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The world’s biggest, most functional city might also be the most pedestrian-friendly. That’s not a coincidence.

For cities that want to reduce the number of cars, bike lanes are a good place to start. They are cheap, usually city-level authorities can introduce them, and they do not require you to raise taxes on people who own cars. What if you want to do something more radical though? What would a city that genuinely wanted to get the car out of its citizens’ lives in a much bigger way do? A city that wanted to make it possible for most people to live decent lives and be able to get around without needing a car, even without needing to get on a bicycle?
There is only one city on Earth I have ever visited that has truly managed this. But it happens to be the biggest city on the planet: Tokyo, the capital of Japan.
In popular imagination, at least in the West, Tokyo is both incredibly futuristic, and also rather foreign and confusing. Before I first visited, in 2017, I imagined it to be an incredibly hectic place, a noisy, bustling megacity. I was on holiday and trying to escape Nairobi, the rather sprawling, low-height, and green city I was living in at the time, and I picked Tokyo largely because I wanted to get as far away from Africa as I could. I needed a break from the traffic jams, the power cuts, the constant negotiation to achieve anything, and the heat. I was looking for an escape somewhere as different as I could think of, and I wanted to ride trains around and look at high-tech skyscrapers and not worry about getting splattered by mud walking in the street. I was expecting to feel bowled over by the height of the buildings, the sheer crush of people, and the noise.
Yet when I emerged from the train station in Shibuya, blinking jetlagged in the morning light after a night flight from Amsterdam, what actually caught me off guard was not the bustle but rather how quiet the city is. When you see cliched images of Tokyo, what invariably is shown are the enormous crowds of pedestrians crossing the roads, or Mount Fuji in the background of the futuristic skyline. I expected something like Los Angeles in Blade Runner, I suppose — futuristic and overwhelming. From photos, Tokyo can look almost unplanned, with neon signs everywhere and a huge variety of forms of architecture. You expect it to feel messy. What I experienced, however, was a city that felt almost like being in a futuristic village. It is utterly calm, in a way that is actually rather strange.
And it took me a little while to realize why. There is simply no traffic noise. No hooting, no engine noise, not even much of the noise of cars accelerating on tarmac. Because there are so few of them. Most of the time you can walk in the middle of the street, so rare is the traffic. There are not even cars parked at the side of the road. That is not true of all of Tokyo, of course. The expressways are often packed. Occasionally, I was told, particularly when it snows, or during holidays when large numbers of people try to drive out to the countryside, jams form that can trap drivers for whole days. But on most residential streets, traffic is almost nonexistent. Even the relatively few cars that you do see are invariably tiny, quiet vehicles.
Among rich cities, Tokyo has the lowest car use in the world. According to Deloitte, a management consultancy, just 12 percent of journeys are completed by private car. It might surprise you to hear that cycling is actually more popular than driving in Tokyo — it accounts for 17 percent of journeys, though the Japanese do not make as much of a big deal out of it as the Dutch do. But walking and public transport dwarf both sorts of vehicles. Tokyo has the most-used public transport system in the world, with 30 million people commuting by train each day. This may sound rather unpleasant. You have probably seen footage of the most crowded routes at rush hour, when staff literally push people onto the carriages to make space, or read about young women being groped in the crush. It happens, but it is not typical. Most of the trains I rode were busy but comfortable, and I was able to get a seat.
And what makes Tokyo remarkable is that the city was almost entirely built after the original city was mostly flattened by American bombers in the Second World War. Elsewhere in the world, cities built after the war are almost invariably car-dependent. Think of Houston, Texas, which has grown from 300,000 people in the 1950s to 10 times that now. Or England’s tiny version, Milton Keynes, which is the fastest-growing city in the country. Or almost any developing world city. Since the advent of the automobile, architects and urban planners worldwide have found it almost impossible to resist building cities around roads and an assumption that most people will drive. Tokyo somehow managed not to. It rebuilt in a much more human-centric way.
It may come as a surprise that Japan is home to the world’s biggest relatively car-free city. After all, Japan is the country that gave the world Mitsubishi, Toyota, and Nissan, and exports vehicles all over the world. And in fairness, a lot of Japanese people do own cars. Overall car ownership in Japan is about 590 vehicles per 1,000 people, which is less than America’s rate of about 800 per 1,000, but comparable to a lot of European countries. On average, there are 1.06 cars per household. But Tokyo is a big exception. In Tokyo, there are only 0.32 cars per household. Most Japanese car owners live in smaller towns and cities than the capital. The highest rate of car ownership, for example, is in Fukui Prefecture, on the western coast of Honshu, one of Japan’s least densely populated areas.
