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Technology

Geothermal Energy Storage is Making a Big Leap in Texas

On the EarthStore project, nuclear-powered ships, and plastic pollution.

Geothermal Energy Storage is Making a Big Leap in Texas
Heatmap Illustration/Getty Images

Current conditions: Hurricane Ernesto could strengthen into a category 3 storm by Friday • Several days of heavy rain in Majorca, Spain, flooded streets and grounded flights • The heat index is hovering around 115 degrees Fahrenheit for parts of Arkansas, Louisiana, and Mississippi.

THE TOP FIVE

1. Texas to host first grid-connected geothermal energy storage project

Plans are underway in Texas to build what will become the first geothermal energy storage project to deliver power to the grid. The 3-megawatt EarthStore project will be located in Christine, Texas, and operated by Sage Geosystems. It will connect with the ERCOT grid, storing energy to be deployed on demand. Advanced geothermal reservoirs harness the heat under the Earth’s surface to generate energy. They can store power that’s been generated by wind or solar in the form of hot water or steam, and some research suggests this process could be more efficient and perhaps cheaper than using batteries. Either way, as renewable capacity ramps up, the more storage options, the better. The project is expected to be ready by the end of 2024.

2. Greece assesses damage from wildfire near Athens

The wildfire on the outskirts of Athens this week burned 40 square miles of land, or an area about twice the size of Manhattan, according to satellite data from the Copernicus Emergency Management Service. One person was killed and at least 78 homes were lost to the flames. Intense drought conditions, combined with soaring temperatures, have turned Greece into a tinderbox, with more than 3,500 fires ignited since May, up nearly 50% from the same period last year. More than one-third of the forests surrounding Athens have been scorched by wildfires over the last eight years.

Copernicus Emergency Management Service

3. Report: U.S. will back global plastics treaty

The U.S. will support a United Nations treaty to cap the amount of new plastic produced annually, Reuters reported. America is one of the world’s most prolific plastic makers, and has previously supported the idea that each country should be able to manage its own production. But many other nations have called for limiting and phasing down new plastic production to curb pollution and toxic chemicals, an initiative the U.S. seems to be warming to. Most plastics are made from fossil fuels, and major producers like China and Saudi Arabia have argued that the focus should be on recycling and reusing, instead of limiting production overall. The final talks over the UN plastics treaty are scheduled for November.

4. Maersk joins initiative to study nuclear-powered ships

Danish shipping giant Maersk is interested in studying the feasibility of nuclear-powered cargo ships. The company will team up with maritime services firm Lloyd’s Register and Core Power to figure out how a nuclear reactor could be fitted on a vessel, plus what kinds of safety precautions and regulations would need to be in place. “Nuclear power holds a number of challenges related to for example safety, waste management, and regulatory acceptance across regions, and so far, the downsides have clearly outweighed the benefits of the technology,” Ole Graa Jakobsen, Maersk’s head of fleet technology, said in a statement. “If these challenges can be addressed by development of the new so-called fourth-generation reactor designs, nuclear power could potentially mature into another possible decarbonization pathway for the logistics industry 10 to 15 years in the future,” he said. The shipping sector accounts for about 3% of global carbon dioxide emissions, and guidelines from the International Maritime Organization set out in 2023 require companies to cut emissions by 40% by 2030.

5. China’s OceanX floating wind turbine reaches wind farm

This week a giant, two-headed, floating offshore wind turbine has been on a 50-hour, 191-nautical-mile journey from Guangzhou, China, to its final destination in the Qingzhou IV Offshore Wind Farm in Yangjiang. Yesterday it finally arrived safely. The OceanX is the world’s largest floating wind turbine platform in terms of capacity. The company behind it, Mingyang Smart Energy, says the platform can produce 54 million kWh annually, enough to power 30,000 households. It’s made to be used in deep water and the company says it can withstand the kind of high winds and waves generated by typhoons.

THE KICKER

New analysis finds that enacting the policies outlined in the conservative blueprint Project 2025 would result in 1.7 million fewer jobs, 2,000 pollution-related premature deaths, and boost U.S. emissions by about 780 million metric tons per year by 2030.

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Ideas

The Last Time America Tried to Legislate Its Way to Energy Affordability

Lawmakers today should study the Energy Security Act of 1980.

Jimmy Carter.
Heatmap Illustration/Getty Images, Library of Congress

The past few years have seen wild, rapid swings in energy policy in the United States, from President Biden’s enthusiastic embrace of clean energy to President Trump’s equally enthusiastic re-embrace of fossil fuels.

Where energy industrial policy goes next is less certain than any other moment in recent memory. Regardless of the direction, however, we will need creative and effective policy tools to secure our energy future — especially for those of us who wish to see a cleaner, greener energy system. To meet the moment, we can draw inspiration from a largely forgotten piece of energy industrial policy history: the Energy Security Act of 1980.

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Blue
AM Briefing

The Grinch of Offshore Wind

On Google’s energy glow up, transmission progress, and South American oil

Donald Trump.
Heatmap Illustration/Getty Images

Current conditions: Nearly two dozen states from the Rockies through the Midwest and Appalachians are forecast to experience temperatures up to 30 degrees above historical averages on Christmas Day • Parts of northern New York and New England could get up to a foot of snow in the coming days • Bethlehem, the West Bank city south of Jerusalem in which Christians believe Jesus was born, is preparing for a sunny, cloudless Christmas Day, with temperatures around 60 degrees Fahrenheit.

This is our last Heatmap AM of 2025, but we’ll see you all again in 2026!

THE TOP FIVE

1. Trump halts construction on all offshore wind projects

Just two weeks after a federal court overturned President Donald Trump’s Day One executive order banning new offshore wind permits, the administration announced a halt to all construction on seaward turbines. Secretary of the Interior Doug Burgum announced the move Monday morning on X: “Due to national security concerns identified by @DeptofWar, @Interior is PAUSING leases for 5 expensive, unreliable, heavily subsidized offshore wind farms!” As Heatmap’s Jael Holzman explained in her writeup, there are only five offshore wind projects currently under construction in U.S. waters: Vineyard Wind, Revolution Wind, Coastal Virginia Offshore Wind, Sunrise Wind, and Empire Wind. “The Department of War has come back conclusively that the issues related to these large offshore wind programs create radar interference, create genuine risk for the U.S., particularly related to where they are in proximity to our East Coast population centers,” Burgum told Fox Business host Maria Bartiromo.

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Green
Energy

Google Is Cornering the Market on Energy Wonks

The hyperscaler is going big on human intelligence to help power its artificial intelligence.

The Google logo holding electricity.
Heatmap Illustration/Getty Images

Google is on an AI hiring spree — and not just for people who can design chips and build large language models. The tech giant wants people who can design energy systems, too.

Google has invested heavily of late in personnel for its electricity and infrastructure-related teams. Among its key hires is Tyler Norris, a former Duke University researcher and one of the most prominent proponents of electricity demand flexibility for data centers, who started in November as “head of market innovation” on the advanced energy team. The company also hired Doug Lewin, an energy consultant and one of the most respected voices in Texas energy policy, to lead “energy strategy and market design work in Texas,” according to a note he wrote on LinkedIn. Nathan Iyer, who worked on energy policy issues at RMI, has been a contractor for Google Clean Energy for about a year. (The company also announced Monday that it’s shelling out $4.5 billion to acquire clean energy developer Intersect.)

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