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Transportation

Are EV 'Charger Hogs' Ruining the EV Experience? (cnn.com) 476

A CNN reporter spent more than two hours waiting for EV chargers — thanks to "ill-mannered charger hogs who don't respect EV etiquette." [T]o protect batteries from damage, charging speeds slow way down once batteries get beyond 80% full. In fact, it can take as long, or even longer, to go from 80% charged to completely full than to reach 80%. Meanwhile, lines of electric vehicles wait behind almost-full cars. I was waiting behind people with batteries that were 92%, 94% and even 97% full, as I could see on the charger screens. Still, they stayed there. I made my own situation worse by giving up on one location and going to another with more chargers, but there were even more EVs waiting there.

Given that a lack of public charging is turning many consumers off to EVs, according to multiple surveys, this is a major issue. Both Electrify America and EVgo said they are rapidly expanding their networks to, as EVgo's Rafalson put it, "skate ahead of the puck," trying to make sure there are enough chargers to meet future demand... "I think what you're seeing is demand for public fast charging is really skyrocketing," said Sara Rafalson, executive vice president for policy at EV charging company EVgo, "and I would say we've been really at an inflection point in the last year, year and a half, with demand...."

Electrify America, one of America's biggest charging companies, is experimenting with a solution to the problem of charger hogs who can make it slow and unpleasant to travel in an EV. At 10 of the busiest EV fast charging stations in California, Electrify America has enacted a strict limit. Once a car's batteries are 85% charged, charging will automatically stop and the driver will be told to unplug and leave or face additional 40-cent-per-minute "idle time" fees for taking the space. It's similar to something Tesla vehicles do automatically. When a Tesla car, truck or SUV plugs into a particularly heavily-used Supercharger station, the vehicle itself may automatically limit charging to just 80% "to reduce congestion," according to Tesla's on-line Supercharger Support web page.

In that case, though, the user can still override the limit using the vehicle's touchscreen. There will be no getting around Electrify America's limit.

Electrify America's president points out an EV driver could need a full charge (if they're travelling somewhere with fewer charges) — or if they're driving an EV with a relatively short range. So the article notes that some EV charging companies "have experimented with plans that charge different amounts of money at different times to give drivers incentives to fill their batteries at less busy hours...

"For the time being, let's just hope that EV drivers who don't really need to fill all the way up will learn to be more considerate."
Power

Silicon/Perovskite Solar Panels Can Reach 34% Efficiency, Researchers Show (arstechnica.com) 54

An anonymous reader shared this report from Ars Technica: [I]t might be worth spending more to get a panel that converts more of the incoming sunlight to electricity, since it allows you to get more out of the price paid to get each panel installed. But silicon panels are already pushing up against physical limits on efficiency. Which means our best chance for a major boost in panel efficiency may be to combine silicon with an additional photovoltaic material.

Right now, most of the focus is on pairing silicon with a class of materials called perovskites. Perovskite crystals can be layered on top of silicon, creating a panel with two materials that absorb different areas of the spectrum — plus, perovskites can be made from relatively cheap raw materials. Unfortunately, it has been difficult to make perovskites that are both high-efficiency and last for the decades that the silicon portion will. Lots of labs are attempting to change that, though. And two of them reported some progress this week, including a perovskite/silicon system that achieved 34 percent efficiency.

One team of researchers "sent a sample to a European test lab, which came out with an efficiency of 33.7 percent," Ars Technica notes. "The researchers have a few ideas that should boost this to 35 percent, but didn't attempt them for this paper.

"For comparison, the maximum efficiency for silicon alone is in the area of 27 percent, so that represents a very significant boost and is one of the highest perovskite/silicon combinations ever reported."
Portables (Apple)

Apple Is Finally Sending Out Payments For Its Defective Macbook Butterfly Keyboards (9to5mac.com) 26

An anonymous Slashdot reader shared this report from the blog 9to5Mac: In 2022, Apple agreed to pay a $50 million dollar settlement for certain eligible 2015-2019 MacBook owners who experienced problems with their butterfly keyboards. The claims process opened in late 2022, and the settlement got final approval last May. Starting today, eligible MacBook owners are finally receiving their payouts...

