The world is quietly undergoing a fundamental shift in how it generates baseload power. After years of stagnation in the West, the nuclear energy sector is experiencing a massive revival, driven by the dual mandates of decarbonizing power grids and feeding the insatiable electricity demands of electric vehicles and AI data centers. The momentum reached a critical tipping point in March 2026, when China and Brazil officially joined the international pledge to triple global nuclear energy capacity by 2050, bringing the coalition of supportive nations to 38.

But pledges and targets are just words; the true measure of a structural commodity shift is found in the dirt. Today, there are exactly 75 nuclear reactors that have broken ground worldwide.

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The Deep Dive

1. China’s Unprecedented Reactor Buildout

The scale of China's nuclear ambition is difficult to overstate. With 38 reactors under construction representing 44.1 GWe of capacity, Beijing is moving at a pace not seen since the United States and France built out their fleets in the 1970s and 1980s. In the last 15 years, China has added more nuclear energy capacity than the rest of the world combined. This aggressive expansion—heavily featuring domestic Generation III+ designs like the Hualong One and CAP1000—is a deliberate strategy to secure energy sovereignty and reduce reliance on imported fossil fuels amidst rising geopolitical tensions.

2. The Global South Embraces the Atom

The data reveals a stark geographical pivot. The "Nuclear Renaissance" is not happening in North America or Western Europe; it is taking place in emerging economies. Russia and India are tied for second place with six reactors each. Furthermore, for the first time, Egypt is constructing four nuclear power reactors at the El Dabaa site, totaling 4.4 GWe of capacity. Turkey is building four Russian-designed VVER reactors at Akkuyu, and Bangladesh is constructing its first two units at Rooppur. This deployment into new markets represents a permanent expansion of the global nuclear footprint.

3. Accounting for the "Suspended" Fleet

When tracking nuclear data, precision matters. The World Nuclear Association tracks 75 reactors that have officially poured safety-related concrete. However, five of these projects are currently classified as "suspended." This includes two reactors in Ukraine (Khmelnytskyi 3 & 4), two in Japan (Ohma 1 & Shimane 3, stalled post-Fukushima), and one in Brazil (Angra 3). While these 5 units remain in the grand total of ground-broken projects, the active global construction pipeline sits at 70 reactors.

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Did You Know? The Mathematics of Uranium Demand

A standard 1-Gigawatt (1 GWe) nuclear reactor requires roughly 400 to 600 tonnes of natural uranium just to create its initial core fuel load. After that, it consumes about 200 tonnes of natural uranium every single year for refueling.

When looking at the 75 reactors under construction in the chart above, they don't just represent future electricity—they represent tens of thousands of tonnes of entirely new, locked-in uranium demand required simply to turn them on for the first time. Furthermore, because a single uranium pellet the size of a fingertip contains the energy equivalent of 1 ton of coal, these 75 reactors will operate for 60 to 80 years, creating a massive, long-term supply deficit for miners to fill.

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The New Baseline for Uranium Demand

The 75 reactors mapped above represent just the tip of the spear. According to recent World Nuclear Association outlooks, national targets for new nuclear now far exceed a tripling of global capacity. To put this into perspective, the global nuclear fleet currently operates with a total capacity of roughly 398 GWe. If all operable, under-construction, planned, and proposed reactors align with recent government mandates, that global capacity could reach 1,446 GWe by 2050—meaning the fleet would grow to more than three and a half times its current size.

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For the mining and investment communities, this physical pipeline represents a locked-in, decades-long demand curve for uranium. Reactors under construction are not speculative concepts; they are multi-billion-dollar sunk costs that will absolutely require secure, long-term fuel supplies the moment they are connected to the grid.

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