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The founder of Impulse Labs explains why he wants to put a battery in every appliance.
Impulse Labs debuted its much anticipated induction stove at the Consumer Electronics Show in Las Vegas this week. Coming to grips with this high-tech culinary wonder is a little bit like that meme of an expanding brain.
At first glance, the Impulse Cooktop is just a sexy-looking, $5,999 appliance: sleek black glass, burners that resemble a DJ turntable, knobs that add a satisfying analog touch to an otherwise fully digital interface.
But then you learn it also has integrated temperature sensors that keep the burners at the precise temperature you want.
And then you learn that the stove has a battery in it, which means that unlike most other induction stoves, it can plug into a standard 120-volt outlet. You don’t have to get a pricy circuit upgrade, or an even pricier electrical panel upgrade, to install it.
Plus, the battery delivers enough power to boil a liter of water in 40 seconds. And you can still cook if the power goes out. And its eligible for a 30% tax credit .
And then, your brain explodes when you learn the battery is a smart energy storage device that can charge up when power is cheap in the morning so that you save money when you use it in the evening, when power prices are highest. You can also participate in programs that will pay you to dispatch power from your stove to the grid when demand is high.
Who knew a stove could, or should, do so much?
Courtesy of Impulse Labs
I caught up with Sam D’Amico, the mastermind behind Impulse Labs, while he was at CES, to learn more about the story behind the stove. We talked about pizza, why induction cooking is the wedge to getting whole homes off gas, and his vision for putting a battery in every appliance. Our conversation has been lightly edited for clarity.
What’s your background? What were you up to before founding Impulse?
I graduated Stanford in 2012. In 2013 I got my masters. When I was there, I was on the solar car team and actually wrote battery management firmware as part of that. That gave me my first taste in electrification. You had to build a full EV and drive it across Australia. Then I immediately got sucked into consumer electronics and worked on a number of devices, including Google Glass, Oculus.
Part of the thesis for Impulse is, home appliances really haven’t seen a lot of innovation in 50 years or so. There’s been a number of advances in consumer electronics, so being able to take a lot of the talent and supply chain and experience from that and apply it to the appliance space is underleveraged.
You were working on all these computer electronics, and then somehow you got interested in stoves. I understand it had something to do with making the perfect pizza. Could you tell me that story?
I was in Japan at a conference, and we went to this pizza place and they cooked my pizza in like 45 seconds. And I’m like, that is insane. I think it’s called Savoy Pizza, you should definitely go to it. Tastiest pizza I’ve ever had. Super memorable. And then I’m like, I want to do that. But can I make it a tabletop device in my house?
And so I was getting obsessive with how to replicate that, but I realized you couldn’t do it on a 120-volt plug. I basically realized you had to put a battery in the appliance to be able to boost the power above what a 120 volt provides. All of the oven and smart appliance companies were really focused on AI and computer vision at that time, because they couldn’t innovate on the performance characteristics — they were topped out. And I realized this was an end run around that. You could actually make something that was three times better on the performance side, not have to worry about AI features that maybe no one is going to use, and really do some innovation.
That started me thinking about the bigger picture. I realized you could use that storage for the building. And then that kind of expanded into what became Impulse.
Did you figure out how to cook a pizza in 45 seconds?
So the first product is a cooktop. The idea here was we realized that the key appliance to getting gas out of the home was the stove. People don’t know what the fuel source is for all of their other appliances, including ovens. The big thing with gas stoves is that the user experience is the flame. So being able to address that, we thought, was fundamental to building decarbonization.
Utility companies know this. They know that getting people to get a gas stove is the way to get them off electric heat and on to gas heat. The wedge is actually the gas stove. So by producing an appliance that is just way more compelling, we can sever that dependency.
When we do an oven, I think we will have that pizza feature. I think the ballpark of performance of around 45 seconds is possible.
What was the process like of testing stoves and trying to figure out what the perfect stove is?
That was the fun part. We started buying hot plates and stoves and tearing them down. We basically realized that a lot of this stuff just hadn’t been attempted because the power wasn’t available. So the first thing we did was try to crank a ton of power into the stove. So we were like, let’s do 10 kilowatts, because 10 is a big number. That let us boil a liter of water in 40 seconds. We had that demo working in March or April of 2022.
