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How electric cars and heat pumps can help Switzerland implement its energy strategy

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How electric cars and heat pumps can help Switzerland implement its energy strategy


According to a new report, heat pumps and electric cars could act as key flexibility providers for the Swiss electricity system in the future. Credit: Image generated with AI: Lea Rüfenacht / ETH Zurich

In the future, flexibly operated heat pumps and electric cars could reduce both electricity imports and electricity prices. That is according to a new study by a Swiss research consortium led by ETH Zurich.

Electric cars and could play a major role when it comes to implementing the Swiss Energy Strategy. The Federal Council is aiming for Switzerland’s energy supply to be carbon-neutral by 2050. The plan is for heat pumps to replace oil and gas-fired heating systems and for to gradually replace combustion vehicles. This will result in a significant increase in demand for electricity—from around 56 terawatt-hours (TWh) a year today to around 75 TWh a year by 2050.

A new report by the Swiss “PATHFNDR” research consortium, which is part of the “SWEET” program, has now shown that, alongside hydropower, heat pumps and electric cars could be key providers of flexibility for the Swiss power system in 2050.

Christian Schaffner, Director of the Energy Science Center at ETH Zurich and Deputy Director of the project, explains, “The two technologies serve to better coordinate rising with from renewable energy sources. This relieves the burden on the , reduces imports and brings down wholesale electricity prices—particularly in the winter months.”

Only consume if the grid is not at full capacity

This flexibility is apparent on an everyday basis. For example, at outdoor temperatures of 0°C, intelligently controlled heat pumps can switch off for up to 10 hours in buildings meeting the Minergie standard without a noticeable drop in room temperature. This helps to avoid having too many heat pumps running at the same time and overloading the grid.

Electric cars, too, are often connected to the grid for much longer than is necessary for a full charge—for example if they are plugged in to charge in the garage at the end of the working day. This allows for an optimum charging pattern that is in line with electricity supply. The study claims that the best thing would be to charge the car at work: “During the day, when the sun is shining, many vehicles are parked anyway. Charging them there would make optimum use of photovoltaic production,” explains Siobhan Powell, an energy researcher at ETH Zurich and one of the main authors of the study.

More electricity, less electricity imports

By 2050, Switzerland wants to cover 50 to 60% of its electricity demand (45 TWh per year) with new such as photovoltaics, wind energy or biomass. The researchers’ model calculations now show that this target will be easier to reach thanks to the flexible power consumption of heat pumps and electric vehicles.

If heat pumps and electric cars are coordinated and controlled flexibly on a nationwide basis, around 4% more renewable electricity could be available in Switzerland in 2050. “Most of this is solar power in spring and summer, which would be utilized more efficiently so that it does not need to be curtailed,” explains Powell.

Moreover, flexible heat pumps and electric cars could reduce net electricity imports by around 20% across the whole year, particularly due to higher net exports in spring and summer. “These amount to some 1.8 TWh of electricity, which is equivalent to the annual consumption of around 0.5 million Swiss households,” says Powell. According to the study, Switzerland’s electricity imports would also be reduced by around 0.7 TWh in the winter months. That corresponds to a 4.4% reduction in net imports in winter compared to an energy system without flexibly operated heat pumps and electric cars.

Cheaper electricity and fewer gas power stations

In addition, the study shows that wholesale electricity prices could also be lower due to a more even distribution of supply and demand with the help of flexible heat pumps and electric cars. This reduction in is greatest in the winter months of January to March, when wholesale prices could be reduced by up to 6%.

The researchers also estimate that an electricity system supported by flexible heat pumps and electric cars could be operated with around 4% lower costs than a system without these two flexibility providers.

Moreover, the use of flexibly operated heat pumps and electric cars would also mean the construction of fewer gas power stations and battery storage systems by 2050. Estimates show that the necessary investment in gas power stations and batteries would fall by around a third. “Above all, gas power stations and batteries are necessary to compensate for peaks in electricity demand. If electric vehicles and heat pumps take over this function, we’ll need fewer of them,” explains Powell.

Flexibility yes, but also convenience

According to a representative survey carried out as part of the study, about 70% of the Swiss population is willing to contribute to grid stability through flexible heating and charging, provided their convenience is not impacted and operation is automatic. About 30% of respondents even said they would accept minor inconveniences if this would bring down their electricity costs.

Lower peak loads in neighborhoods and reduced grid expansion

If a large number of households are charging their cars or running their heat pumps at the same time, there is a risk of bottlenecks in the distribution grid. Many of today’s power cables and transformers are not designed for these loads and would need to be reinforced.

