You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:
The oldest climate story isn’t about a wildfire or a hurricane, a heat wave or a drought. It’s about a flood.
“The deluge is terrifying not just for its destructive capacity but also for the way it undoes all that has been accomplished, brings us back to the fathomless chaos of beginning,” The New Yorker’s Avi Steinberg writes of this most primordial human fear, the story of which has been echoed across cultures and religions from the Mesopotamian Epic of Gilgamesh to the Bible’s Old Testament to the Ancient Greek Deucalion Myth to stories told by Native peoples across North America. It might also be humankind’s oldest cautionary tale: When the rain starts and the waters begin to rise, pay attention.
In the United States, floods are the deadliest extreme weather phenomenon after heat waves. In particular, flash floods — which the National Oceanic and Atmospheric Administration distinguishes as flooding that “begins within 6 hours, and often within 3 hours, of ... heavy rainfall” — often take people by surprise, or are dangerously underestimated.
With Hurricane Hilary threatening to dump potentially a year’s worth of rain on parts of the southwestern United States in the span of 72 hours, learning how to react to rising waters ahead of time can be life-saving. This is what you need to know.
Unlike learning your personal wildfire risk, which is relatively easy, it can be frustrating to try to figure out the flood risk of your home.
FEMA publishes flood maps (you can search by your address here), but the shading key can be hard to make out and I had difficulty getting the images to load. I had my best luck navigating to this version of the map, clicking on the location I was interested in, then clicking to the second page of the pop-up information, where you will see “Flood Hazard Zones” followed by a letter. The letters B, C, and X designate moderate- to low-risk flood areas (though the risk in these locations is not non-existent!) while high-risk areas are marked with A or V.
An example of where to find your individual flood hazard zone on the FEMA flood map.FEMA
Personally, I preferred the clear information laid out at RiskFactor.com. The website told me my neighborhood’s risk (I live by the river in New York City, so mine is “moderate”) and the number of properties in the area that have a “greater than ... 26% chance of being severely affected by flooding over the next 30 years” (for my neighborhood, 16%!). The website will even estimate the “max depth of flooding” of a specific home or building for this year and in the next 30 years.
If you are in a moderate- to high-risk area on either map, you should take steps to prepare for a flash flood. Even if you score lower, you might want to consider preparing your house because minimal risk doesn’t denote zero risk.
Either way, you should read the below section about “what to do if you’re in a car during a flash flood,” since such a scenario can happen to anyone.
You don’t have to wait for a flash flood warning to begin to prepare for the worst. But if you’re in a situation where you can anticipate flooding — like much of Southern California, Nevada, and southwestern Arizona can right now — you should prepare ahead of time to run errands so you won’t need to leave the house during the storm. Keep in mind, the best way to stay safe during a flash flood is to not encounter the flood in the first place.
Make sure you have enough food for several days, as well as enough pet food for your animals. Also be sure to pick up any prescriptions or medications you might need. Anticipate any other reasons why you might need to leave your home and try to prevent or limit them ahead of time.
Confirm that the contents of your “go bag” or emergency evacuation kit are up-to-date. Here’s a generic checklist of what should go in it, as well as a version in Spanish.
Check the batteries in your flashlights and charge backup batteries for electronics like cell phones, in case the power goes out.
Clean up your yard if you have time; secure outdoor furniture so it doesn’t get blown around.
Prepare electricity-free entertainment options (now is the time to start brushing up on gin rummy).
Check on neighbors or relatives who might not be aware of the coming storm or have made preparations yet.
I can't believe I have to write this, but absolutely do not order Doordash or Uber Eats or food or products from any other courier service during flash flood conditions. Doing so puts other people in direct danger. Your ramen craving can be satisfied later.
Never wait out a storm in a basement or an apartment that is below ground level if you live in an area with moderate to high flood risk; move to a higher floor or find a different location to shelter in. Even if your home or basement has been okay in previous rainstorms, major flood events can overwhelm city sewer systems and back up water into areas it hasn’t reached before. As Reza Khanbilvardi, a professor of civil engineering and hydrology at City College of New York, told Gothamist after Hurricane Ida killed dozens in New York, New Jersey, and Connecticut in 2021, “Apartments in cellars and basements can be death traps.” Paved urban areas can be especially dangerous in these conditions.