And car ownership in Japan is falling, unlike almost everywhere else on Earth. Part of the reason is just that the country is getting older and the population is falling. But it is also that more and more people live in Tokyo. Annually, Japan is losing about 0.3 percent of its population, or about half a million people a year. Greater Tokyo, however, with its population of 37 million, is shrinking by less than that, or about 0.1 percent a year. And the prefecture of Tokyo proper, with a population of 14 million, is still growing. The reason is that Tokyo generates the best jobs in Japan, and it is also an increasingly pleasant place to live. You may think of Tokyoites as being crammed into tiny apartments, but in fact, the average home in Tokyo has 65.9 square meters of livable floor space (709 square feet). That is still very small—indeed, it is less than the size of the average home in London, where the figure is 80 square meters. But the typical household in London has 2.7 people living in it. In Tokyo, it is 1.95. So per capita, people in Tokyo actually have more space than Londoners.
Overall in fact, people in Tokyo have one of the highest qualities of life in the world. A 2015 survey by Monocle magazine came to the conclusion that Tokyo is the best city on Earth in which to live, “due to its defining paradox of heart-stopping size and concurrent feeling of peace and quiet.” In 2021 The Economist ranked it fourth, after Wellington and Auckland in New Zealand, and another Japanese city, Osaka. Life expectancy overall is 84 years old, one of the highest levels of any city on the planet. A good part of this has to do with the lack of cars. Air pollution is considerably lower than in any other city of equivalent size anywhere in the world. Typical commutes are, admittedly, often fairly long, at 40 minutes each way. But they are not in awful smoggy car traffic.

So how has Tokyo managed it? Andre Sorensen, a professor of urban planning at the University of Toronto, who published a history of urban planning in Japan, told me that Japan’s history has a lot to do with it. Japan’s urbanization happened a little more like some poorer countries — quickly. At the start of the 20th century, just 15 percent of Japanese people lived in cities. Now 91 percent do, one of the highest rates of urbanization in the entire world. That rapid growth meant that Tokyo’s postwar growth was relatively chaotic. Buildings sprawled out into rice paddies, with sewage connections and power often only coming later. Electricity is still often delivered by overhead wires, not underground cables. And yet somehow this haphazard system manages to produce a relatively coherent city, and one that is much easier to get around on foot or by public transport than by car.
Part of the reason, Sorensen explained to me, is just historical chance. Japanese street layouts traditionally were narrow, much like medieval alleys in Europe. Land ownership was often very fragmented, meaning that house builders had to learn to use small plots in a way that almost never happened in Europe or America. And unlike the governments there, the government in postwar Japan was much more concerned with boosting economic growth by creating power plants and industrial yards than it was with creating huge new boulevards through neighborhoods. So the layouts never changed. According to Sorensen’s research, 35 percent of Japanese streets are not actually wide enough for a car to travel down them. More remarkably still, 86 percent are not wide enough for a car to be able to stop without blocking the traffic behind it.
Yet the much bigger reason for Tokyo’s high quality of life is that Japan does not subsidize car ownership in the way other countries do. In fact, owning a car in Tokyo is rather difficult. For one thing, cars are far more enthusiastically inspected than in America or most of Europe. Cars must be checked by officials every two years to ensure that they are still compliant, and have not been modified. That is true in Britain too, but the cost is higher than what a Ministry of Transport test costs. Even a well-maintained car can cost 100,000 yen to inspect (or around $850). On cars that are older than 10 years, the fees escalate dramatically, which helps to explain why so many Japanese sell their cars relatively quickly, and so many of them end up in East Africa or Southeast Asia. On top of that there is an annual automobile tax of up to 50,000 yen, as well as a 5 percent tax on the purchase. And then gasoline is taxed too, meaning it costs around 160 yen per liter, or about $6 a gallon, less than in much of Europe, but more than Americans accept.
And even if you are willing to pay all of the taxes, you cannot simply go and buy a car in the way that you might in most countries. To be allowed to purchase a car, you have to be able to prove that you have somewhere to park it. This approval is issued by the local police, and is known as a shako shomeisho, or “garage certificate.” Without one, you cannot buy a car. This helps to explain why the Japanese buy so many tiny cars, like the so-called Kei cars. It means they can have smaller garages. Even if the law didn’t exist though, owning a car in Japan without having a dedicated parking space for it would be a nightmare. Under a nationwide law passed in 1957, overnight street parking of any sort is completely illegal. So if you were to somehow buy a car with no place to store it, you could not simply park it on the street, because it would get towed the next morning, and you would get fined 200,000 yen (around $1,700). In fact, most street parking of any sort is illegal. There are a few exceptions, but more than 95 percent of Japanese streets have no street parking at all, even during the day.
