have not only sustained global coal consumption over the last 10 years, but also paved the way for potential growth. Many developing nations are now expanding their coal consumption, presenting potential opportunities in the coal market.
For example, as per the Statistical Review of World Energy 2024, between 2022 and 2023, Bangladesh and Colombia saw double-digit percentage increases in year-over-year coal consumption: 41% and 53%, respectively.
Coal continues to play a critical role in the global energy mix, especially in the developing world, where its affordability makes it the current energy source of choice.
Learn more about the Range Global Coal Index ETF (COAL)
Energy Shift
Top Countries by Fossil Fuel Consumption in 2023
China and the U.S. account for nearly half of fossil fuel use.
Top Countries by Fossil Fuel Consumption in 2023
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.
Fossil fuel consumption reached new record highs in 2023, driven by increased coal and oil use in China, despite the global boom in renewable energy.
Together, gas, oil, and coal accounted for 81.5% of the global energy mix last year, slightly down from 82% in 2022.
This graphic shows the top 12 countries by fossil fuel consumption in 2023. Data is from the Energy Institute, 2024 Statistical Review of World Energy, released in June 2024.
China and U.S. Account for Nearly Half of Global Fossil Fuel Use
China and the U.S. are responsible for almost half (47%) of global fossil fuel consumption.
| Country | Oil (Exajoules) | Natural Gas | Coal | Total |
|---|---|---|---|---|
| 🇨🇳 China | 33 | 15 | 92 | 140 |
| 🇺🇸 U.S. | 36 | 32 | 8 | 76 |
| 🇮🇳 India | 11 | 2 | 22 | 35 |
| 🇷🇺 Russia | 7 | 16 | 4 | 27 |
| 🇯🇵 Japan | 7 | 3 | 5 | 15 |
| 🇮🇷 Iran | 4 | 9 | 0 | 12 |
| 🇸🇦 Saudi Arabia | 7 | 4 | 0 | 12 |
| 🇰🇷 South Korea | 5 | 2 | 3 | 10 |
| 🇨🇦 Canada | 4 | 4 | 0 | 9 |
| 🇮🇩 Indonesia | 3 | 2 | 4 | 9 |
| 🇩🇪 Germany | 4 | 3 | 2 | 9 |
| 🇬🇧 United Kingdom | 3 | 2 | 0 | 5 |
| 🌍 Rest of the World | 72 | 50 | 24 | 146 |
In 2023, China consumed 140 exajoules of fossil fuels, equivalent to approximately 5.8 billion tonnes of hard coal. The U.S. followed with 76 exajoules, while India was third with 35 exajoules.
Crude oil consumption surpassed 100 million barrels per day for the first time, and coal demand exceeded the previous year’s record.
China remains the largest coal consumer, accounting for 56% of global consumption, a new record for the country. Additionally, in 2023, India’s coal consumption surpassed the combined total of Europe and North America for the first time.
If you like this graphic, be sure to check out ‘Visualizing Global Energy Production in 2023.’ This graphic illustrates the sources of energy used worldwide last year.
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