The researchers analyzed about 50 grid areas in Switzerland and concluded that flexibly operated heat pumps and electric cars would reduce peak loads in neighborhoods and could therefore delay and reduce the need for expensive reinforcement work on distribution grids. The actual size of these effects also depends on whether the areas in question are urban or rural.

Electricity tariffs that reward citizens

So that electrical vehicles and heat pumps can actually act as flexibility providers by 2050, they must be equipped with the necessary control and communication technology. At present, this is not the case across the board. The authors of the study therefore recommend that further systems only be subsidized if they allow flexible and intelligent operation.

In addition, the operators of electric vehicles and heat pumps should be incentivized to change their heating and charging behavior. To this end, the study recommends measures including dynamic electricity tariffs that reward flexible charging and heating. However, significant local differences in tariffs and feed-in payments would hinder this measure’s implementation in Switzerland, states the study.

The researchers also point out that the promotional instruments in Switzerland are very heterogeneous and that there is, as yet, no national “right to charge” for tenants with electric vehicles—something they say ought to be resolved quickly.

More information:
Flexibility provision from electromobility and buildings – Synthesis Report (2025). DOI: 10.3929/ethz-c-000787060

Citation:
How electric cars and heat pumps can help Switzerland implement its energy strategy (2025, November 11)
retrieved 11 November 2025
from https://techxplore.com/news/2025-11-electric-cars-switzerland-energy-strategy.html

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Do Waterproof Sneakers Keep the Slosh In or Out? Let WIRED Explain

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Do Waterproof Sneakers Keep the Slosh In or Out? Let WIRED Explain


Running with wet feet, in wet socks, in wet shoes is the perfect recipe for blisters. It’s also a fast track to low morale. Nothing dampens spirits quicker than soaked socks. On ultra runs, I always carry spares. And when faced with wet, or even snowy, mid-winter miles, the lure of weatherproof shoes is strong. Anything that can stem the soggy tide is worth a go, right?

This isn’t as simple an answer as it sounds. In the past, a lot of runners—that includes me—felt waterproof shoes came with too many trade-offs, like thicker, heavier uppers that change the feel of your shoes or a tendency to run hot and sweaty. In general, weatherproof shoes are less comfortable.

But waterproofing technology has evolved, and it might be time for a rethink. Winterized shoes can now be as light as the regular models, breathability is better, and the comfort levels have improved. Brands are also starting to add extra puddle protection to some of the most popular shoes. So it’s time to ask the questions again: Just how much difference does a bit of Gore-Tex really make? Are there still trade-offs for that extra protection? And is it really worth paying the premium?

I spoke to the waterproofing pros, an elite ultra runner who has braved brutal conditions, and some expert running shoe testers. Here’s everything you need to know about waterproof running shoes in 2026. Need more information? Check out our guide to the Best Running Shoes, our guide to weatherproof fabrics, and our guide to the Best Rain Jackets.

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How Do Waterproof Running Shoes Work?

On a basic level, waterproof shoes add extra barriers between your nice dry socks and the wet world outside. If you’re running through puddles deep enough to breach your heel collars, you’re still going to get wet feet. But waterproof shoes can protect against rain, wet grass, snow, and smaller puddles.

Gore-Tex is probably the most common waterproofing tech in footwear, but it’s not the only solution in town. Some brands have proprietary tech, or you might come across alternative systems like eVent and Sympatex. That GTX stamp is definitely the one you’re most likely to encounter, so here’s how GTX works.

The water resistance comes from a layered system that is composed of a durable water repellent (DWR) coating to the uppers with an internal membrane, along with other details like taped seams, more sealed uppers with tighter woven mesh, gusseted tongues, and higher, gaiter-style heel collars.



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I’ve Been Waiting Months for This Gorgeous Laptop to Drop in Price. It Finally Happened

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I’ve Been Waiting Months for This Gorgeous Laptop to Drop in Price. It Finally Happened


After a long time of resisting significant price drops, the Asus Zenbook S 16 has finally dropped down to $1,000, which is $500 off its retail price.

It’s normal for laptops to dip in price toward the end of their lifespan, close to when an update comes out. But the Asus Zenbook S 16 has held on. To be fair, it’s an extremely high-end Windows laptop, one of the prettiest to come out last year. It’s sleek, portable, and has a striking design. It even gets fantastic battery life, on par with a MacBook. Speaking of MacBooks, this Zenbook is the laptop I saw tech journalists traveling with more than anything else. Given how much tech they review, that’s quite an endorsement.

But the S 16 has always been hard for me to recommend when the cheapest model available was $1,500. I was always on the lookout for a more significant price cut, but it never dropped more than a couple hundred bucks. And even though it always came with 24 GB of RAM and a terabyte of storage, the price was a hard pill to swallow. Well, the day has finally come. It’s now down to $1,000 over at Best Buy as part of the store’s Presidents’ Day sale. That’s an incredible price for this much laptop.