This, rather than any beautiful architecture, explains why Tokyo’s streets feel so pleasant to walk down, or indeed to look at. There are no cars filling them up. It also means that land is actually valued properly. If you want to own a car, it means that you also have to own (or at least rent) the requisite land to keep it. In rural areas or smaller towns, this is not a huge deal, because land is relatively cheap, and so a permit might only cost 8,000 to 9,000 yen, or about $75 a month. But in Tokyo, the cost will be at least four times that. Garages in American cities can cost that much too, but in Japan there is no cheap street parking option, as in much of New York or Chicago. Most apartment buildings are constructed without any parking at all, because the developers can use the space more efficiently for housing. Only around 42 percent of condominium buildings have parking spaces for residents. Similarly, even if you own a parking space, it is almost never free to park anywhere you might take your car. Parking in Tokyo typically costs 1,000 yen an hour, or around $8.50.
This is a big disincentive to driving. Sorensen told me that when he lived in Tokyo, some wealthy friends of his owned a top-end BMW, which they replaced every few years, because they were car nuts. But because they did not have anywhere to park it near their home, if they wanted to use it, they had to take public transport (or a taxi) to get to it at its garage. As a result, they simply did not use their car very much. In their day-to- day life, they used the trains, the same as everybody else, or took taxis, because that was cheaper than picking up the car. This sort of thing probably helps to explain why the Japanese, despite relatively high levels of car ownership, do not actually drive very far. Car owners in Japan typically drive around 6,000 kilometers per year. That is about half what the average British car owner drives, and less than a third of what the average American does.
Parking rules are not, however, the limit of what keeps cars out of Tokyo. Arguably, an even bigger reason is how infrastructure has been funded in Japan. That is, by the market, rather than directly by taxes. In the 1950s and ’60s, much like Europe and the United States, Japan began building expressways. But unlike in Europe and America, it was starting from a considerably more difficult place. In 1957, Ralph J. Watkins, an American economist who had been invited to advise the Japanese government, reported that “the roads of Japan are incredibly bad. No other industrial nation has so completely neglected its highway system.” Just 23 percent of roads were paved, including just two-thirds of the only highway linking Osaka, Japan’s historical economic hub, to Tokyo.
But unlike America, the idea of making them free never seemed to cross politicians’ minds, probably because Japan in the postwar era was not the world’s richest country. Capital was not freely available. To build the roads, the national government formed corporations such as the Shuto Kōsoku-dōro Kabushiki-gaisha, or Metropolitan Expressway Company, which was formed in greater Tokyo in 1959. These corporations took out vast amounts of debt, which they had to repay, so that the Japanese taxpayer would not be burdened. That meant that tolls were imposed from the very beginning. The tolls had to cover not just the construction cost, but also maintenance and interest on the loans. Today, to drive on the Shuto Expressway costs from 300 to 1,320 yen, or $2.50 to $11 for a “standard-size” automobile. Overall, tolls in Japan are the most expensive in the world — around three times higher than the level charged on the private autoroutes in France, or on average, about 3,000 yen per 100 kilometers ($22 to drive 62 miles).
What that meant was that, from the beginning, roads did not have an unfair advantage in their competition with other forms of transport. And so in Japan, unlike in almost the entire rest of the rich world, the postwar era saw the construction of enormous amounts of rail infrastructure. Indeed, at a time when America and Britain were nationalizing and cutting their railways to cope with falling demand for train travel, in Japan, the national railway company was pouring investment into the system. The world’s first high-speed railway, the Tokaido Shinkansen, was opened in 1964 to coincide with the Tokyo Olympics, with a top speed of 210 kilometers per hour. That was almost double what trains elsewhere mostly managed. From 1964 to 1999, the number of passengers using the Shinkansen grew from 11 million annually to more than 300 million.
Sorensen told me about how in the 1950s and ’60s, the trains were a huge point of national pride for the Japanese government, a bit like car industries were elsewhere. “And justifiably! It was a fantastic invention. To say we can make electric rail go twice as fast. What an achievement.” Thanks to that, the railways ministry became a huge power center in government, rather than a neglected backwater as it often had become elsewhere. In rail, the Japanese “built up expertise in engineering, in bureaucratic resources and capacities, and political clout that just lasted,” he told me. “Whereas the road-building sector was weak.” Elsewhere, building roads became a self-reinforcing process, because as more was poured into constructing them, more people bought cars and demanded more roads. That did not happen in Japan. Instead, the growth in railway infrastructure led to growth in, well, more railway infrastructure.