Apple finally moved away from the butterfly keyboard on the 16-inch MacBook Pro in late 2019. By mid 2020, the 13-inch MacBook Pro and MacBook Air also moved to the new Magic Keyboard. However, that wouldn't be the end of the story for Apple... In mid 2022, Apple was required to pay a $50 million settlement. The claims process started later that year, although there were some caveats. For one, you could only claim this settlement if you lived in California, Florida, Illinois, Michigan, New Jersey, New York, or Washington. This excludes 43 US states, so a good number of people with butterfly keyboards weren't even covered. Additionally, the estimated payout amount varied depending on the severity of your keyboard problems:

- Up to $395 for 2 or more top case replacements
- Up to $125 for 1 top case replacement
- Up to $50 for keycap replacements

Obviously, this wasn't the most ideal outcome for customers, but if you were eligible and filed a claim (or multiple), you're in luck!

The original goal "was to make the keyboards thinner and the laptops slimmer," remembers ZDNet. This backfired spectacularly as MacBook owners started complaining that the keys would easily stick or get jammed by dust, crumbs, or other tiny objects. Noted tech blogger John Gruber even called the new keyboards "the worst products in Apple's history."
Gruber's headline? "Appl Still Hasn't Fixd Its MacBook Kyboad Problm"
Power

Could AI Speed Up the Design of Nuclear Reactors? (byu.edu) 156

A professor at Brigham Young University "has figured out a way to shave critical years off the complicated design and licensing processes for modern nuclear reactors," according to an announcement from the university.

"AI is teaming up with nuclear power." The typical time frame and cost to license a new nuclear reactor design in the United States is roughly 20 years and $1 billion. To then build that reactor requires an additional five years and between $5 and $30 billion. By using AI in the time-consuming computational design process, [chemical engineering professor Matt] Memmott estimates a decade or more could be cut off the overall timeline, saving millions and millions of dollars in the process — which should prove critical given the nation's looming energy needs.... "Being able to reduce the time and cost to produce and license nuclear reactors will make that power cheaper and a more viable option for environmentally friendly power to meet the future demand...."

Engineers deal with elements from neutrons on the quantum scale all the way up to coolant flow and heat transfer on the macro scale. [Memmott] also said there are multiple layers of physics that are "tightly coupled" in that process: the movement of neutrons is tightly coupled to the heat transfer which is tightly coupled to materials which is tightly coupled to the corrosion which is coupled to the coolant flow. "A lot of these reactor design problems are so massive and involve so much data that it takes months of teams of people working together to resolve the issues," he said... Memmott's is finding AI can reduce that heavy time burden and lead to more power production to not only meet rising demands, but to also keep power costs down for general consumers...

Technically speaking, Memmott's research proves the concept of replacing a portion of the required thermal hydraulic and neutronics simulations with a trained machine learning model to predict temperature profiles based on geometric reactor parameters that are variable, and then optimizing those parameters. The result would create an optimal nuclear reactor design at a fraction of the computational expense required by traditional design methods. For his research, he and BYU colleagues built a dozen machine learning algorithms to examine their ability to process the simulated data needed in designing a reactor. They identified the top three algorithms, then refined the parameters until they found one that worked really well and could handle a preliminary data set as a proof of concept. It worked (and they published a paper on it) so they took the model and (for a second paper) put it to the test on a very difficult nuclear design problem: optimal nuclear shield design.

The resulting papers, recently published in academic journal Nuclear Engineering and Design, showed that their refined model can geometrically optimize the design elements much faster than the traditional method.

In two days Memmott's AI algorithm determined an optimal nuclear-reactor shield design that took a real-world molten salt reactor company spent six months. "Of course, humans still ultimately make the final design decisions and carry out all the safety assessments," Memmott says in the announcement, "but it saves a significant amount of time at the front end....

"Our demand for electricity is going to skyrocket in years to come and we need to figure out how to produce additional power quickly. The only baseload power we can make in the Gigawatt quantities needed that is completely emissions free is nuclear power."

