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Climate Tech

San Francisco.
Climate Tech

Rise and Grind Through the Apocalypse

At San Francisco Climate Week, everything is normal — until it very much isn’t.

Climate Tech

Electra Raises $186 Million to Decarbonize Steel

The company has developed a low-temperature refining process that’s similar to the one used for copper, nickel, and other metals.

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Climate Tech

Exclusive: Occidental Petroleum Buys DAC Startup Holocene

That makes two direct air capture acquisitions for the oil and gas major.

Climate Tech

Death of a Sodium-Ion Battery Startup

Why Spencer Gore decided it was time for Bedrock Materials to close up shop.

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The Google logo and power lines.

Tapestry and PJM Partner on AI for the Interconnection Queue

The project from Google’s internal incubator program aims to help speed approvals to get more renewables on the grid.

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Lyten headquarters.

Even Domestic Battery Makers Are Feeling the Pain of Trump’s Tariffs

Bay Area battery maker Lyten sources 80% of its components in the U.S. But its ability to scale still depends on trade.

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A mining truck.
<p>Heatmap Illustration/Getty Images</p>

President Donald Trump has exempted some — but certainly not all — of the critical minerals necessary for the energy transition from the sweeping tariffs he announced Wednesday. Minerals such as lithium, nickel, cobalt, manganese, and copper are key components of clean energy infrastructure such as lithium-ion batteries, which are used in electric vehicles or stationary storage, and copper wires, which conduct electricity in solar panels and wind turbines.

The White House has published a complete list of hundreds of products that are exempt from tariffs. We combed through the list looking for key transition minerals. Here are the ones that caught our eye, plus some that were notably left off. If you see anything on the list you think we missed, my inbox is open.

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Climate Tech

The Nuclear Industry Loves This Geothermal Startup

In a Heatmap exclusive, XGS Energy is announcing a new $13 million funding round.

Geothermal and nuclear power.
<p>Heatmap Illustration/Getty Images</p>

Mano Nazar spent nearly 40 years working in the atomic energy industry — first at Duke Energy, then at American Electric Power before his capstone years as the chief nuclear officer at NextEra.

Now a semi-retired investor, he’s turning his attention to a resource he thinks can help meet the surging electricity demand the slow-growing reactor business is struggling to supply: geothermal.

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