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How Old Are the World’s Nuclear Reactors?

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age distribution of nuclear reactors chart

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 ReactorsNet Electrical Capacity (megawatts)
0–106766,937
11–202920,964
21–304640,905
31–40155149,638
41–5010788,526
>501810,921
Total422377,891

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.

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Energy Shift

How Many New Mines Are Needed for the Energy Transition?

Copper and lithium will require the highest number of new mines.

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This graphic estimates the number of mines needed to meet the 2030 demand for energy transition materials.

How Many New Mines Are Needed for the Energy Transition?

The energy transition relies on the minerals necessary to build electric vehicles, batteries, solar farms, and wind turbines. In an economy moving away from fossil fuels every day, sourcing the materials required for this shift presents one of the biggest challenges.
This graphic forecasts the number of mines that must be developed to meet the expected demand for energy transition raw materials and chemicals by 2030. This data comes exclusively from Benchmark Mineral Intelligence as of November 2024.

Nearly 300 Mines

According to Benchmark Mineral Intelligence, meeting global battery demand by 2030 would require 293 new mines or plants.

Mineral2024 Supply (t)2030 Demand (t)Supply Needed (t)No. of Mines/PlantsType
Lithium1,181,0002,728,0001,547,00052Mine
Cobalt272,000401,000129,00026Mine
Nickel3,566,0004,949,0001,383,00028Mine
Natural Graphite1,225,0002,933,0001,708,00031Mine
Synthetic Graphite1,820,0002,176,000356,00012Plant
Manganese90,000409,000319,00021Plant
Purified Phosphoric Acid6,493,0009,001,0002,508,00033Plant
Copper22,912,00026,576,0003,664,00061Mine
Rare Earths83,711116,66332,95229Mine

Copper, used in wires and other applications, and lithium, essential for batteries, will require the most significant number of new mines.

Manganese production would need to increase more than fourfold to meet anticipated demand.

Not an Easy Task

Building new mines is one of the biggest challenges in reaching the expected demand.

After discovery and exploration, mineral projects must go through a lengthy process of research, permitting, and funding before becoming operational.

In the U.S., for instance, developing a new mine can take 29 years.

In contrast, Ghana, the Democratic Republic of Congo, and Laos have some of the shortest development times in the world, at roughly 10 to 15 years.

 

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Energy Shift

Visualizing Europe’s Dependence on Chinese Resources

Europe depends entirely on China for heavy rare earth elements, critical for technologies such as hybrid cars and fiber optics.

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This graphic shows the percentage of EU raw material supply sourced from China for 12 raw materials used in various industries.

Visualizing Europe’s Dependence on Chinese Resources

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.

Despite efforts by European countries to reduce their reliance on China for critical materials, the region remains heavily dependent on Chinese resources.

This graphic shows the percentage of EU raw material supply sourced from China for 12 raw materials used in various industries. Bloomberg published this data in May 2024 based on European Commission research.

China’s Dominance in Clean Energy Minerals

Europe is 100% dependent on China for heavy rare earth elements used in technologies such as hybrid cars, fiber optics, and nuclear power.

Additionally, 97% of the magnesium consumed in Europe, for uses ranging from aerospace alloys to automotive parts, comes from the Asian country.

Raw MaterialPercentage Supplied by ChinaUsage
Heavy rare earth elements100%nuclear reactors, TV screens, fiber optics
Magnesium97%Aerospace alloys, automotive parts
Light rare earth elements85%Catalysts, aircraft engines, magnets
Lithium79%Batteries, pharmaceuticals, ceramics
Gallium71%Semiconductors, LEDs, solar panels
Scandium67%Aerospace components, power generation, sports equipment
Bismuth65%Pharmaceuticals, cosmetics, low-melting alloys
Vanadium62%Steel alloys, aerospace, tools
Baryte45%Oil and gas drilling, paints, plastics
Germanium45%Fiber optics, infrared optics, electronics
Natural graphite40%Batteries, lubricants, refractory materials
Tungsten32%Cutting tools, electronics, heavy metal alloys

Almost 80% of the lithium in electric vehicles and electronics batteries comes from China.

Assessing the Risks

The EU faces a pressing concern over access to essential materials, given the apprehension that China could “weaponize” its dominance of the sector.

One proposed solution is the EU’s Critical Raw Materials Act, which entered into force in May 2024.

The act envisions a quota of 10% of all critical raw materials consumed in the EU to be produced within the EU.

Additionally, it calls for a significant increase in recycling efforts, totaling up to 25% of annual consumption in the EU. Lastly, it sets the target of reducing dependency for any critical raw material on a single non-EU country to less than 65% by 2030.

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