Thanks to long-time Slashdot reader schwit1 for sharing the article.
Intel

Intel Will Give Two Years of Additional Warranty on Crash-Prone 13th and 14th Gen CPUs (theverge.com) 19

After months of back and forth, Intel has finally agreed to extend the warranty on all affected 13th- and 14th-generation desktop CPUs by an additional two years. This extension increases the warranty period for new boxed Intel CPUs from three to five years. For CPUs pre-installed in systems, Intel directs users to contact their PC's manufacturer for support, maintaining its established channels for warranty claims. The Verge adds: Intel has said that a primary cause of the instability issues for the desktop CPUs was due to an "elevated operating voltage" and that it was working on a patch for mid-August that addresses the root cause of that. But the patch apparently won't fix any damage that's already happened, meaning the best way to fix a damaged chip is to replace it.
China

China's Wind and Solar Energy Surpass Coal In Historic First (oilprice.com) 95

According to China's National Energy Administration (NEA), wind and solar energy have collectively eclipsed coal in capacity for the first time ever. By 2026, analysts forecast solar power alone will surpass coal as the country's primary energy source, with a cumulative capacity exceeding 1.38 terawatts (TW) -- 150 gigawatts (GW) more than coal. Oil Pricereports: This shift stems from a growing emphasis on cleaner energy sources and a move away from fossil fuels for the nation. Despite coal's early advantage, with around 50 GW of annual installations before 2016, China has made substantial investments to expand its renewable energy infrastructure. Since 2020, annual installations of wind and solar energy have consistently exceeded 100 GW, three to four times the capacity additions for coal. This momentum has only gathered pace since then, with last year seeing China set a record with 293 GW of wind and solar installations, bolstered by gigawatt-scale renewable hub projects from the NEA's first and second batches connected to the country's grid.

China's coal power sector is moving in the opposite direction. Last year, approximately 40 GW of coal power was added, but this figure plummeted to 8 GW in the first half of 2024, according to our estimates. Despite the expansion of renewable energy under supportive policies, the government has implemented stricter restrictions on new coal projects to meet carbon reduction goals. Efforts are now focused on phasing out smaller coal plants, upgrading existing ones to reduce emissions and enforcing more stringent standards for new projects. As a result, the annual capacity addition gap between coal and clean energy has widened dramatically, reaching a 16-fold difference in the first half of 2024.

Robotics

Fully-Automatic Robot Dentist Performs World's First Human Procedure (newatlas.com) 53

For the first time, an AI-controlled autonomous robot performed an entire dental procedure on a human patient, completing the task eight times faster than a human dentist could. New Atlas reports: The system, built by Boston company Perceptive, uses a hand-held 3D volumetric scanner, which builds a detailed 3D model of the mouth, including the teeth, gums and even nerves under the tooth surface, using optical coherence tomography, or OCT. This cuts harmful X-Ray radiation out of the process, as OCT uses nothing more than light beams to build its volumetric models, which come out at high resolution, with cavities automatically detected at an accuracy rate around 90%. At this point, the (human) dentist and patient can discuss what needs doing -- but once those decisions are made, the robotic dental surgeon takes over. It plans out the operation, then jolly well goes ahead and does it.

The machine's first specialty: preparing a tooth for a dental crown. Perceptive claims this is generally a two-hour procedure that dentists will normally split into two visits. The robo-dentist knocks it off in closer to 15 minutes. Here's a time-lapse video of the drilling portion, looking very much like a CNC machine at work. Remarkably, the company claims the machine can take care of business safely "even in the most movement-heavy conditions," and that dry run testing on moving humans has all been successful. [...] The robot's not FDA-approved yet, and Perceptive hasn't placed a timeline on rollout, so it may be some years yet before the public gets access to this kind of treatment.

Robotics

$5,000 Exoskeleton Pants Promise to Make You a Better Hiker (gizmodo.com) 66

"The linked article is pretty much a press release, but it's still interesting to see the promise of exoskeletons starting to infiltrate the mass market," writes longtime Slashdot reader Baron_Yam. "These rigs cost $5,000, weigh only a few pounds, and go for multiple hours on a charge." Gizmodo reports: With the MO/GO exoskeleton hiking pants, a traipse through the mountains is becoming more mechanical, not to mention expensive. The MO/GO (short for "Mountain Goat") is a joint effort with established outdoor apparel makers Arc'Teryx and the tech startup Skip. Remember Samsung's exoskeleton pants concepts? These are kind of like that, though Skp and Arc'Teryx's first commercial product covers up all those glaring metal bits with an already-pricey pair of designer hiking pants. The MO/GO is supposed to push you 40% harder, according to the company. What does that mean in context? Fast Company rolled around in them for a hike and found the exoskeleton took a lot of weight off the knee, cushioned footfalls, and kicked the leg forward when tackling an incline. [...]

