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Technology

Three Mile Island Is Coming Back Online to Power Microsoft Data Centers

On major nuclear news, the Doomsday Glacier, and Canada’s emissions

Three Mile Island Is Coming Back Online to Power Microsoft Data Centers
Heatmap Illustration/Getty Images

Current conditions: Cleanup efforts have begun in Italy’s washed out Emilia-Romagna region • Endangered freshwater dolphins are washing ashore at Brazil’s Lake Tefe as water levels recede due to drought • The Colorado Rockies could see some snow this weekend.

THE TOP FIVE

1. Three Mile Island nuclear plant to come back online to power Microsoft data centers

We’ll start with some breaking news today: Pennsylvania’s Three Mile Island nuclear plant, the site of an infamous 1979 partial reactor meltdown, will be revived by 2028 as part of a plan to provide power for Microsoft’s data centers. Constellation Energy, the plant’s owner and the largest nuclear operator in the country, announced the news today. Microsoft agreed to buy all of the plant’s power for 20 years – enough energy to power 800,000 homes.

If approved, this decision “would mark a bold advance in the tech industry’s quest to find enough electric power to support its boom in artificial intelligence,” The Washington Post reported. “The symbolism is enormous,” Joseph Dominguez, chief executive of Constellation, told The New York Times. “This was the site of the industry’s greatest failure, and now it can be a place of rebirth.”

“Now, THIS is additional clean supply,” said Heatmap Shift Key co-host Jesse Jenkins. “Bravo. It is remarkable to see a handful of nuclear reactors shuttered in the last decade due to poor revenues contemplating restart now. Palisades, now TMI. Who is next? Maybe it was unwise to let these plants close in the fist place eh?”

2. World Bank climate financing reaches record high

The World Bank Group yesterday announced it delivered a record $42.6 billion in climate finance in fiscal year 2024 (which ran from July to June), a 10% increase year-over-year. Climate financing made up 44% of the group’s total lending, which is awfully close to its goal, set at COP28, of 45% for fiscal year 2025. However this remains “well short of the trillions of dollars in additional resources needed annually to finance the clean energy transition in emerging markets and developing countries,” noted Reuters.

3. Equatic starts producing its breakthrough anode

Carbon removal startup Equatic announced it has started manufacturing its “oxygen-selective anode,” which has the potential to pave the way for a two-for-one climate solution: commercial hydrogen production and carbon removal. Equatic wants to use seawater electrolysis – sending an electrical current through seawater – to sequester carbon dioxide from the air in the ocean while also producing hydrogen. But as Heatmap’s Emily Pontecorvo reported, electrolysis tends to turn the salt in the water into the toxic and corrosive gas chlorine, which makes commercializing such a process challenging. So Equatic set out to find the right combination of catalysts to make an anode – a sheet of conductive, positively-charged metal – that, when used in electrolysis, would screen out the salt and not allow it to react. Using ARPA-E funding, they landed on a design that produced less than one part per million of chlorine (lower than the amount in drinking water) and performed reliably for more than 20,000 hours of testing.

The company’s San Francisco facility will be able to produce 4,000 of these anodes per year to start, and is expected to operate at full capacity by the end of 2024. It will produce the anodes for Equatic’s first demonstration-scale project, a new plant in Singapore designed to remove 10 metric tons of CO2 and produce 300 kilograms of hydrogen per day — 100 times larger than the pilot version. Equatic also has plans to build an even bigger plant in Quebec that can remove 300 tons per day. That’s about three times the capacity of Climeworks’ Mammoth plant, the world’s largest direct air capture plant operating today.

4. Outlook for Doomsday Glacier looking ‘grim’

Scientists who spent six years examining the Thwaites Glacier in Antarctica warned this week that the outlook for the glacier is “grim.” Thwaites, often referred to as the “Doomsday Glacier,” is massive, spanning an area equal to the state of Florida. It has been retreating for nearly a century, but this melting has accelerated significantly over the last 30 years and the new research suggests it is set to worsen. Within 200 years, the glacier could collapse, raising sea levels worldwide. CNN succinctly summarized why this matters:

“Thwaites holds enough water to increase sea levels by more than 2 feet. But because it also acts like a cork, holding back the vast Antarctic ice sheet, its collapse could ultimately lead to around 10 feet of sea level rise, devastating coastal communities from Miami and London to Bangladesh and the Pacific Islands.”

Dr. Ted Scambos, U.S. science coordinator of the International Thwaites Glacier Collaboration and glaciologist at the University of Colorado, said “immediate and sustained climate intervention will have a positive effect, but a delayed one.”