But we realized immediately that this was too much performance unless you could solve the controls problem. The reason why people complain about warped pans and various other things is because the stove gets too hot. We then started tearing down all the hot plates and stoves we could find that had temperature sensors in them, and we realized that no one’s actually addressed this, and we found that there was a lot of leverage there that let us unlock the full performance of the stove. And so we’re monitoring the temperature in real time, making sure that we’re delivering the appropriate amount of power for the level you want to set, so that it holds a specific temperature.
If you need to use your stove all day, like for cooking a whole Thanksgiving dinner, is that possible with this? Or will the battery drain and then you can’t use it for a little bit?
You’re going to be okay, yes. You’ll drain the battery if you’re, let’s say, boiling a big pot of water for pasta. But then once it’s at temperature, you’re not going to be drawing more than what a 120-volt plug would draw. Maybe you’re stir-frying something. That pan, when it’s heating up, maybe it’s drawing a couple kilowatts for a minute, but then once everything’s up to temperature, you’re drawing hundreds of watts, and the battery is charging.
So basically, the average power draw [when you cook] is appropriate for even a 120-volt plug. It’s just that the peak power is more like an EV charger, or like an electric radiant heater, or something crazy. And that mismatch between peak and average is where the opportunity for putting batteries in appliances really shines.
The battery is like a quarter of a Tesla Powerwall. How valuable can that be for the grid?
There’s a couple of ways to weigh how valuable that is. In Southern California, which has really strong time-of-use energy rates, in the 4 to 9 pm slot, [using electricity during] that peak window is like 20 cents more expensive per kilowatt-hour than outside that window. So if you charge the battery outside the window and then you discharge the battery, whether it’s cooking or it’s putting power back into the house, inside that window, it’s worth hundreds of dollars a year in terms of energy bill savings.
We’ve got a full computer in there. It will basically pull those rate tables and make those choices semi-autonomously. We’re likely going to expose some level of choice to the end user, but we haven’t finalized the design.
What’s your pitch to the average consumer? How do you get people interested in having batteries in their appliances?
I think there’s a very direct pitch, which is, we are making the best possible appliances. It will make you a better cook. You will be able to do things faster and more efficiently.
Two is, you will be like, “I want to get an induction stove, I heard that’s a good thing to get.” And then your electricians will come by and tell you that you only have 10 amps available on your electric panel, and you’re going to be sad. And so we also solve that problem.
And then the third one is, now we’ve put some energy storage in your house. There’s 140 million homes in America. If we can intercept three major appliances per home, or four major appliances per home, that’s like 1.4 terawatt-hours of storage deployment potential. There’s an opportunity to deploy storage every year just by people upgrading their appliances. And so that’s part of the end game. Utilities will like that because it means they don’t have to invest in all this expensive transmission infrastructure.
Do you want to make other products besides stoves?
Yeah. We want to make the best appliances across the board. There’s a number of logical options, anything that has high peak but low average draw is the low hanging fruit. So you can imagine ovens — they draw power when they pre-heat. Water heaters are another one, where it’s like, if you’re taking a shower, it consumes a ton of power, but when you’re not, it doesn’t. Laundry is another one. I also want to emphasize that we’re making relatively high-end, premium appliances to start, but this architecture scales down fairly well to mid-range products. It’s just that as a startup, just as Tesla started with sports cars, we have to kind of start with the lower-volume, higher-margin products and then scale up from there.
How do people get one?
You can preorder it today on ImpulseLabs.com. There’s about 45% in federal discounts available. Because this thing has a battery and an inverter, it’s an energy storage product. It gets a 30% investment tax credit. A big change under the IRA was that stationary batteries, sold separately from solar, get that credit now. And then there’s also an $840 electric stove rebate that is available under the IRA. That one is income gated and expected to roll out in the fall. Our products are going to be available in Q4, so we expect the timing to be appropriate where all those rebates and credits will be available.
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Businesses were already bracing for a crash. Then came another 50% tariff on Chinese goods.
When I wrote Heatmap’s guide to driving less last year, I didn’t anticipate that a good motivation for doing so would be that every car in America was about to get a lot more expensive.