Two braces go into each leg, while the 3-hour power pack sits at the belt line just above your posterior. The MO/GO is a pair of Arc'teryx Gamma pants with cuffs to snap Skip's carbon fiber exoskeletal thighs onto the outside of each leg, which should impact your quadriceps and hamstring muscles. The companies claim each ligament weighs 2 pounds, with the pants in total clocking in at 7 pounds, but instead of adding weight the arms absorb the impact of each step, enough to make users feel "30 pounds lighter." [...] On Skip's site, you can see an internal look at how the motors spin every time the user raises their knee. The pants are supposed to have an on-board algorithm to handle stairs or a steep incline differently. You don't control it with an app either. There are three buttons on the pants: an on/off switch, as well as "less assistance" and "more assistance" toggles.

Power

Ford's Stock Drops 20% After $1.1 Billion Loss on EV Business (msn.com) 238

Ford's stock dropped 20% this week — mostly falling off the cliff Wednesday after failing to meet Wall Street's expectations for its quarterly profits, according to MarketWatch — and notching "another billion-dollar loss on EVs." "The remaking of Ford is not without its growing pains," Ford Chief Executive Jim Farley said on a call with investors after the results. "We look forward to proving our EV strategy out. That has become more realistic and sharpened by the tough environment." Ford is "confident" it can reduce losses and sustain a profitable business in the future, he added. The car maker plans to focus on "very differentiated" EVs priced under $40,000 and $30,000, and on two segments, work and adventure, Farley said.

Larger EVs will be part of the picture, but success there will require more breakthroughs on costs, the CEO said, adding that Ford's EV journey overall has been "humbling...."

The results included an EBIT loss of $1.1 billion for Ford's EV segment, "amid ongoing industrywide pricing pressure on first-generation electric vehicles and lower wholesales," the car maker said... Ford kept its expectations that the EV business will lose between $5.0 billion and $5.5 billion for the year, "with continued pricing pressure and investments in next-generation electric vehicles," it said.

Ford's CEO went on to say that their company is totally open to partnerships for electric vehicles, according to the article. "This is absolutely a flip-the-script moment for our company."

Thanks to long-time Slashdot reader sinij for sharing the news.
Data Storage

LZ4 Compression Algorithm Gets Multi-Threaded Update (linuxiac.com) 44

Slashdot reader Seven Spirals brings news about the lossless compression algorithm LZ4: The already wonderful performance of the LZ4 compressor just got better with multi-threaded additions to it's codebase. In many cases, LZ4 can compress data faster than it can be written to disk giving this particular compressor some very special applications. The Linux kernel as well as filesystems like ZFS use LZ4 compression extensively. This makes LZ4 more comparable to the Zstd compression algorithm, which has had multi-threaded performance for a while, but cannot match the LZ4 compressor for speed, though it has some direct LZ4.
From Linuxiac.com: - On Windows 11, using an Intel 7840HS CPU, compression time has improved from 13.4 seconds to just 1.8 seconds — a 7.4 times speed increase.
- macOS users with the M1 Pro chip will see a reduction from 16.6 seconds to 2.55 seconds, a 6.5 times faster performance.
- For Linux users on an i7-9700k, the compression time has been reduced from 16.2 seconds to 3.05 seconds, achieving a 5.4 times speed boost...

The release supports lesser-known architectures such as LoongArch, RISC-V, and others, ensuring LZ4's portability across various platforms.

Power

Fracking for Heat: A New Source of Clean Energy? (msn.com) 37

Southern California Edison — one of America's largest power companies — will buy power from 7-year-old fracking startup Fervo, reports the Washington Post.

"But instead of oil and gas, Fervo is hunting heat, a more abundant resource that neither pollutes the air nor contributes to global warming." The heat will fuel a new type of power plant: an enhanced geothermal plant... [C]onventional geothermal power plants capture steam from natural underground hot springs in places such as Iceland or the Geysers in Northern California. These require a rare combination of geologic conditions — heat, underground water and porous rock. Enhanced geothermal plants use technology pioneered by oil and gas drillers to reproduce the conditions of a conventional geothermal well. This makes it possible to extract heat in many more places.

When completed in 2028, the new enhanced geothermal plant will add 400 megawatts of carbon-free electricity to the power grid (Southern California Edison has agreed to buy 320 megawatts; the rest will go to smaller power providers.) That is less than one-fifth of the generating capacity of the Diablo Canyon nuclear power plant, which by itself provides nearly a tenth of California's electricity. But as the first power purchasing agreement between an electric utility and an enhanced geothermal company, the deal represents a milestone in the effort to limit global warming. "It's a big deal," said Fervo founder and CEO Tim Latimer. "It shows the important role that geothermal is going to play on the grid as a 24/7 carbon-free energy resource...."