If you visit Tokyo now, what you will find is that the most hectic, crowded places in the city are all around the train and subway stations. The reason is that Japan’s railway companies (the national firm was privatized in the 1980s) do not only provide railways. They are also big real estate investors. A bit like the firm that built the Metropolitan Railway in the 1930s in Britain, when Japan’s railway firms expanded service, they paid for it by building on the land around the stations. In practice, what that means is that they built lots of apartments, department stores, and supermarkets near (and directly above) railway stations, so that people can get straight off the train and get home quickly. That makes the trains more efficient, because people can get where they need to go without having to walk or travel to and from stations especially far. But it also means that the railways are incredibly profitable, because unlike in the West, they are able to profit from the improvement in land value that they create.
What this adds up to is that Tokyo is one of very few cities on Earth where travel by car is not actively subsidized, and funnily neither is public transport, and yet both work well, when appropriate. However, Tokyo is not completely alone. Several big cities across Asia have managed to avoid the catastrophe (cartastrophe?) that befell much of the western world. Hong Kong manages it nearly as well as Tokyo; there are just 76 cars per 1,000 people in the city state. So too does Singapore, with around 120 per 1,000 people. What those cities have in common, which makes them rather different from Japan, is a shortage of land and a relentless, centralized leadership that recognized early on that cars were a waste of space.
Unfortunately, replicating the Asian model in countries in Europe, America, or Australia from scratch will not be easy. We are starting with so many cars on our roads to begin with, that imposing the sorts of curbs on car ownership that I listed above is almost certainly a political nonstarter. Just look at what happens when politicians in America or Britain try to take away even a modest amount of street parking, or increase the tax on gasoline. People are already invested in cars, sadly. And thanks to that, there is also a chicken-and-egg problem. Because people are invested in cars, they live in places where the sort of public transport that makes life possible for the majority of people in Tokyo is simply not realistic. As it is, constructing rail infrastructure like Japan’s is an extraordinarily difficult task. Look at the difficulties encountered in things like building Britain’s new high-speed train link, or California’s, for example.
And yet it is worth paying attention to Tokyo precisely because it shows that vast numbers of cars are not necessary to daily life. What Tokyo shows is that it is possible for enormous cities to work rather well without being overloaded by traffic congestion. Actually, Tokyo works better than big cities anywhere else. That is why it has managed to grow so large. The trend all over the world for decades now has been toward greater wealth concentrating in the biggest metropolises. The cost of living in somewhere like New York, London, or Paris used to be marginally higher than living in a more modest city. That is no longer the case. And it reflects the fact that the benefits of living in big cities are enormous. The jobs are better, but so too are the restaurants, the cultural activities, the dating opportunities, and almost anything else you can think of. People are willing to pay for it. The high cost of living is a price signal — that is, the fact that people are willing to pay it is an indicator of the value they put on it.
Especially in this post-pandemic era where many jobs can be done from anywhere, lots of New Yorkers could easily decamp to, say, a pretty village upstate, and save a fortune in rent, or cash in on their property values. Actually, hundreds of thousands do every year (well, not only to upstate). But they are replaced by newcomers for the simple reason that New York City is, if you set aside the cost, a pretty great place to live. And yet, if everyone who would like to live in a big city is to be able to, those cities need to be able to grow more. But if they continue to grow with the assumption that the car will be the default way of getting around for a significant proportion of residents, then they will be strangled by congestion long before they ever reach anything like Tokyo’s success. People often say that London or New York are too crowded, but they are wrong. They are only too crowded if you think that it is normal for people to need space not just for them but also for the two tons of metal that they use to get around.
The sheer anger of motorists might mean that banning overnight parking on residential streets proves difficult. But if we want to be bold, some of Tokyo’s other measures are more realistic. We could, for example, do a lot more to build more housing around public transport, and use the money generated to help contribute to the network. According to the Centre for Cities, a British think tank, there are 47,000 hectares of undeveloped land (mostly farmland) within a 10-minute walk of a railway station close to London or another big city. That is enough space to build two million homes, more than half of which would be within a 45-minute commute to or from London. The reason we do not develop the land at the moment is because it is mostly Metropolitan Green Belt, a zoning restriction created in the late 1940s by the Town and Country Planning Act intended to contain cities and stop them sprawling outward. But the problem with it as it works in Britain at the moment is that it does not stop sprawl — it just pushes it further away from cities, into places where there really is no hope of not using a car.