Follow potential evacuation alerts on your phone or on a radio (yes, they still exist!). Sign up for alerts now if you haven’t already.
Seal your important documents in a gallon-size freezer bag or other waterproof bag if you anticipate needing to evacuate, The New York Times suggests.
Unplug electronics and move any valuables to higher floors or locations if you have time to prepare for an evacuation.
If water enters your home, evacuate immediately with your go bag. Do not wait or try to retrieve any additional items. One of the most common ways people get hurt during flash floods is by waiting too long to evacuate. Use your best judgment — if it feels safer to climb to a higher floor than to try to drive to higher ground, do so, but avoid sheltering in an attic where FEMA warns you could get trapped. “Go on the roof only if necessary,” FEMA writes, and “signal for help.”
Do not attempt to walk or swim through floodwaters. Six inches of moving water is enough to knock an adult off their feet. Electrocution is also the second-biggest cause of death during a flood after drowning; never attempt to turn off a circuit breaker box or touch appliances if you are wet or standing in water.
If you come in contact with floodwaters, be sure to wash that area of your body very well when you reach safety.
If at all possible, avoid driving during flash flood conditions. Of course, this isn’t always possible — often people are out when they get caught in a storm. The National Weather Service reports that nearly half of flash-flood fatalities are vehicle-related and the “majority” of victims are male.
First and foremost, never, ever drive through floodwaters or around a roadblock or barrier. “Turn around, don’t drown” is a well-worn NWS slogan for a reason. Just 6 inches of flowing water can move a car and just 12 inches can carry it away — it doesn’t matter how good of a driver you are.
Additionally, even if the water looks shallow, it might not be. “Do not attempt to cross a flooded road even if the car in front of you made it through,” meteorologist Bonnie Schneider writes in her book Extreme Weather.
If your car stalls in water, first responders want you to remember “seatbelt, windows, out.” Do not waste valuable time trying to call 911 and wait for rescue. Unbuckle immediately so you are free to move. Then roll down the windows so that if the car’s electrical system shorts out, you still have a means of escape. (As a backup, buy a “Lifehammer” to punch your way through the window and out of your car. If you do not have a Lifehammer or something similar, the pointy metal ends of a headrest can work in a pinch, The New York Times reports.)
At this point, there is “no right answer,” Joseph Bushra, the medical director with Narberth Ambulance, told WHYY. You need to assess the situation. If it is safe to exit your car and escape to higher ground, do so, but plan your path before getting out of the car and remember, just 6 inches of water can knock an adult over.
If it is not safe to try to make it to higher ground, then you need to get on top of your car. Turn on your hazard lights to make the car visible to first responders. Evacuate children first, starting with the oldest child, and tell them to hang onto whatever they can, The New York Times advises. Once you have evacuated and are on top of your car, then call 911.
It’s not called a “worst-case scenario” for nothing. So what do you do if you end up in the water during a flash flood?
Your number one priority should be to try to get out of the water as quickly as you can. Climb a tree, a building, a car or truck, or head toward any available higher ground.
If you are forced to swim, move perpendicular to the current. Keep in mind this is a last possible resort: “People need to realize that most people who lose their footing in a flash flood don’t get out,” Julie Munger, the founder of Sierra Rescue International, told The New York Times.
If swimming to safety isn’t possible, the Riverside County Fire Department recommends orienting your body so you’re on your back, with your feet down-current, so you can use them to move debris out of the way. “Most victims in swift water die when they get pinned against obstacles, or get trapped in submerged debris and vegetation,” the department writes. Get out of the water or on top of something as quickly as possible — and hold on tight.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
On China’s carbon goal, a U.S. uranium ramp up, and Microsoft’s green steel deal
Current conditions: Tropical Storm Humberto formed in the Atlantic and is expected to strengthen into a hurricane this weekend, bringing rip currents to Bermuda, the Bahamas, and the U.S. East Coast • Severe storms could bring winds of up to 75 miles per hours throughout the Mid-Atlantic region • As its death toll climbs to 25 in Taiwan and the Philippines, Typhoon Ragasa is weakening as it moves toward Southeast Asia.