Fracking for heat releases no greenhouse gases. But to meaningfully contribute to emissions cuts, enhanced geothermal will need to expand quickly.

The article includes an interesting statistic about the original impact of fracking. "Between 2005 and 2021, cheaper natural gas replaced so much coal that it drove a larger reduction in U.S. CO2 emissions than replacing coal with emissions-free electricity sources such as wind and solar." (Though it still emits other greenhouse gases, and "some scientists now say that so much methane leaks during fracking that natural gas warms the planet as much as coal does.")

And while fracking for oil still has some strong critics, U.S. presidential candidate Kamala Harris "will not seek to ban fracking if she's elected," the Hill reported Friday, citing confirming comments from a campaign official.
Intel

No Fix For Intel's Crashing 13th and 14th Gen CPUs - Any Damage is Permanent 85

An anonymous reader shares a report: On Monday, it initially seemed like the beginning of the end for Intel's desktop CPU instability woes -- the company confirmed a patch is coming in mid-August that should address the "root cause" of exposure to elevated voltage. But if your 13th or 14th Gen Intel Core processor is already crashing, that patch apparently won't fix it.

Citing unnamed sources, Tom's Hardware reports that any degradation of the processor is irreversible, and an Intel spokesperson did not deny that when we asked. Intel is "confident" the patch will keep it from happening in the first place. But if your defective CPU has been damaged, your best option is to replace it instead of tweaking BIOS settings to try and alleviate the problems.

And, Intel confirms, too-high voltages aren't the only reason some of these chips are failing. Intel spokesperson Thomas Hannaford confirms it's a primary cause, but the company is still investigating. Intel community manager Lex Hoyos also revealed some instability reports can be traced back to an oxidization manufacturing issue that was fixed at an unspecified date last year.
Power

US Solar Production Soars By 25 Percent In Just One Year (arstechnica.com) 194

Yesterday, the Energy Information Agency (EIA) released electricity generation numbers for the first five months of 2024, revealing that solar power generation increased by 25% compared to the same period last year. Ars Technica's John Timmer reports: The EIA breaks down solar production according to the size of the plant. Large grid-scale facilities have their production tracked, giving the EIA hard numbers. For smaller installations, like rooftop solar on residential and commercial buildings, the agency has to estimate the amount produced, since the hardware often resides behind the metering equipment, so only shows up via lower-than-expected consumption.

In terms of utility-scale production, the first five months of 2024 saw it rise by 29 percent compared to the same period in the year prior. Small-scale solar was "only" up by 18 percent, with the combined number rising by 25.3 percent. Most other generating sources were largely flat, year over year. This includes coal, nuclear, and hydroelectric, all of which changed by 2 percent or less. Wind was up by 4 percent, while natural gas rose by 5 percent. Because natural gas is the largest single source of energy on the grid, however, its 5 percent rise represents a lot of electrons -- slightly more than the total increase in wind and solar.

Overall, energy use was up by about 4 percent compared to the same period in 2023. This could simply be a matter of changing weather conditions that required more heating or cooling. But there have been several trends that should increase electricity usage: the rise of bitcoin mining, growth of data centers, and the electrification of appliances and transport. So far, that hasn't shown up in the actual electricity usage in the US, which has stayed largely flat for decades. It could be possible that 2024 is the year where usage starts going up again.
Since the findings are based on data from before some of the most productive months of the year for solar power, solar production for the year as a whole could increase by much more than 25%. Overall, the EIA predicts solar production could rise by as much as 42% in 2024.
Robotics

DHS Has a DoS Robot To Disable Internet of Things 'Booby Traps' Inside Homes (404media.co) 140

An anonymous reader quotes a report from 404 Media's Jason Koebler: The Department of Homeland Security bought a dog-like robot that it has modified with an "antenna array" that gives law enforcement the ability to overload people's home networks in an attempt to disable any internet of things devices they have, according to the transcript of a speech given by a DHS official at a border security conference for cops obtained by 404 Media. The DHS has also built an "Internet of Things" house to train officers on how to raid homes that suspects may have "booby trapped" using smart home devices, the official said.