Developing the green belt too would not be popular. People have an affection for fields near their homes, and they do not necessarily want the trains they use to be even more crowded. But there are projects that show it is possible to overcome NIMBYism. In Los Angeles in 2016, voters approved the Transit Oriented Communities Incentive Program, which creates special zoning laws in areas half a mile from a major transit stop (typically, in L.A., a light rail station). This being Los Angeles, it is fairly modest. One of the rules is that the mandatory parking minimums applied are restricted to a maximum of 0.5 car parking spaces per bedroom, and total parking is not meant to exceed more than one space per apartment, which is still rather a lot of parking. But nonetheless, it does allow developers to increase the density of homes near public transport, and it has encouraged developers to build around 20,000 new homes near public transport that probably would not have been constructed otherwise. These are small but real improvements.
Ultimately, no city will be transformed into Tokyo overnight, nor should any be, at least unless a majority of the population decides that they would like it. I am trying to persuade them; for now, not everyone is as enamored with the Japanese capital as I am. But NIMBYism and other political problems can be gradually overturned, if the arguments are made in the right way, even in the most automotive cities.
This article was excerpted from Daniel Knowles’ book Carmageddon: How Cars Make Life Worse and What to Do About It, published by Abrams Press ©2023.
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Deep Fission says that building small reactors underground is both safer and cheaper. Others have their doubts.
In 1981, two years after the accident at Three Mile Island sent fears over the potential risks of atomic energy skyrocketing, Westinghouse looked into what it would take to build a reactor 2,100 feet underground, insulating its radioactive material in an envelope of dirt. The United States’ leading reactor developer wasn’t responsible for the plant that partially melted down in Pennsylvania, but the company was grappling with new regulations that came as a result of the incident. The concept went nowhere.
More than a decade later, the esteemed nuclear physicist Edward Teller resurfaced the idea in a 1995 paper that once again attracted little actual interest from the industry — that is, until 2006, when Lowell Wood, a physicist at the Lawrence Livermore National Laboratory, proposed building an underground reactor to Bill Gates, who considered but ultimately abandoned the design at his nuclear startup, TerraPower.
Now, at last, one company is working to make buried reactors a reality.
Deep Fission proposes digging boreholes 30 inches in diameter and about a mile deep to house each of its 15-megawatt reactors. And it’s making progress. In August, the Department of Energy selected Deep Fission as one of the 10 companies enrolled in the agency’s new reactor pilot program, meant to help next-generation startups split their first atoms by July. In September, the company announced a $30 million reverse merger deal with a blank check firm to make its stock market debut on the lesser-known exchange OTCQB. Last month, Deep Fission chose an industrial park in a rural stretch of southeastern Kansas as the site of its first power plant.
Based in Berkeley, California, the one-time hub of the West Coast’s fading anti-nuclear movement, the company says its design is meant to save money on above-ground infrastructure by letting geology do the work to add “layers of natural containment” to “enhance safety.” By eliminating much of that expensive concrete and steel dome that encases the reactor on the surface, the startup estimates “that our approach removes up to 80% of the construction cost, one of the biggest barriers for nuclear, and enables operation within six months of breaking ground.”
“The primary benefit of placing a reactor a mile deep is cost and speed,” Chloe Frader, Deep Fission’s vice president of strategic affairs, told me. “By using the natural pressure and containment of the Earth, we eliminate the need for the massive, above-ground structures that make traditional nuclear expensive and slow to build.”
“Nuclear power is already the safest energy source in the world. Period,” she said. “Our underground design doesn’t exist because nuclear is unsafe, it exists because we can make something that is already extremely safe even safer, simpler, and more affordable.”
But gaining government recognition, going public, and picking a location for a first power plant may prove the easy part. Convincing others in the industry that its concept is a radical plan to cut construction costs rather than allay the public’s often-outsize fear of a meltdown has turned out to be difficult, to say nothing of what actually building its reactors will entail.
Despite the company’s recent progress, I struggled to find anyone who didn’t have a financial stake in Deep Fission willing to make the case for its buried reactors.
Deep Fission is “solving a problem that doesn't actually exist,” Seth Grae, the chief executive of the nuclear fuel company Lightbridge, told me. In the nearly seven decades since fission started producing commercial electrons on the U.S. grid, no confirmed death has ever come from radiation at a nuclear power station.
“You’re trying to solve a political problem that has literally never hurt anyone in the entire history of our country since this industry started,” he said. “You’re also making your reactors more expensive. In nuclear, as in a lot of other projects, when you build tall or dig deep or lift big and heavy, those steps make the projects much more expensive.”
Frader told me that subterranean rock structures would serve “as natural containment, which also enhances safety.” That’s true to some extent. Making use of existing formations “could simplify surface infrastructure and streamline construction,” Leslie Dewan, a nuclear engineer who previously led a next-generation small modular reactor startup, told IEEE Spectrum.