Then again, no one saw the breadth and depth of the Trump administration’s tariffs coming. “We would characterize this slate of tariffs as ‘worse than the worst case scenario,’” one group of veteran securities analysts wrote in a note to investors last week, a sentiment echoed across Wall Street and reflected in four days of stock market turmoil so far.
But if the economic downturn has renewed your interest in purchasing a bike or e-bike, you’ll want to act fast — and it may already be too late. Because Trump’s “Liberation Day” tariffs stack on top of his other tariffs and duties, the U.S. bicycle trade association PeopleForBikes calculated that beginning on April 9, the day the newest tariffs come into effect, the duty on e-bikes from China would be 79%, up from nothing at all under President Biden. The tariff on most non-electric bikes from China, meanwhile, would spike to 90%, up from 11% on January 1 of this year. Then on Tuesday, the White House announced that it would add another 50% tariff on China on top of that whole tariff stack, starting Wednesday, in retaliation for Beijing’s counter-tariffs.
Prior to the latest announcement, Jay Townley, a founding partner of the cycling industry consulting firm Human Powered Solutions, had told me that if the Trump administration actually followed through on a retaliatory 50% tariff on top of those duties, then “we’re out of business because nobody can afford to bring in a bicycle product at 100% or more in tariffs.”
It’s difficult to overstate how existential the tariffs are for the bicycle industry. Imports account for 97% of the bikes purchased in the United States, of which 87% come from China, making it “one of the most import-dependent and China-dependent industries in the U.S.,” according to a 2021 analysis by the Coalition for a Prosperous America, which advocates for trade-protectionist policies.
Many U.S. cycling brands have grumbled for years about America’s relatively generous de minimis exemption, a policy of waiving duties on items valued at less than $800. The loophole — which is what enables shoppers to buy dirt-cheap clothes from brands like Temu, Shein, and Alibaba — has also allowed for uncertified helmets and non-compliant e-bikes and e-bike batteries to flood the U.S. market. These batteries, which are often falsely marketed as meeting international safety standards, have been responsible for deadly e-bike fires in places like New York City. “A going retail for a good lithium-ion replacement battery for an e-bike is $800 to $1,000,” Townley said. “You look online, and you’ll see batteries at $350, $400, that come direct to you from China under the de minimis exemption.”
Cyclingnews reported recently that Robert Margevicius, the executive vice president of the American bicycle giant Specialized, had filed a complaint with the Trump administration over losing “billions in collectable tariffs” through the loophole. A spokesperson for Specialized defended Margevicius’ comment by calling it an “industry-wide position that is aligned with PeopleForBikes.” (Specialized did not respond to a request for clarification from Heatmap, though a spokesperson told Cyclingnews that de minimis imports permit “unsafe products and intellectual property violation.” PeopleForBikes’ general and policy counsel Matt Moore told me in an email that “we have supported reforming the way the U.S. treats low-value de minimis imports for several years.”)
Trump indeed axed China’s de minimis exemption as part of his April 2 tariffs — a small win for the U.S. bicycle brands. But any protection afforded by duties on cheap imported bikes and e-bikes will be erased by the damage from high tariffs imposed on China and other Asian countries. Fewer than 500,000 bicycles in a 10 million-unit market are even assembled in the United States, and essentially none is entirely manufactured here. “We do not know how to make a bike,” Townley told me flatly. Though a number of major U.S. brands employ engineers to design their bikes, when it comes to home-shoring manufacturing, “all of that knowledge resides in Taiwan, China, Vietnam. It isn’t here.”
In recent years, Chinese factories had become “very proficient at shipping goods from third-party countries” in order to avoid European anti-dumping duties, as well as leftover tariffs from Trump’s first term, Rick Vosper, an industry veteran and columnist at Bicycle Retailer and Industry News, told me. “Many Chinese companies built bicycle assembly plants in Vietnam specifically so the sourcing sticker would not say ‘made in China,’” he added. Of course, those bikes and component parts are now also subject to Trump’s tariffs, which are as high as 57% for Vietnam, 60% for Cambodia, and 43% for Taiwan for most bikes. (A potential added tariff on countries that import oil from Venezuela could bump them even higher.)
