Callaway Climate Insights

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Nuclear stocks extend gains as Trump, Europe shift demand
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Nuclear stocks extend gains as Trump, Europe shift demand

Plus, a new start up hub is developing north of San Francisco

David Callaway's avatar
David Callaway
May 27, 2025
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Callaway Climate Insights
Callaway Climate Insights
Nuclear stocks extend gains as Trump, Europe shift demand
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In today’s edition:

— Nuclear stocks on the rise as Trump orders action, Europe changes heart
— A startup alternative to Sand Hill Road in San Francisco Bay Area
— EPA reportedly plans to scrap all limits on greenhouse gas emissions from power plants
— NOAA predicts between six and 10 hurricanes in U.S. this season
— Wildfires helped double the loss of the world’s forests in 2024 from the year before
Three Mile Island Unit 1, in Middletown, Pa., is one of the first two shuttered U.S. nuclear reactors set to be restarted. Constellation Energy plans to restart the plant in 2028, in a deal to power data centers for Microsoft. Photo: Constellation.

A slowly evolving acceptance of nuclear energy back into the renewable fold over the past few years has picked up pace recently as energy demand for data centers adds to the urgency of creating new sources in the U.S. and Europe.

A series of executive orders from President Donald Trump late last week lit nuclear stocks up on Tuesday as the White House seeks to rapidly improve the time to market for restarting existing nuclear plants such as Three Mile Island and approving new technology such as small modular reactors.

At the same time, a two-decade reluctance in parts of Europe to adopt nuclear technology is fading fa away, with Germany the most important holdout to change its tune. Germany dropped its stance against nuclear energy as a renewable energy at the European Union policy level, removing a major obstacle for nuclear in Brussels.

Also, Belgium and Denmark reportedly began to re-evaluate their antinuclear positions, and Italy and Switzerland plan to reintroduce nuclear as energy demand increases.

Shares of U.S. nuclear companies such as Constellation Energy CEG 0.00%↑, NuScale Power SMR 0.00%↑ and Vistra Corp. VST 0.00%↑ all rose, with NuScale leaping some 17% on Tuesday in direct response to the small nuclear reactor orders.

As the world slips further away from its net zero initiatives of a decade ago, and it becomes clear that the phaseouts of oil and gas are still many years away, any and all sources of new energy are going to be in demand. That includes renewables such as wind and solar, but nuclear is now firmly back in that camp, if it ever was out.

Don’t forget to contact me directly if you have suggestions or ideas dcallaway@callawayclimateinsights.com.

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