The robot, called "NEO," is a modified version of the "Quadruped Unmanned Ground Vehicle (Q-UGV) sold to law enforcement by a company called Ghost Robotics. Benjamine Huffman, the director of DHS's Federal Law Enforcement Training Centers (FLETC), told police at the 2024 Border Security Expo in Texas that DHS is increasingly worried about criminals setting "booby traps" with internet of things and smart home devices, and that NEO allows DHS to remotely disable the home networks of a home or building law enforcement is raiding. The Border Security Expo is open only to law enforcement and defense contractors. A transcript of Huffman's speech was obtained by the Electronic Frontier Foundation's Dave Maass using a Freedom of Information Act request and was shared with 404 Media. [...]

The robot is a modified version of Ghost Robotics' Vision 60 Q-UGV, which the company says it has sold to "25+ National Security Customers" and which is marketed to both law enforcement and the military. "Our goal is to make our Q-UGVs an indispensable tool and continuously push the limits to improve its ability to walk, run, crawl, climb, and eventually swim in complex environments," the company notes on its website. "Ultimately, our robot is made to keep our warfighters, workers, and K9s out of harm's way."
"NEO can enter a potentially dangerous environment to provide video and audio feedback to the officers before entry and allow them to communicate with those in that environment," Huffman said, according to the transcript. "NEO carries an onboard computer and antenna array that will allow officers the ability to create a 'denial-of-service' (DoS) event to disable 'Internet of Things' devices that could potentially cause harm while entry is made."
Intel

Intel Blames 13th, 14th Gen CPU Crashes on Software Bug 59

Intel has finally figured out why its 13th and 14th generation core desktop CPUs are repeatedly crashing. From a report: In a forum post on Monday, Intel said it traced the problem to faulty software code, which can trigger the CPUs to run at higher voltage levels. Intel examined a number of 13th and 14th gen desktop processors that buyers had returned. "Our analysis of returned processors confirms that the elevated operating voltage is stemming from a microcode algorithm resulting in incorrect voltage requests to the processor," it says. But in some bad news, Intel still needs a few more weeks to test its fix for the problem. "Intel is currently targeting mid-August for patch release to partners following full validation," it says. The company also recently confirmed that the issue doesn't extend to its mobile processors.
Intel

Intel Says Its Desktop Core Crashes Don't Extend To Mobile Chips 25

Intel continues to grapple with the mystery surrounding crashes in its latest 13th- and 14th-gen Core desktop processors, but it's refuting claims that the issue extends to its mobile chips. From a report: Matthew Cassells, the founder of Alderon Games and developer of Path of Titans, claimed on Reddit that the company had noted crashes on Intel's mobile processors. "Yes we have several laptops that have failed with the same crashes," he wrote. "It's just slightly more rare then [sic] the desktop CPU faults." Previously, Alderon had issued a statement blaming "thousands of crashes," as noted by its own crash reports on the Intel CPUs. It also claimed it would switch its server infrastructure to chips made by AMD.

Intel's problem with its latest Core chips has persisted since January, but simmered for months while developers began pointing fingers and PC makers started working on solutions. To date, the most bulletproof solution has been simply to swap out an affected part for a replacement, which Intel has been willing to do. Intel has also issued guidance as to what power-profile settings users and board makers should use while it works to solve the problem. An Intel representative said Friday via e-mail that Intel still remains in the dark about the root cause of the issue. However, Intel claims that its mobile processors aren't being affected.
China

China Is Installing Renewables Equivalent to Five Large Nuclear Plants Per Week (abc.net.au) 154

The pace of China's clean energy transition "is roughly the equivalent of installing five large-scale nuclear power plants worth of renewables every week," according to a report from Australia's national public broadcaster ABC (shared by long-time Slashdot reader AmiMoJo): A report by Sydney-based think tank Climate Energy Finance (CEF) said China was installing renewables so rapidly it would meet its end-of-2030 target by the end of this month — or 6.5 years early.

It's installing at least 10 gigawatts of wind and solar generation capacity every fortnight...

China accounts for about a third of the world's greenhouse gas emissions. A recent drop in emissions (the first since relaxing COVID-19 restrictions), combined with the decarbonisation of the power grid, may mean the country's emissions have peaked. "With the power sector going green, emissions are set to plateau and then progressively fall towards 2030 and beyond," CEF China energy policy analyst Xuyang Dong said... [In China] the world's largest solar and wind farms are being built on the western edge of the country and connected to the east via the world's longest high-voltage transmission lines...