Photograph: Christopher Null

Asus

Zenbook S 16 (UM5606)

The previously mentioned memory and storage still apply here, along with the 2880 x 1800 OLED display with a 120-Hz refresh rate. This laptop basically has every high-end feature you could imagine, but one of my favorite aspects is the ports. Despite the thin profile, the S 16 keeps all the legacy ports you might want, including HDMI, USB-A, and even a full-size SD card slot.

There is also a smaller, 14-inch model, but its discount is not as strong as the 16-inch model. It comes in at $1,300 right now, which is still a solid price for this configuration.

I should say that Asus has an update in the works for 2026 with the latest Intel chips, but it’s only coming to the 14-inch model. I won’t lie: Based on my testing, these CPUs will make a significant difference in performance—especially on the graphics front. But I have a feeling Asus will be selling this device for an even higher price for much longer, especially with the recent development around memory shortage.

While the Zenbook S 16 is certainly the best deal at Best Buy for its Presidents’ Day sale, I would also recommend the Asus Zephyrus G14, which is also $500 off. This configuration comes with a powerful RTX 5070 Ti graphics card and is one of our favorite gaming laptops.



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‘Uncanny Valley’: ICE’s Secret Expansion Plans, Palantir Workers’ Ethical Concerns, and AI Assistants

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‘Uncanny Valley’: ICE’s Secret Expansion Plans, Palantir Workers’ Ethical Concerns, and AI Assistants


Brian Barrett: They’ve got 80 billion or so to spend 75 billion of that I think they have to spend in the next four years. So yeah, they’re going to keep expanding. And when you think of how much of an impact 3000 agents officers had in Minneapolis alone, that’s like an eighth of the, they can repeat some version of that in a lot of different spots.

Leah Feiger: And I’ve been fielding, honestly, shout out to the many local reporters around the country who’ve been contacting me in the last day or so, just to ask questions about the locations that we named that are near them or in their states or cities. And the thing to me that keeps coming up is that in addition to new buildings, they’re getting put into preexisting government buildings, preexisting leases, or that that appears to be the plan. And then we’ve also found that a bunch of these ICE offices are being located near plans for giant immigration detention warehouses, and we’re looking at offices being set up, say 20 minutes, an hour and 20 minutes away for these. Yeah. So we’re looking at different, the triangulation of this around you have to have your lawyers, your agents, have a place to get their orders and put their computers and do in some ways very mundane things that are required of an operation like this one.

Brian Barrett: Well, Leah, that’s a good point. I think when people hear ICE offices or when I do just instinctively, I think of ICE as guys with guns and masks and all that, but that’s not exactly what we’re saying here. Do you mind talking through what these offices seem to be queued up to be used for and by whom? Because ICE is not just the masked guys with bad tattoos.

Leah Feiger: Yes, absolutely. So what we reported in this story as well was some of the specific parts of ICE that actually reached out to GSA and asked them to expedite the process of getting new leases, et cetera, included in that, for example, where representatives from Ola, Ola is ICE’s office of the principal legal advisor. So that’s the lawyers, those are the ICE lawyers that are working with the courts and arguing back or deportation orders saying yes, no, et cetera, signing the documents, putting everything in front of judges. This is a really important part of this entire operation that we’re not talking about a ton. There’s a lot of focus on the DOJ. There’s a lot of focus. There was an excellent article this week in Politico talking about all of these federal judges that are really, really upset that DHS and ICE are ignoring their requests for immigrants to not be detained anymore.

The missing level of that is the lawyers that are part of this that are representing ICE to the US government here, and that’s ola. So they’ve reached out to GSA extensively as we report to get these leasing locations, specifically with the OLA legal request. I just want to get across how big this is. How massive is this ICE repeatedly outlined its expansion to cities around the us And this one piece of memorandum that we got from Ola stated that ICE will be expanding its legal operations into Birmingham, Alabama, Fort Lauderdale, Fort Myers, Jacksonville, and Tampa, Des Moines, Iowa, Boise, Idaho, Louisville, Kentucky, Baton Rouge, Louisiana, grand Rapids, Michigan, St. Louis, Missouri, rally, North Carolina, long Island, New York, Columbus, Ohio, Oklahoma City, Oklahoma, Pittsburgh, Pennsylvania, Charleston and Columbia, South Carolina, Nashville, Tennessee, Richmond, Virginia, Spokane, Washington and Cord Delaine, Idaho and Milwaukee, Wisconsin. We have other locations as well throughout the rest of the article, but those are the requests from OLA.



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