The tariffs could not come at a worse time for the industry. 2019 marked one of the slowest years for the U.S. specialty retail bike business in two decades, so when COVID hit — and suddenly everyone wanted a bicycle as a way of exercising and getting around — there was “no inventory to be had, but a huge influx of customers,” Vosper told me. In response, “major players put in huge increases in their orders.”
But by 2023, the COVID-induced demand had evaporated, leaving suppliers with hundreds of millions of dollars in inventory that they couldn’t move. Even by discounting wholesale prices below their own cost to make the product and offering buy-one-get-one deals, dealers couldn’t get the bikes off their hands. “All the people who wanted to buy a bike during COVID have bought a bike and are not ready to buy another one anytime soon,” Vosper said.
Going into 2025, many retailers were still dealing with the COVID-induced bicycle glut; Mike Blok, the founder of Brooklyn Carbon Bike Company in New York City, told me he could think of three or four tristate-area shops off the top of his head that have closed in recent months because they were sitting on inventory.
Blok, however, was cautiously optimistic about his own position. While he stressed that he isn’t a fan of the tariffs, he also largely sells pre-owned bikes. On the low end of the market, the tariffs will likely raise prices no more than about $15 or $20, which might not make much of a difference to consumer behavior. But for something like a higher-end carbon fiber bike, which can run $2,700 or higher and is almost entirely produced in Taiwan, the tariffs could mean an increase of hundreds of dollars for customers. “I think what that will mean for me is that more folks will be open to the pre-owned option,” Blok said, although he also anticipates his input costs for repairs and tuning will go up.
But there’s a bigger, and perhaps even more obvious, problem for bike retailers beyond their products becoming more expensive. “What I sell is not a staple good; people don’t need a bike,” Blok reminded me. “So as folks’ discretionary income diminishes because other things become more expensive, they’ll have less to spend on discretionary items.”
Townley, the industry consultant, confirmed that many major cycling brands had already seen the writing on the wall before Trump announced his tariffs and begun to pivot to re-sale. Bicycling Magazine, a hobbyist publication, is even promoting “buying used” as one of its “tips to help you save” under Trump’s tariffs. Savvy retailers might be able to pivot and rely on their service, customer loyalty, and re-sale businesses to stay afloat during the hard days ahead; Moore of PeopleForBikes also noted that “repair services may increase” as people look to fix what they already have.
And if you don’t have a bike or e-bike but were thinking about getting one as a way to lighten your car dependency, decarbonize your life, or just because they’re cool, “there are still good values to be found,” Moore went on. “Now is a great time to avoid a likely increase in prices.” Townley anticipated that depending on inventory, we’re likely 30 to 40 days away from seeing prices go up.
In the meantime, cycling organizations are scrambling to keep their members abreast of the coming changes. “PeopleForBikes is encouraging our members to contact their elected representatives about the very real impacts these tariffs will have on their companies and our industry,” Moore told me. The National Bicycle Dealers Association, a nonprofit supporting specialty bicycle retailers, has teamed up with the D.C.-based League of American Bicyclists, a ridership organization, to explore lobbying lawmakers for the first time in decades in the hopes that some might oppose the tariffs or explore carve-outs for the industry.
But Townley, whose firm Human Powered Solutions is assisting in NBDA’s effort, shared a grim conversation he had at a recent trade show in Las Vegas, where a new board member at a cycling organization had asked him “what can we do” about Trump’s tariffs.
“I said, ‘You’re out of time,” Townley recalled. “There isn’t much that can be done. All we can do is react.”
Any household savings will barely make a dent in the added costs from Trump’s many tariffs.
Donald Trump’s tariffs — the “fentanyl” levies on Canada, China, and Mexico, the “reciprocal” tariffs on nearly every country (and some uninhabited islands), and the global 10% tariff — will almost certainly cause consumer goods on average to get more expensive. The Yale Budget Lab estimates that in combination, the tariffs Trump has announced so far in his second term will cause prices to rise 2.3%, reducing purchasing power by $3,800 per year per household.
But there’s one very important consumer good that seems due to decline in price.
Trump administration officials — including the president himself — have touted cheaper oil to suggest that the economic response to the tariffs hasn’t been all bad. On Sunday, Secretary of the Treasury Scott Bessent told NBC, “Oil prices went down almost 15% in two days, which impacts working Americans much more than the stock market does.”