If everything pans out, that could justify Deep Fission’s estimate that its levelized cost of electricity — not the most dependable metric, but one frequently used by solar and wind advocates — would be between $50 and $70 per megawatt-hour, lower than other SMR developers’ projections. But that’s only if a lot of things go right.
“A design that relies on the surrounding geology for safety and containment needs to demonstrate a deep understanding of subsurface behavior, including the stability of the rock formations, groundwater movement, heat transfer, and long-term site stability,” Dewan said. “There are also operational considerations around monitoring, access, and decommissioning. But none of these are necessarily showstoppers: They’re all areas that can be addressed through rigorous engineering and thoughtful planning.”
As anyone in the geothermal industry can tell you, digging a borehole costs a lot of money. Drilling equipment comes at a high price. Underground geology complicates a route going down one mile straight. And not every hole that’s started ends up panning out, meaning the process must be repeated over and over again.
For Deep Fission, drilling lots of holes is part of the process. Given the size of its reactor, to reach a gigawatt — the output of one of Westinghouse’s flagship AP1000s, the only new type of commercial reactor successfully built from scratch in the U.S. this century — Deep Fission would need to build 67 of its own microreactors. That’s a lot of digging, considering that the diameters of the company’s boreholes are on average nearly three times wider than those drilled for harvesting natural gas or geothermal.
The company isn’t just distinguished by its unique approach. Deep Fission has a sister company, Deep Isolation, that proposes burying spent nuclear fuel in boreholes. In April, the two startups officially partnered in a deal that “enables Deep Fission to offer an end-to-end solution that includes both energy generation and long-term waste management.”
In theory, that combination could offer the company a greater social license among environmental skeptics who take issue with the waste generated from a nuclear plant.
In 1982, Congress passed a landmark law making the federal government responsible for the disposal of all spent fuel and high-level radioactive waste in the country. The plan centered on building a giant repository to permanently entomb the material where it could remain undisturbed for thousands of years. The law designated Yucca Mountain, a rural site in southwestern Nevada near the California border, as the exclusive location for the debut repository.
Construction took years to start. After initial work got underway during the Bush administration, Obama took office and promptly slashed all funding for the effort, which was opposed by then-Senate Majority Leader Harry Reid of Nevada; the nonpartisan Government Accountability Office clocked the move as a purely political decision. Regardless of the motivation, the cancellation threw the U.S. waste disposal strategy into limbo because the law requires the federal government to complete Yucca Mountain before moving on to other potential storage sites. Until that law changes, the U.S. effort to find a permanent solution to nuclear waste remains in limbo, with virtually all the spent fuel accumulated over the years kept in intermediate storage vessels on site at power plants.
Finland finished work on the world’s first such repository in 2024. Sweden and Canada are considering similar facilities. But in the U.S., the industry is moving beyond seeing its spent fuel as waste, as more companies look to start up a recycling industry akin to those in Russia, Japan, and France to reprocess old uranium into new pellets for new reactors. President Donald Trump has backed the effort. The energy still stored in nuclear waste just in this country is sufficient to power the U.S. for more than a century.
Even if Americans want an answer to the nuclear waste problem, there isn’t much evidence to suggest they want to see the material stored near their homes. New Mexico, for example, passed a law barring construction of an intermediate storage site in 2023. Texas attempted to do the same, but the Supreme Court found the state’s legislation to be in violation of the federal jurisdiction over waste.
While Deep Fission’s reactors would be “so far removed from the biosphere” that the company seems to think the NRC will just “hand out licenses and the public won’t worry,” said Nick Touran, a veteran engineer whose consultancy, What Is Nuclear, catalogs reactor designs and documents from the industry’s history.
“The assumption that it’ll be easy and cheap to site and license this kind of facility is going to be found to be mistaken,” he told me.
The problem with nuclear power isn’t the technology, Brett Rampal, a nuclear expert at the consultancy Veriten, told me. “Nuclear has not been suffering from a technological issue. The technology works great. People do amazing things with it, from curing cancer to all kinds of almost magical energy production,” he told me. “What we need is business models and deployment models.”
Digging a 30-inch borehole a mile deep would be expensive enough, but Rampal also pointed out that lining those shafts with nuclear-grade steel and equipping them with cables would likely pencil out to a higher price than building an AP1000 — but with one one-hundredth of the power output.
Deep Fission insists that isn’t the case, and that the natural geology “removes the need for complex, costly pressure vessels and large engineered structures” on the surface.
“We still use steel and engineered components where necessary, but the total material requirements are a fraction of those used in a traditional large-scale plant,” Frader said.
