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Nuclear Energy Is Experiencing A Strong Renaissance In 2026 As The Growth Of Renewable Sources Slows Down. Understand Why Power Plants, Reactors, And Big Countries Are Changing The Global Energy Game.
Nuclear energy enters 2026 as one of the most controversial and strategic themes in the global electricity sector.
As electricity demand surges due to electric cars, data centers, and the electrification of the economy, the growth of renewable sources begins to lose momentum.
In light of this scenario, governments and investors are looking back to nuclear as a quick, stable, and powerful solution to avoid supply crises.
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While heat evaporates water from reservoirs and countries seek new areas for clean energy, Morocco is testing floating solar panels that function as an energy lid and also generate electricity.
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China occupies the desert with a 2 GW solar power plant in Inner Mongolia, installs elevated panels that create shade and humidity over the sand, and transforms a 2.96 billion kWh per year farm into an unexpected weapon against desertification.
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Saudi Arabia is building in Oxagon a US$ 8.4 billion mega green hydrogen plant with 4 GW of solar and wind energy, 5.6 million solar panels, and capacity to produce 600 tons per day, transforming the desert into one of the planet’s largest clean fuel factories.
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Germany and Denmark will transform Bornholm into a Baltic power island, connecting 3 GW of offshore wind power to the grids of the two countries via submarine cables and turning a real island into an international energy hub.
Moreover, a new analysis from Rystad Energy shows that the global electricity sector has reached a turning point.
In other words, the model based solely on solar and wind is no longer growing at the same pace as before, while nuclear energy advances as an alternative capable of providing large volumes of electricity continuously.
Nuclear Energy Will Add The Largest Volume In Nearly 30 Years
In 2026, nuclear energy is expected to add about 14 gigawatts (GW) of new capacity to the global electrical system.
This will be the largest net increase in nearly three decades. In other words, it represents a move that completely shifts the balance of the global energy matrix.
According to Rystad, most of this new capacity will be installed in China.
However, countries like India, Bangladesh, Turkey, and South Korea are also expected to bring in new reactors, further increasing the weight of nuclear power on the global energy map.
At the same time, this advancement occurs precisely when renewables begin to face barriers. Licensing issues, financing difficulties, and the maturity of some markets are slowing down the pace of new solar and wind projects.
Shuttered Plants May Resume Operations In The United States
One of the most surprising points of 2026 may happen in the United States. For the first time, a nuclear plant that has been shut down and decommissioned may resume operations.
The Palisades plant, with a capacity of 800 megawatts (MW), may be reconnected after being taken offline. If this occurs, it will be a historical milestone for the country.
Carlos Torres Diaz, head of energy research at Rystad, stated: “In the United States, 2026 may mark the first case of a previously decommissioned nuclear plant resuming operations. The Palisades plant, with a capacity of 800 megawatts (MW), could return to operation after being shut down and decommissioned. If the process is completed, it will be the first reactivation of its kind in the country, which may pave the way for life extensions of other reactors, an alternative considered more economical than building new units.”
In other words, reactivating plants may be cheaper and quicker than building new ones, making nuclear energy even more appealing.
Renewables Slow Down After Years Of Rapid Growth
After more than 20 years of continuous expansion, renewable energies are expected to grow more slowly. In 2025, the world added 703 GW of renewable capacity, primarily driven by solar energy in China.
China alone accounted for about 300 GW of this total. This happened because changes in energy pricing rules led companies to accelerate projects before June 2025.
Now, in 2026, the forecast is for 235 GW of solar and 98 GW of wind in the country. With this, the global addition is expected to drop to around 650 GW.
Nevertheless, clean energy generation continues to rise. Renewable production jumped from 2,886 TWh in 2000 to 10,742 TWh in 2025. In 2026, it is expected to reach 11,900 TWh, surpassing coal.
With nuclear energy making a strong comeback and renewables losing momentum, do you think the world is entering a new era of risk or energy security?
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