Trump picked up this line on Truth Social Monday morning. “Oil prices are down, interest rates are down (the slow moving Fed should cut rates!), food prices are down, there is NO INFLATION,” he wrote. He then spent the day posting quotes from Fox Business commentators echoing that idea, first Maria Bartiromo (“Rates are plummeting, oil prices are plummeting, deregulation is happening. President Trump is not going to bend”) then Charles Payne (“What we’re not talking about is, oil was $76, now it’s $65. Gasoline prices are going to plummet”).
But according to Neil Dutta, head of economic research at Renaissance Macro Research, pointing to falling oil prices as a stimulus is just another example of the “4D chess” theory, under which some market participants attribute motives to Trump’s trade policy beyond his stated goal of reducing trade deficits to as near zero (or surplus!) as possible.
Instead, oil markets are primarily “responding to the recession risk that comes from the tariff and the trade war,” Dutta told me. “That is the main story.” In short, oil markets see less global trade and less global production, and therefore falling demand for oil. The effect on household consumption, he said, was a “second order effect.”
It is true that falling oil prices will help “stabilize consumption,” Dutta told me (although they could also devastate America’s own oil industry). “It helps. It’ll provide some lift to real income growth for consumers, because they’re not spending as much on gasoline.” But “to fully offset the trade war effects, you basically need to get oil down to zero.”
That’s confirmed by some simple and extremely back of the envelope math. In 2023, households on average consumed about 700 gallons of gasoline per year, based on Energy Information Administration calculations that the average gasoline price in 2023 was $3.52, while the Bureau of Labor Statistics put average household gasoline expenditures at about $2,450.
Let’s generously assume that due to the tariffs and Trump’s regulatory and diplomatic efforts, gas prices drop from the $3.26 they were at on Monday, according to AAA, to $2.60, the average price in 2019. (GasBuddy petroleum analyst Patrick De Haanwrote Monday that the tariffs combined with OPEC+ production hikes could lead gas prices “to fall below $3 per gallon.”)
Let’s also assume that this drop in gas prices does not cause people to drive more or buy less fuel-efficient vehicles. In that case, those same 700 gallons cost the average American $1,820, which would generate annual savings of $630 on average per household. If we went to the lowest price since the Russian invasion of Ukraine, about $3 per gallon, total consumption of 700 gallons would cost a household about $2,100, saving $350 per household per year.
That being said, $1,820 is a pretty low level for annual gasoline consumption. In 2021, as the economy was recovering from the Covid recession and before gas prices popped, annual gasoline expenditures only got as low as $1,948; in 2020 — when oil prices dropped to literally negative dollars per barrel and gas prices got down to $1.85 a gallon — annual expenditures were just over $1,500.
In any case, if you remember the opening paragraphs of this story, even the most generous estimated savings would go nowhere near surmounting the overall rise in prices forecast by the Yale Budget Lab. $630 is less than $3,800! (JPMorgan has forecast a more mild increase in prices of 1% to 1.5%, but agrees that prices will likely rise and purchasing power will decline.)
But maybe look at it this way: You might be able to drive a little more than you expected to, even as your costs elsewhere are going up. Just please be careful! You don’t want to get into a bad accident and have to replace your car: New car prices are expected to rise by several thousand dollars due to Trump’s tariffs.
With cars about to get more expensive, it might be time to start tinkering.
More than a decade ago, when I was a young editor at Popular Mechanics, we got a Nissan Leaf. It was a big deal. The magazine had always kept long-term test cars to give readers a full report of how they drove over weeks and months. A true test of the first true production electric vehicle from a major car company felt like a watershed moment: The future was finally beginning. They even installed a destination charger in the basement of the Hearst Corporation’s Manhattan skyscraper.
That Leaf was a bit of a lump, aesthetically and mechanically. It looked like a potato, got about 100 miles of range, and delivered only 110 horsepower or so via its electric motors. This made the O.G. Leaf a scapegoat for Top Gear-style car enthusiasts eager to slander EVs as low-testosterone automobiles of the meek, forced upon an unwilling population of drivers. Once the rise of Tesla in the 2010s had smashed that paradigm and led lots of people to see electric vehicles as sexy and powerful, the original Leaf faded from the public imagination, a relic of the earliest days of the new EV revolution.