Ultimately, burying reactors is about quieting concerns that should be debunked head on, Emmet Penney, a historian of the industry and a senior fellow at the Foundation for American Innovation, a right-leaning think tank that advocates building more reactors in the U.S., told me.
“Investors need to wake up and realize that nuclear is one of the safest power sources on the planet,” Penney said. “Otherwise, goofy companies will continue to snow them with slick slide decks about solving non-issues.”
On energy efficiency rules, Chinese nuclear, and Japan’s first offshore wind
Current conditions: Warm air headed northward up the East Coast is set to collide with cold air headed southward over the Great Lakes and Northeast, bringing snowfall followed by higher temperatures later in the week • A cold front is stirring up a dense fog in northwest India • Unusually frigid Arctic air in Europe is causing temperatures across northwest Africa to plunge to double-digit degrees below seasonal norms, with Algiers at just over 50 degrees Fahrenheit this week.

Oil prices largely fell throughout 2025, capping off December at their lowest level all year. Spot market prices for Brent crude, the leading global benchmark for oil, dropped to $63 per barrel last month. The reason, according to the latest analysis of the full year by the Energy Information Administration, is oversupply in the market. China’s push to fill its storage tanks kept prices from declining further. Israel’s June 13 strikes on Iran and attacks on oil infrastructure between Russia and Ukraine briefly raised prices throughout the year. But the year-end average price still came in at $69 per barrel, the lowest since 2020, even when adjusted for inflation.

The price drop bodes poorly for reviving Venezuela’s oil industry in the wake of the U.S. raid on Caracas and arrest of the South American country’s President Nicolás Maduro. At such low levels, investments in new infrastructure are difficult to justify. “This is a moment where there’s oversupply,” oil analyst Rory Johnston told my colleague Matthew Zeitlin yesterday. “Prices are down. It’s not the moment that you’re like, I’m going to go on a lark and invest in Venezuela.”
The Energy Department granted a Texas company known for recycling defunct tools from oil and gas drilling an $11.5 million grant to fund an expansion of its existing facility in a rural county between San Antonio and Dallas. The company, Amermin, said the funding will allow it to increase its output of tungsten carbide by 300%, “reducing our reliance on foreign nations like China, which produces 83%” of the world’s supply of the metal used in all kinds of defense, energy, and hardware applications. “Our country cannot afford to rely on our adversaries for the resources that power our energy industry,” Representative August Pfluger, a Texas Republican, said in a statement. “This investment strengthens our district’s role in American energy leadership while providing good paying jobs to Texas families.”
That wasn’t the agency’s only big funding announcement. The Energy Department gave out $2.7 billion in contracts for enriched uranium, with $900 million each to Maryland-based Centrus Energy, the French producer Orano, and the California-headquartered General Matter. “President Trump is catalyzing a resurgence in the nation’s nuclear energy sector to strengthen American security and prosperity,” Secretary of Energy Chris Wright said in a press release. “Today’s awards show that this Administration is committed to restoring a secure domestic nuclear fuel supply chain capable of producing the nuclear fuels needed to power the reactors of today and the advanced reactors of tomorrow.”
Low-income households in the United States pay roughly 30% more for energy per square foot than households who haven’t faced trouble paying for electricity and heat in the past, federal data shows. Part of the problem is that the national efficiency standards for one of the most affordable types of housing in the nation, manufactured homes, haven’t been updated since 1994. Congress finally passed a law in 2007 directing the Department of Energy to raise standards for insulation, and in 2022, the Biden administration proposed new rules to increase insulation and reduce air leaks. But the regulations had yet to take effect when President Donald Trump returned to office last year. Now the House of Representatives is prepared to vote on legislation to nullify the rules outright, preserving the standards set more than three decades ago. The House Committee on Rules is set to vote on advancing the bill as early as Tuesday night, with a full floor vote likely later in the week. “You’re just locking in higher bills for years to come if you give manufacturers this green light to build the homes with minimal insulation,” Mark Kresowik, senior policy director of the American Council for an Energy-Efficient Economy, told me.
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The newest reactor at the Zhangzhou nuclear station in Fujian Province has officially started up commercial operation as China’s buildout of new atomic power infrastructure picks up pace this year. The 1,136-megawatt Hualong One represents China’s leading indigenous reactor design. Where once Beijing preferred the top U.S. technology for large-scale reactors, the Westinghouse AP1000, the Hualong One’s entirely domestic supply chain and design that borrows from the American standard has made China’s own model the new leader.
In a sign of just how many reactors China is building — at least 35 underway nationwide, as I noted in yesterday’s newsletter — the country started construction on two more the same week the latest Hualong One came online. World Nuclear News reported that first concrete has been poured for a pair of CAP1000 reactors, the official Chinese version of the Westinghouse AP1000, at two separate plants in southern China.