ITGC

5. WRI considers city life at 3 degrees Celsius of warming

A sweeping new report from the World Resources Institute paints a bleak picture of what 996 of the world’s biggest cities will feel like in a world that is 1.5 degrees Celsius warmer than pre-industrial records, and compares that to a scenario in which temperatures warm by 3 degrees Celsius. Here are some stats:

  • 6.4 – heat waves, on average, cities will experience each year with 3 degrees C of warming, compared to 4.9 heat waves annually at 1.5 degrees C of warming.
  • 24.5 – average length, in days, of the year’s longest heat wave at 3 degrees C of warming, compared to 16.3 days for 1.5 degrees C of warming.
  • 16 – percentage of big cities that would experience a heat wave that lasts for a month or longer annually at 3 degrees C of warming.
  • Two-thirds – the share of the global population that will live in cities by 2050.

The report also looks at what warmer temperatures mean for mosquito-borne diseases. Some, like dengue, Zika, and West Nile, will become more common. But malaria could actually decline “as temperatures in many places become warmer than what is optimal for malaria-transmitting mosquitos.”

THE KICKER

Canada’s carbon emissions dropped last year for the first time since the pandemic, falling 0.8% between 2022 and 2023.

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Hotspots

GOP Lawmaker Asks FAA to Rescind Wind Farm Approval

And more on the week’s biggest fights around renewable energy.

The United States.
Heatmap Illustration/Getty Images

1. Benton County, Washington – The Horse Heaven wind farm in Washington State could become the next Lava Ridge — if the Federal Aviation Administration wants to take up the cause.

  • On Monday, Dan Newhouse, Republican congressman of Washington, sent a letter to the FAA asking them to review previous approvals for Horse Heaven, claiming that the project’s development would significantly impede upon air traffic into the third largest airport in the state, which he said is located ten miles from the project site. To make this claim Newhouse relied entirely on the height of the turbines. He did not reference any specific study finding issues.
  • There’s a wee bit of irony here: Horse Heaven – a project proposed by Scout Clean Energy – first set up an agreement to avoid air navigation issues under the first Trump administration. Nevertheless, Newhouse asked the agency to revisit the determination. “There remains a great deal of concern about its impact on safe and reliable air operations,” he wrote. “I believe a rigorous re-examination of the prior determination of no hazard is essential to properly and accurately assess this project’s impact on the community.”
  • The “concern” Newhouse is referencing: a letter sent from residents in his district in eastern Washington whose fight against Horse Heaven I previously chronicled a full year ago for The Fight. In a letter to the FAA in September, which Newhouse endorsed, these residents wrote there were flaws under the first agreement for Horse Heaven that failed to take into account the full height of the turbines.
  • I was first to chronicle the risk of the FAA grounding wind project development at the beginning of the Trump administration. If this cause is taken up by the agency I do believe it will send chills down the spines of other project developers because, up until now, the agency has not been weaponized against the wind industry like the Interior Department or other vectors of the Transportation Department (the FAA is under their purview).
  • When asked for comment, FAA spokesman Steven Kulm told me: “We will respond to the Congressman directly.” Kulm did not respond to an additional request for comment on whether the agency agreed with the claims about Horse Heaven impacting air traffic.

2. Dukes County, Massachusetts – The Trump administration signaled this week it will rescind the approvals for the New England 1 offshore wind project.

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Q&A

How Rep. Sean Casten Is Thinking of Permitting Reform

A conversation with the co-chair of the House Sustainable Energy and Environment Coalition

Rep. Sean Casten.
Heatmap Illustration

This week’s conversation is with Rep. Sean Casten, co-chair of the House Sustainable Energy and Environment Coalition – a group of climate hawkish Democratic lawmakers in the U.S. House of Representatives. Casten and another lawmaker, Rep. Mike Levin, recently released the coalition’s priority permitting reform package known as the Cheap Energy Act, which stands in stark contrast to many of the permitting ideas gaining Republican support in Congress today. I reached out to talk about the state of play on permitting, where renewables projects fit on Democrats’ priority list in bipartisan talks, and whether lawmakers will ever address the major barrier we talk about every week here in The Fight: local control. Our chat wound up immensely informative and this is maybe my favorite Q&A I’ve had the liberty to write so far in this newsletter’s history.

The following conversation was lightly edited for clarity.

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Spotlight

How to Build a Wind Farm in Trump’s America

A renewables project runs into trouble — and wins.

North Dakota and wind turbines.
Heatmap Illustration/Getty Images

It turns out that in order to get a wind farm approved in Trump’s America, you have to treat the project like a local election. One developer working in North Dakota showed the blueprint.

Earlier this year, we chronicled the Longspur wind project, a 200-megawatt project in North Dakota that would primarily feed energy west to Minnesota. In Morton County where it would be built, local zoning officials seemed prepared to reject the project – a significant turn given the region’s history of supporting wind energy development. Based on testimony at the zoning hearing about Longspur, it was clear this was because there’s already lots of turbines spinning in Morton County and there was a danger of oversaturation that could tip one of the few friendly places for wind power against its growth. Longspur is backed by Allete, a subsidiary of Minnesota Power, and is supposed to help the utility meet its decarbonization targets.

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