Yet lots of those cars are still around. I see a few prowling my workplace parking garage or roaming the streets of Los Angeles. With the faded performance of their old batteries, these long-running EVs aren’t good for much but short-distance city driving. Ignore the outdated battery pack for a second, though, and what surrounds that unit is a perfectly serviceable EV.
That’s exactly what a new brand of EV restorers see. Last week, car site The Autopiancovered DIYers who are scooping up cheap old Leafs, some costing as little as $3,000, and swapping in affordable Chinese-made 62 kilowatt-hour battery units in place of the original 24 kilowatt-hour units to instantly boost the car’s range to about 250 miles. One restorer bought a new battery on the Chinese site Alibaba for $6,000 ($4,500, plus $1,500 to ship that beast across the sea).
The possibility of the (relatively) simple battery swap is a longtime EV owner’s daydream. In the earlier days of the electrification race, many manufacturers and drivers saw simple and quick battery exchange as the solution for EV road-tripping. Instead of waiting half an hour for a battery to recharge, you’d swap your depleted unit for a fully charged one and be on your way. Even Tesla tested this approach last decade before settling for good on the Supercharger network of fast-charging stations.
There are still companies experimenting with battery swaps, but this technology lost. Other EV startups and legacy car companies that followed Nissan and Tesla into making production EVs embraced the rechargeable lithium-ion battery that is meant to be refilled at a fast-charging station and is not designed to be easily removed from the vehicle. Buy an electric vehicle and you’re buying a big battery with a long warranty but no clear plan for replacement. The companies imagine their EVs as something like a smartphone: It’s far from impossible to replace the battery and give the car a new life, but most people won’t bother and will simply move on to a new car when they can’t take the limitations of their old one anymore.
I think about this impasse a lot. My 2019 Tesla Model 3 began its life with a nominal 240 miles of range. Now that the vehicle has nearly six years and 70,000 miles on it, its maximum range is down to just 200, while its functional range at highway speed is much less than that. I don’t want to sink money into another vehicle, which means living with an EV’s range that diminishes as the years go by.
But what if, one day, I replaced its battery? Even if it costs thousands of dollars to achieve, a big range boost via a new battery would make an older EV feel new again, and at a cost that’s still far less than financing a whole new car. The thought is even more compelling in the age of Trump-imposed tariffs that will raise already-expensive new vehicles to a place that’s simply out of reach for many people (though new battery units will be heavily tariffed, too).
This is no simple weekend task. Car enthusiasts have been swapping parts and modifying gas-burning vehicles since the dawn of the automotive age, but modern EVs aren’t exactly made with the garage mechanic in mind. Because so few EVs are on the road, there is a dearth of qualified mechanics and not a huge population of people with the savvy to conduct major surgery on an electric car without electrocuting themselves. A battery-replacing owner would need to acquire not only the correct pack but also potentially adapters and other equipment necessary to make the new battery play nice with the older car. Some Nissan Leaf modifiers are finding their replacement packs aren’t exactly the same size, shape or weight, The Autopian says, meaning they need things like spacers to make the battery sit in just the right place.
A new battery isn’t a fix-all either. The motors and other electrical components wear down and will need to be replaced eventually, too. A man in Norway who drove his Tesla more than a million miles has replaced at least four battery packs and 14 motors, turning his EV into a sort of car of Theseus.
Crucially, though, EVs are much simpler, mechanically, than combustion-powered cars, what with the latter’s belts and spark plugs and thousands of moving parts. The car that surrounds a depleted battery pack might be in perfectly good shape to keep on running for thousands of miles to come if the owner were to install a new unit, one that could potentially give the EV more driving range than it had when it was new.
The battery swap is still the domain of serious top-tier DIYers, and not for the mildly interested or faint of heart. But it is a sign of things to come. A market for very affordable used Teslas is booming as owners ditch their cars at any cost to distance themselves from Elon Musk. Old Leafs, Chevy Bolts and other EVs from the 2010s can be had for cheap. The generation of early vehicles that came with an unacceptably low 100 to 150 miles of range would look a lot more enticing if you imagine today’s battery packs swapped into them. The possibility of a like-new old EV will look more and more promising, especially as millions of Americans realize they can no longer afford a new car.