Back in October, when Japan elected Sanae Takaichi as its first female prime minister, I told you about how the arch-conservative leader of the Liberal Democratic Party planned to refocus the country’s energy plans on reviving the nuclear industry. But don’t count out offshore wind. Unlike Europe’s North Sea or the American East Coast, the sharp continental drop in Japan’s ocean makes rooting giant turbines to the sea floor impossible along much of its shoreline. But the Goto Floating Wind Farm — employing floating technology under consideration on the U.S. West Coast, too — announced the start of commercial operations this week, pumping nearly 17 megawatts of power onto the Japanese grid. Japanese officials last year raised the country’s goal for installed capacity of offshore wind to 10 gigawatts by 2030 and 45 gigawatts by 2040, Power magazine noted, so the industry still has a long way to go.
Beavers may be the trick to heal nature’s burn scars after a wildfire. A team of scientists at the U.S. Forest Service and Colorado State University are building fake beaver dams in scorched areas to study how wetlands created by the dams impact the restoration of the ecosystem and water quality after a blaze. “It’s kind of a brave new world for us with this type of work,” Tim Fegel, a doctoral candidate at Colorado State, who led the research, said in a press release.
Rob talks about the removal of Venezuela’s Nicolás Maduro with Commodity Context’s Rory Johnston.
Over the weekend, the U.S. military entered Venezuela and captured its president, Nicolás Maduro, and his wife. Maduro will now face drug and gun charges in New York, and some members of the Trump administration have described the operation as a law enforcement mission.
President Donald Trump has taken a different tack. He has justified the operation by asserting that America is going to “take over” Venezuela’s oil reserves, even suggesting that oil companies might foot the bill for the broader occupation and rebuilding effort. Trump officials have told oil companies that the U.S. might not help them recover lost assets unless they fund the American effort now, according to Politico.
Such a move seems openly imperialistic, ill-advised, and unethical — to say the least. But is it even possible? On this week’s episode of Shift Key, Rob talks to Rory Johnston, a Toronto-based oil markets analyst and the founder of Commodity Context. They discuss the current status of the Venezuelan oil industry, what a rebuilding effort would cost, and whether a reopened Venezuelan oil industry could change U.S. energy politics — or even, as some fear, bring about a new age of cheap fossil fuels.
Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap, and Jesse Jenkins, a professor of energy systems engineering at Princeton University. Jesse is off this week.
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Here is an excerpt from our conversation:
Robinson Meyer: First of all, does Venezuela have the world’s largest hydrocarbon reserves — like, proven hydrocarbon reserves? And number two, let’s say that Trump has made some backdoor deal with the existing regime, that these existing issues are ironed ou to actually use those reserves. What kind of investment are we talking about on that end?
Rory Johnston: The mucky answer to this largest reserve question is, there’s lots of debate. I will say there’s a reasonable claim that at one point Venezuela — Venezuela has a lot of oil. Let’s just say it that way: Venezuela has a lot of oil, particularly the Orinoco Belt, which, again, similar to the oil sands we’re talking about —
Meyer: This is the Orinoco flow. We’re going to call this the Orinoco flow question.
Johnston: Yeah, exactly, that. Similar to the Canadian oil sands, we’re talking about more than a trillion barrels of oil in place, the actual resource in the ground. But then from there you get to this question of what is technically recoverable. Then from there, what is economically recoverable? The explosion in, again, both Venezuelan and Canadian reserve estimates occurred during that massive boom in oil prices in the mid-2000s. And that created the justification for booking those as reserves rather than just resources.
So I think that there is ample — in the same way, like, Russia and the United States don’t actually have super impressive-looking reserves on paper, but they do a lot with them, and I think in actuality that matters a lot more than the amount of technical reserves you have in the ground. Because as we’ve seen, Venezuela hasn’t been able to do much with those reserves.
So in order to, how to actually get that operating, this is where we get back to the — we’re talking tens, hundreds of billions of dollars, and a lot of time. And these companies are not going to do that without seeing a track record of whatever government replaces the current. The current vice president, his acting president — which I should also note, vice president and oil minister, which I think is particularly relevant here — so I think there’s lots that needs to happen. But companies are not going to trip over themselves to expose themselves to this risk. We still don’t know what the future is going to look like for Venezuela.
Mentioned:
The 4 Things Standing Between the U.S. and Venezuela’s Oil
Trump admin sends tough private message to oil companies on Venezuela
Previously on Shift Key: The Trump Policy That Would Be Really Bad for Oil Companies
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Music for Shift Key is by Adam Kromelow.