The Trump administration is stepping up its efforts to crack down on states’ policies to curb climate-changing pollution, asking the public to submit examples of laws with “significant adverse effects” on the economy. So far, E&E News reported Thursday, 251 respondents have given the Justice Department potential targets, including bans on fossil fuel appliances in new buildings and policies to bar the use of so-called forever chemicals in states such as Maine, New Mexico, and Minnesota.
The Department of Justice first posted a call for comments in the Federal Register in August to find state climate policies that are “burdening” energy development. Already, the administration has filed lawsuits against Vermont and New York to challenge their climate Superfund laws, and sued Hawaii and Michigan to thwart those states’ plans to sue fossil fuel companies over the effects of global warming. This month, the administration urged the Supreme Court to side with industry and transfer climate lawsuits from state to federal courts.
Chinese President Xi Jinping. Suo Takekuma - Pool/Getty Images
When President Donald Trump shredded the United States’ climate goals and started the process to withdraw from the Paris climate accords on his first day in office, campaigners hoped China and the European Union would pursue more ambitious carbon-cutting targets to make up the difference. But that’s not what’s happening. On Wednesday, Chinese President Xi Jinping announced plans to cut emissions by just 7% to 10% by 2035. The European Union complained that Beijing’s new goal “falls well short.” But, as I reported in this newsletter, the EU failed to muster support across the bloc for its own new binding carbon targets ahead of the United Nations General Assembly this week.
Get Heatmap AM directly in your inbox every morning:
Centrus, the American uranium enrichment giant spun out from the federal government in 1998, announced on Thursday an expansion of its Piketon, Ohio, nuclear fuel facility. The new production line is expected to add 300 jobs at the plant and bolster output of both the low-enriched uranium used in traditional reactors and the High-Assay Low-Enriched Uranium, or HALEU, needed for many of the new next-generation small modular reactors under development. While the company said the size and scope of the expansion depend on federal funding decisions from the Department of Energy, the plans “would represent a multibillion-dollar private and public investment.” After decades of decline, the surge in electricity growth has spurred newfound interest in atomic energy. As Heatmap’s Katie Brigham wrote last month, “the nuclear power dealmaking boom is real.”
“The time has come to restore America’s ability to enrich uranium at scale,” Centrus CEO Amir Vexler said in a statement. “We are planning a historic, multi-billion-dollar investment right here in Ohio — supported by a nationwide supply chain to do just that. When it comes to powering our energy future, it’s time to stop relying on foreign, state-owned corporations and start investing in American technology, built by American workers.”
Microsoft this week inked a deal to buy green steel from a first-of-a-kind facility in northern Sweden, Canary Media’s Maria Gallucci reported Thursday. While the tech giant doesn’t directly buy construction materials itself for its data centers, Microsoft agreed to work with its equipment suppliers to ensure that Stegra’s green steel is used in some of its server farms in Europe. As part of the deal, Microsoft will also buy “environmental attribute certificates” that represent the emissions reductions provided by Stegra’s steel and allow the steelmaker to sell its “near-zero emission” metal into the European market at a significant markdown, putting the more expensive green steel in line with the prices of fossil-fueled steel. Efforts to green the U.S. steel industry have stalled out since Trump returned to office. But the White House’s decision to claim a “golden share” of steelmaker U.S. Steel as part of its approval of Japanese rival Nippon Steel’s takeover earlier this year could, as Heatmap’s Matthew Zeitlin wrote this summer, give a future administration the leverage to push greening the supply in the future.
The National Association for the Advancement of Colored People came out against a proposal for a 4.5 million-square-foot data center campus in Bessemer, Alabama, on the grounds that the 70% Black city is already home to major emitters of greenhouse gases and an energy-hungry server farm would make that worse. In an open letter cited in Inside Climate News on Thursday, the state chapter of the NAACP said “the impacts of the data center do not justify its construction.” Residents “are fighting for cleaner air as these plants contribute significantly to the current climate crisis and health issues in the county.” It’s part of a mounting backlash to the growth of data centers. Earlier this month, a Heatmap Pro survey found that only 44% of Americans would welcome a data center in their neighborhood, making them significantly less popular than even a gas-fired power station.
