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Monday, May 19th, 2025
Time |
Event |
3:06a |
Since 2022 Nuclear Fusion Breakthrough, US Researchers Have More Than Doubled Its Power Output TechCrunch reports:
The world's only net-positive fusion experiment has been steadily ramping up the amount of power it produces, TechCrunch has learned.
In recent attempts, the team at the U.S. Department of Energy's National Ignition Facility (NIF) increased the yield of the experiment, first to 5.2 megajoules and then again to 8.6 megajoules, according to a source with knowledge of the experiment. The new results are significant improvements over the historic experiment in 2022, which was the first controlled fusion reaction to generate more energy than the it consumed. The 2022 shot generated 3.15 megajoules, a small bump over the 2.05 megajoules that the lasers delivered to the BB-sized fuel pellet.
None of the shots to date have been effective enough to feed electrons back into the grid, let alone to offset the energy required to power the entire facility — the facility wasn't designed to do that. The first net-positive shot, for example, required 300 megajoules to power the laser system alone. But they are continued proof that controlled nuclear fusion is more than hypothetical.
Read more of this story at Slashdot. | 7:16a |
EV Sales Keep Growing In the US, Represent 20% of Global Car Sales and Half in China "Despite many obstacles — and what you may read elsewhere — electric-vehicle sales continue to grow at a healthy pace in the U.S. market," Cox Automotive reported this week. "Roughly 7.5% of total new-vehicle sales in the first quarter were electric vehicles, an increase from 7% a year earlier."
An anonymous reader shared this analysis from Autoweek:
"Despite a cloud of uncertainty around future EV interest and potential economic headwinds hanging over the automotive industry, consumer demand for electric vehicles has remained stable," according to the J.D. Power 2025 US Electric Vehicle Consideration Study released yesterday. Specifically, the study showed that 24% of vehicle shoppers in the U.S. say they are "very likely" to consider purchasing an EV and 35% say they are "somewhat likely," both of which figures remain unchanged from a year ago...
Globally the numbers are even more pro-EV. Electric car sales exceeded 17 million globally in 2024, reaching a sales share of more than 20%, according to a report issued this week by the International Energy Agency. "Just the additional 3.5 million electric cars sold in 2024 compared with the previous year is more than the total number of electric cars sold worldwide in 2020," the IEA said. China, which has mandated increases in EV sales, is the leader in getting electric vehicles on the road, with electric cars accounting for almost half of all Chinese car sales in 2024, the IEA said. "The over 11 million electric cars sold in China last year were more than global sales just 2 years earlier. As a result of continued strong growth, 1 in 10 cars on Chinese roads is now electric."
Interesting figures on U.S. EV sales from the article:
2024 EV sales rose 7.3% from 2023, according to Cox Automotive data.
"Last year American consumers purchased 1.3 million electric vehicles, which was a new record, according to data from KBB.
"Sales have never stopped growing, and the percentage of new cars sold powered purely by gasoline continues to slip.
Read more of this story at Slashdot. | 11:16a |
Danes Are Finally Going Nuclear. They Have To, Because of All Their Renewables "The Danish government plans to evaluate the prospect of beginning a nuclear power programme," reports the Telegraph, noting that this week Denmark lifted a nuclear power ban imposed 40 years ago.
Unlike its neighbours in Sweden and Germany, Denmark has never had a civil nuclear power programme. It has only ever had three small research reactors, the last of which closed in 2001. Most of the renewed interest in nuclear seen around the world stems from the expected growth in electricity demand from AI data centres, but Denmark is different. The Danes are concerned about possible blackouts similar to the one that struck Iberia recently. Like Spain and Portugal, Denmark is heavily dependent on weather-based renewable energy which is not very compatible with the way power grids operate... ["The spinning turbines found in fossil-fuelled energy systems provide inertia and act as a shock absorber to stabilise the grid during sudden changes in supply or demand," explains a diagram in the article, while solar and wind energy provide no inertia.]
The Danish government is worried about how it will continue to decarbonise its power grid if it closes all of its fossil fuel generators leaving minimal inertia. There are only three realistic routes to decarbonisation that maintain physical inertia on the grid: hydropower, geothermal energy and nuclear. Hydro and geothermal depend on geographic and geological features that not every country possesses. While renewable energy proponents argue that new types of inverters could provide synthetic inertia, trials have so far not been particularly successful and there are economic challenges that are difficult to resolve.
Denmark is realising that in the absence of large-scale hydroelectric or geothermal energy, it may have little choice other than to re-visit nuclear power if it is to maintain a stable, low carbon electricity grid.
Thanks to long-time Slashdot reader schwit1 for sharing the news.
Read more of this story at Slashdot. | 4:01p |
Germany Drops Opposition To Nuclear Power An anonymous reader shares a report: Germany has dropped its long-held opposition to nuclear power, in the first concrete sign of rapprochement with France by Berlin's new government led by conservative Chancellor Friedrich Merz.
Berlin has signalled to Paris it will no longer block French efforts to ensure nuclear power is treated on par with renewable energy in EU legislation, according to French and German officials.
The move resolves a major dispute between the two countries that has delayed decisions on EU energy policy, including during the crisis that followed Russiaâ(TM)s full-scale invasion of Ukraine. Read more of this story at Slashdot. | 11:30p |
Qualcomm To Launch Data Center Processors That Link To Nvidia Chips Qualcomm announced plans to re-enter the data center market with custom CPUs designed to integrate with Nvidia GPUs and software. As CNBC reports, the move supports Qualcomm's broader strategy to diversify beyond smartphones and into high-growth areas like data centers, PCs, and automotive chips. From the report: "I think we see a lot of growth happening in this space for decades to come, and we have some technology that can add real value added," Cristiano Amon, CEO of Qualcomm, told CNBC in an interview on Monday. "So I think we have a very disruptive CPU." Amon said the company will make an announcement about the CPU roadmap and the timing of its release "very soon," without offering specifics. The data center CPU market remains highly competitive. Big cloud computing players like Amazon and Microsoft already design and deploy their own custom CPUs. AMD and Intel also have a strong presence.
Addressing the competition, Amon said that there will be a place for Qualcomm in the data center CPU space. "As long as ... we can build a great product, we can bring innovation, and we can add value with some disruptive technology, there's going to be room for Qualcomm, especially in the data center," Amon said. "[It] is a very large addressable market that will that will see a lot of investment for decades to come." Last week, Qualcomm signed a memorandum of understanding with Saudi-based AI frim Humain to develop data centers, joining a slew of U.S. tech companies making deals in the region. Humain will operate under Saudi Arabia's Public Investment Fund.
Read more of this story at Slashdot. |
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