Somewhat counterintuitively, China has built dozens of coal-fired power stations alongside its renewable energy zones, to maintain the pace of its clean energy transition. China was responsible for 95 per cent of the world's new coal power construction activity last year. The new plants are partly needed to meet demand for electricity, which has gone up as more energy-hungry sectors of the economy, like transport, are electrified. The coal-fired plants are also being used, like the batteries and pumped hydro, to provide a stable supply of power down the transmission lines from renewable energy zones, balancing out the intermittent solar and wind.

Despite these new coal plants, coal's share of total electricity generation in the country is falling. The China Energy Council estimated renewables generation would overtake coal by the end of this year.

CEF director Tim Buckley tells the site that China installed just 1GW of nuclear power last year — compared to 300GW of solar and wind. "They had grand plans for nuclear to be massive but they're behind on nuclear by a decade and five years ahead of schedule on solar and wind." Last year China accounted for 16% of the world's nuclear-generated power — but also more than half the world's coal-fired power generation, according to this year's analysis from the long-running International Energy Agency. The IEA estimated that in 2023, China's electricity demand rose by 6.4%, and they're predicting that by 2026 the country will see an increase "more than half of the EU's current annual electricity consumption."

And yet in China "the rapid expansion of renewable energy sources is expected to meet all additional electricity demand..." according to the IEA analysis. "Coal-fired generation in China is currently on course to experience a slow structural decline, driven by the strong expansion of renewables and growing nuclear generation, as well as moderating economic growth."

There's also some interesting stats on the "CO2 intensity" of power generation around the world. "The EU is expected to record the highest rate of progress in reducing emissions intensity, averaging an improvement of 13% per year. This is followed by China, with annual improvements forecast at 6%, and the United States at 5%."

Long-time Slashdot reader Uncle_Meataxe shares a related article from Electrek ...
Power

Wind Turbine Blade Breaks, Washes Ashore. Power Production Shut Down as Company Faces Investigation and Litigation (cnn.com) 138

"More pieces of a broken wind turbine off the coast of Massachusetts are falling into the Atlantic Ocean," reports CBS News on Thursday. "The CEO of Vineyard Wind was at Nantucket's Select Board meeting Wednesday evening, apologizing and answering questions about the initial break when he suddenly had to leave because the situation is getting worse."

CNN reports the debris has been "prompting beach closures and frustrating locals at the peak of the summer season" since the blade broke a week ago, and then folded over: Since then, foam debris and fiberglass — including some large and dangerously sharp pieces — have washed onto beaches. A "significant part" of the remaining damaged blade detached from the turbine early Thursday morning, Vineyard Wind said in a news release. The US Coast Guard confirmed to CNN it has located a 300-foot piece of the blade.

There are few answers to what caused the turbine to fail, and the incident has prompted questions and anger from city officials and Nantucket residents... The shards of turbine forced officials to close beaches earlier this week, though they have since reopened. [Nantucket select board chair Brooke Mohr] said the town would monitor for additional debris and adjust schedules accordingly. "Public safety is our most immediate concern, these fiberglass pieces are quite sharp," Mohr said, making swimming unsafe...

The federal government is conducting its own investigation and has ordered Vineyard Wind to stop all its wind turbines producing electricity until it can be determined whether any other blades were impacted, a Bureau of Safety and Environmental Enforcement spokesperson said in a statement. The federal government has also ordered the companies to preserve any equipment that could help determine the cause of the failure. The federal suspension order effectively halts further construction on Vineyard Wind, the first large-scale wind farm being installed in the US. The wind farm, a joint venture of Avangrid and Copenhagen Infrastructure Partners, has 10 turbines up and running so far with plans to install 62 total...

The project was set to double the number of turbines spinning off the East Coast, and state leaders in Massachusetts have viewed it as a big boost to the state's ability to generate electricity. Now the project is in limbo, and could remain so until the investigation is complete.

The article quotes the head of government affairs at wind blade manufacturer GE Vernova as saying a breaking wind turbine is "highly unusual and rare." But Vineyard Wind CEO Klaus Skoust Møller called it a "very serious situation" and apologized to local residents.