A new analysis of a million-year-old human skull discovered in China could radically upend the scientific consensus on the origins of Homo sapiens, raising the possibility that our species developed in Asia rather than Africa. “This changes a lot of thinking because it suggests that by one million years ago our ancestors had already split into distinct groups, pointing to a much earlier and more complex human evolutionary split than previously believed,” Chris Stringer, an anthropologist and research leader in human evolution at the Natural History Museum in London, told The Guardian. “It more or less doubles the time of origin of Homo sapiens.”
In a special episode of Shift Key, Rob interviews Representative Sean Casten about his new energy price bill, plus Emerald AI’s Arushi Sharma Frank.
Artificial intelligence is helping to drive up electricity demand in America. Energy costs are rising, and utilities are struggling to adjust. How should policymakers — and companies — respond to this moment?
On this special episode of Shift Key, recorded live at Heatmap House during New York Climate Week, Rob leads a conversation about some potential paths forward. He’s joined first by Representative Sean Casten, the coauthor of a new Democratic bill seeking to lower electricity costs for consumers. How should the grid change for this new moment, and what can Democrats do to become the party of cheap energy?
Then he’s joined by Arushi Sharma Frank, an adviser to Emerald AI, an Nvidia-seeded startup that helps data centers flexibly adjust their power consumption to better serve the grid. Sharma Frank has worked for utilities and tech companies — she helped stand up Tesla’s energy business in Texas — and she discusses what utilities, tech companies, and startups can learn from each other?
Congressman Casten represents Illinois’s 6th congressional district in the U.S. House of Representatives. He is a former clean energy entrepreneur and CEO, and he sits on the House Financial Services Committee and the Joint Economic Committee. He is also vice chair of the House Sustainable Energy and Environment Coalition.
Arushi Sharma Frank is an adviser to She has previously worked in roles at Tesla, Exelon Constellation, the Electric Power Supply Association, and the American Gas Association. She is a non-resident expert at the Center for Strategic and International Studies, a nonpartisan think tank in Washington, D.C.
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.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, YouTube, or wherever you get your podcasts.
You can also add the show’s RSS feed to your podcast app to follow us directly.
Here is an excerpt from our conversation:
Robinson Meyer: Earlier you said something that I want to go back to, which was that our energy system doesn’t reward cheap energy, and it hasn’t been set up to reward cheap energy. What did you mean by that?
Representative Sean Casten: So at a high level, no market, left to its own devices, will reward cheap things. Because if I’m a buyer, I want to buy things for cheap. If you’re a seller, you want to sell things for a lot of money. I remember my dad, when I was a kid, had a little paperweight on his desk. It was an oil barrel, and on one side it said, “Relax, the price will go down,” and on the other side it said, “Relax, the price will go up.” And depending on which side of a negotiation you were on, that was how you pointed the oil barrel.
What’s happened in the energy sector that has made that hard is that, because it is such a highly regulated sector, we’ve vastly over-advantaged the producers in what would otherwise be an even negotiation. So, for example, if you as a consumer want to put a solar panel on the roof of your house, you have to get permission from your local utility, who’s going to lose the revenue, who can raise all sorts of technical objections and do that.
If you have a solar panel and you say, boy, there’s hours when I’m making more power than I want, or than I need, maybe my neighbor would like to have some of my excess — well, you’re not a regular utility. You’re not allowed to do that. Your neighbor can’t buy it from you. These are because of laws we’ve set up that says only that utility has the right to do it.
Outside of the electric space, there’s a law that’s been on the book since 1935, the Natural Gas Act, that says that you cannot build a gas export facilities in the United States unless it is in the national interest. Is it in the national interest to raise people’s price of gas? That was never specified in the act. And so when the Trump administration went through and approved all those assets — which by the way, the Biden administration had shut down in part because they said it’s in the national interest — they said, well, we think it’s in the national interest to look out for our gas producers.
Somewhat more recently than that, when the price of oil collapsed during COVID in April of 2020, Trump called the Saudis and said, we are going to withhold military aid from Saudi Arabia unless you raise the price of oil. The Saudis flinched and the price of oil went up, and he was praised on the cover of all the business magazines as saving our oil industry.
Why didn’t we do the same thing two years later when everybody was complaining about the price of oil being so high and we had a Democrat in the White House? We’ve always had this feeling, like, I need to look out for producers, because the producers have had more political clout. We’ve connected those things together, and you can be angry about that. You can be embarrassed about that. Or you can see it as an unbelievable opportunity to generate a tremendous amount of wealth to lower energy costs — and oh, by the way, cut a bunch of CO2 emissions.
Mentioned:
Democrats Bid to Become the Party of Cheap Energy
Heatmap’s Katie Brigham on Emerald AI, a.k.a. The Software That Could Save the Grid
This episode of Shift Key is sponsored by ...
Salesforce, presenting sponsor of Heatmap House at New York Climate Week 2025.
The failure of the once-promising sodium-ion manufacturer caused a chill among industry observers. But its problems may have been more its own.
When the promising and well funded sodium-ion battery company Natron Energy announced that it was shutting down operations a few weeks ago, early post-mortems pinned its failure on the challenge of finding a viable market for this alternate battery chemistry. Some went so far as to foreclose on the possibility of manufacturing batteries in the U.S. for the time being.
But that’s not the takeaway for many industry insiders — including some who are skeptical of sodium-ion’s market potential. Adrian Yao, for instance, is the founder of the lithium-ion battery company EnPower and current PhD student in materials science and engineering at Stanford. He authored a paper earlier this year outlining the many unresolved hurdles these batteries must clear to compete with lithium-iron-phosphate batteries, also known as LFP. A cheaper, more efficient variant on the standard lithium-ion chemistry, LFP has started to overtake the dominant lithium-ion chemistry in the electric vehicle sector, and is now the dominant technology for energy storage systems.
But, he told me, “Don’t let this headline conclude that battery manufacturing in the United States will never work, or that sodium-ion itself is uncompetitive. I think both those statements are naive and lack technological nuance.”
Opinions differ on the primary advantages of sodium-ion compared to lithium-ion, but one frequently cited benefit is the potential to build a U.S.-based supply chain. Sodium is cheaper and more abundant than lithium, and China hasn’t yet secured dominance in this emerging market, though it has taken an early lead. Sodium-ion batteries also perform better at lower temperatures, have the potential to be less flammable, and — under the right market conditions — could eventually become more cost-effective than lithium-ion, which is subject to more price volatility because it’s expensive to extract and concentrated in just a few places.
Yao’s paper didn’t examine Natron’s specific technology, which relied on a cathode material known as “Prussian Blue Analogue,” as the material’s chemical structure resembles that of the pigment Prussian Blue. This formula enabled the company’s batteries to discharge large bursts of power extremely quickly while maintaining a long cycle life, making it promising for a niche — but crucial — domestic market: data center backup power.
Natron’s batteries were designed to bridge the brief gap between a power outage and a generator coming online. Today, that role is often served by lead-acid batteries, which are cheap but bulky, with a lower energy density and shorter cycle life than sodium-ion. Thus, Yao saw this market — though far smaller than that of grid-scale energy storage — as a “technologically pragmatic” opportunity for the company.
“It’s almost like a supercapacitor, not a battery,” one executive in the sodium-ion battery space who wished to remain anonymous told me of Natron’s battery. Supercapacitors are energy storage devices that — like Natron’s tech — can release large amounts of power practically immediately, but store far less total energy than batteries.
“The thing that has been disappointing about the whole story is that people talk about Natron and their products and their journey as if it’s relevant at all to the sodium-ion grid scale storage space,” the executive told me. The grid-scale market, they said, is where most companies are looking to deploy sodium-ion batteries today. “What happened to Natron, I think, is very specific to Natron.”
But what exactly did happen to the once-promising startup, which raised over $363 million in private investment from big name backers such as Khosla Ventures and Prelude Ventures? What we know for sure is that it ran out of money, canceling plans to build a $1.4 billion battery manufacturing facility in North Carolina. The company was waiting on certification from an independent safety body, which would have unleashed $25 million in booked orders, but was forced to fold before that approval came through.