Meanwhile, the Boston Herald reported Friday that the Nantucket Select Board "is set to pursue litigation against the wind energy company in connection to the blade failure..." Town officials, residents and local mariners have all said they didn't learn of the incident until Monday evening, roughly 48 hours after the fact and just hours before debris started to wash ashore, prompting beaches to close Tuesday...

The "significant portion" of the 107-meter blade that detached from the turbine Thursday morning sunk to the ocean floor. Crews were slated to recover the fiberglass "in due course," town officials wrote in a Friday update... Residents are not taking kindly to Vineyard Wind's assertion that the debris — fiberglass fragments ranging in size from small pieces to larger sections, typically green or white — is not toxic. Vineyard Wind has deployed a crew of 56 contractors to assist in the cleanup of the island's beaches, and town officials said Friday that no town staff are actively engaged in removing the debris. The wind energy company reported Wednesday that crews had removed 17 cubic yards of debris, enough to fill more than six truckloads.

"The joint venture of Connecticut-based Avangrid and Denmark-based Copenhagen Infrastructure Partners is developing a plan to test water quality around the island while working on a process for financial claims."
Power

US Will Fall Behind In the AI Race Without Natural Gas, Says Williams Companies CEO 212

An anonymous reader quotes a report from CNBC: The U.S. will fall behind in the artificial intelligence race if it does not embrace natural gas to help meet surging electricity demand from data centers, the CEO of one of the nation's largest pipeline operators told CNBC. "The only way we're going to be able to keep up with the kind of power demand and the electrification that's already afoot is natural gas," Williams Companies CEO Alan Armstrong said in an interview Thursday. "If we deny ourselves that we're going to fall behind in the AI race." Williams Companies handles about one-third of the natural gas in the U.S. through a pipeline network that spans more than 30,000 miles. Williams' network includes the 10,000 mile Transcontinental Pipeline, or Transco, a crucial artery that serves virtually the entire eastern seaboard including Virginia, the world's largest data center hub, and fast growing Southeast markets such as Georgia.

The tech sector's expansion of data centers to support AI and the adoption of electric vehicles is projected to add 290 terawatt hours of electricity demand by the end of the decade in the U.S., according to a recent report by the energy consulting firm Rystad. This load growth is equivalent to the entire electricity demand of Turkey, the world's 18th largest economy. Executives at some the nation's largest utilities have warned that failure to meet this surging electricity demand will jeopardize not just the artificial intelligence revolution, but economic growth across the board in the U.S. The role natural gas in helping to meet that demand is controversial as the country is simultaneously trying to transition to a clean energy economy through the rapid expansion of renewables.
"We are going to run right up against a brick wall here and pretty quickly in terms of not having enough power available to do what we want to do on the AI side," Armstrong said. "I actually see this as a huge national security issue," the CEO said. "We're going to have to get out of our own way or we're going to accidentally keep ourselves from being the power we can be in the AI space."

"Those groups that have very much had their brand be all green have come to us and said, 'We got to work with you guys. We've run out of alternatives -- we can't meet the needs of our customers without using natural gas,'" Armstrong said. "We're completely out of capacity ourselves," Armstrong added. "So we just have to kind of beg, borrow and steal from other people's capacity to do our best to make gas available."
Power

California's Grid Survives Heat Wave Thanks to Massive Battery Storage (sacbee.com) 155

Longtime Slashdot reader Uncle_Meataxe shares a report from the Sacramento Bee: California's power grid handled a nearly three week long record-setting heat wave with few issues. The heat wave was the hottest 20-day period on record around Sacramento and set an all-time temperature record of 124 degrees in Palm Springs. Emergency alerts and calls for voluntary conservation were avoided this time around. Officials credit years of investment in renewable energy, especially battery storage that store solar power for use when the sun stops shining.

CAISO last issued calls for voluntary conservation two years ago, during a 2022 bout of extreme heat. Since then, roughly 11,600 megawatts of new renewable energy sources have come onto California's electricity grid. That includes 10,000 megawatts of battery power, enough to power 10 million homes for a few hours. California is now home to the most grid batteries in the world outside of China, [said Elliot Mainzer, president and CEO of California Independent System Operator (CAISO)].

"Batteries performed very well in this event, they were charged and ready at the right times for optimization on the grid," he added. "That made a big, big difference." [...] Apart from battery storage, Mainzer also credited that success to less extreme temperatures in Southern California as well as noticeable slightly lower electricity consumption in the peak demand hours, from 4 p.m. to 9 p.m.

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