Perhaps seeing the writing on the wall, Natron’s founder, Colin Wessells, stepped down as CEO last December and left the company altogether in June.
“I got bored,” Wessels told The Information of his initial decision to relinquish the CEO role. “I found as I was spending all my time on fundraising and stockholder and board management that it wasn’t all that much fun.”
It’s also worth noting, however, that according to publicly available data, the investor makeup of Natron appears to have changed significantly between the company’s $35 million funding round in 2020 and its subsequent $58 million raise in 2021, which could indicate qualms among early backers about the direction of the company going back years. That said, not all information about who invested and when is publicly known. I reached out to both Wessels and Natron’s PR team for comment but did not receive a reply.
The company submitted a WARN notice — a requirement from employers prior to mass layoffs or plant closures — to the Michigan Department of Labor and Economic Opportunity on August 28. It explained that while Natron had explored various funding avenues including follow-on investment from existing shareholders, a Series B equity round, and debt financing, none of these materialized, leaving the company unable “to cover the required additional working capital and operational expenses of the business.”
Yao told me that the startup could have simply been a victim of bad timing. “While in some ways I think the AI boom was perfect timing for Natron, I also think it might have been a couple years too early — not because it’s not needed, but because of bandwidth,” he explained. “My guess is that the biggest thing on hyperscalers’ minds are currently still just getting connected to the grid, keeping up with continuous improvements to power efficiency, and how to actually operate in an energy efficient manner.” Perhaps in this environment, hyperscalers simply viewed deploying new battery tech for a niche application as too risky, Yao hypothesized, though he doesn’t have personal knowledge of the company’s partnerships or commercial activity.
The sodium-ion executive also thought timing might have been part of the problem. “He had a good team, and the circumstances were just really tough because he was so early,” they said. Wessells founded Natron in 2012, based on his PhD research at Stanford. “Maybe they were too early, and five years from now would have been a better fit,” the executive said. “But, you know, who’s to say?”
The executive also considers it telling that Natron only had $25 million in contracts, calling this “a drop in the bucket” relative to the potential they see for sodium-ion technology in the grid-scale market. While Natron wasn’t chasing the big bucks associated with this larger market opportunity, other domestic sodium-based battery companies such as Inlyte Energy and Peak Energy are looking to deploy grid-scale systems, as are Chinese battery companies such as BYD and HiNa Battery.
But it’s certainly true that manufacturing this tech in the U.S. won’t be easy. While Chinese companies benefit from state support that can prop up the emergent sodium-ion storage industry whether it’s cost-competitive or not, sodium-ion storage companies in the U.S. will need to go head-to-head with LFP batteries on price if they want to gain significant market share. And while a few years ago experts were predicting a lithium shortage, these days, the price of lithium is about 90% off its record high, making it a struggle for sodium-ion systems to match the cost of lithium-ion.
Sodium-ion chemistry still offers certain advantages that could make it a good option in particular geographies, however. It performs better in low-temperature conditions, where lithium-ion suffers notable performance degradation. And — at least in Natron’s case — it offers superior thermal stability, meaning it’s less likely to catch fire.
Some even argue that sodium-ion can still be a cost-effective option once manufacturing ramps up due to the ubiquity of sodium, plus additional savings throughout the batteries’ useful life. Peak Energy, for example, expects its battery systems to be more expensive upfront but cheaper over their entire lifetime, having designed a passive cooling system that eliminates the need for traditional temperature control components such as pumps and fans.
Ultimately, though, Yao thinks U.S. companies should be considering sodium-ion as a “low-temperature, high-power counterpart” — not a replacement — for LFP batteries. That’s how the Chinese battery giants are approaching it, he said, whereas he thinks the U.S. market remains fixated on framing the two technologies as competitors.
“I think the safe assumption is that China will come to dominate sodium-ion battery production,” Yao told me. “They already are far ahead of us.” But that doesn’t mean it’s impossible to build out a domestic supply chain — or at least that it’s not worth trying. “We need to execute with technologically pragmatic solutions and target beachhead markets capable of tolerating cost premiums before we can play in the big leagues of EVs or [battery energy storage systems],” he said.
And that, he affirmed, is exactly what Natron was trying to do. RIP.