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Power

Texas Joins States Charging High Fees to Register an EV (gizmodo.com) 357

"Driving an electric vehicle in Texas is soon to become more expensive," reports Gizmodo: Governor Greg Abbott signed a law (SB 505) on May 13 instituting new fees for registering and owning EVs in the state. Under the bill, electric car owners will have to pay $400 upon registering their vehicle. Then, every subsequent year, EV drivers will have to shell out an additional $200. Both of those fees are on top of the cost of the standard annual registration renewal fees, which are $50.75 each year for most passenger cars and trucks.

At least 32 states currently have special electric vehicle registration fees, according to data from the National Conference of State Legislatures. These range from $50 in places like Colorado, Hawaii, and South Dakota to $274 (starting in 2028) in a recently passed piece of Tennessee legislation...

Like many other states that have instituted EV fees, the reasoning behind the Lone Star State's new law is that electric car drivers don't buy gas. Taxes at the fuel pump are the primary way that most states, Texas included, amass funds for road construction, maintenance, and other driving-related infrastructure.

The bill's author told a local news station that "with the growing use of EVs, the revenue from the fuel tax is decreasing, which diminishes our ability to fund road improvements for all drivers."

But Gizmodo notes that Texas's gas tax "is among the lowest in the country, at just $0.20 per gallon." (And the average car uses less than 500 gallons a year, according to the American Petroleum Institute.)
Displays

Apple Dives Into Display-Making To Cut Reliance On Samsung (nikkei.com) 11

Apple is reportedly expanding its involvement in the mass production of micro-LED displays to reduce its reliance on Samsung and gain more control over the supply chain. Nikkei Asia reports: Apple has spent heavily on the development of micro-LED displays over the past decade and once production starts, it intends to perform the critical "mass transfer" step of the manufacturing process itself, according to sources involved in the project. The mass transfer step involves moving at least tens of thousands of tiny micro-LED chips onto substrates. This process will be carried out at Apple's secretive R&D facilities in the Longtan District in the northern Taiwanese city of Taoyuan, according to multiple people with direct knowledge of the project.

Displays are one of the most expensive components in all of Apple's devices. Since the American company first introduced OLED displays on its iPhone in 2017, its reliance on Samsung Display for the screens has only grown. To reduce that dependence and gain price-bargaining power, Apple tried to bring in other suppliers, namely LG Display and China's display champion BOE Technology, but they lag the South Korean leader in terms of technology and quality stability, according to multiple sources familiar with the situation.

"Apple has spent at least $1 billion on the R&D and samples for micro-LED technologies in the past nearly 10 years," said one of the people who has been directly involved in the project for years. "It wants to secure more control over the next-gen display technologies for its future products." For the project, Apple is partnering with suppliers like ams-Osram for micro-LED components, LG Display for the substrates -- also called backplates -- and Taiwan Semiconductor Manufacturing Co. for 12-inch wafers. In addition to designing the driver integrated circuits for the micro-LED screens, Apple even designed some of the production equipment itself to better control the mass transfer process, according to two of the people with direct knowledge of the matter.
"It doesn't mean that Apple will always do the mass transfer on its own. But it shows how determined Apple is to allocate resources to have more control over [these] next-gen display technologies in its own hands," one of the sources said.

"Apple's ultimate plan is to introduce the technologies on its iPhone, which is its key revenue source and has much bigger volume, to justify the investments over the years," added one of the sources.
Hardware

Raspberry Pi CEO Eben Upton Discusses Stock Updates, Industry Prioritization (tomshardware.com) 59

An anonymous reader quotes a report from Tom's Hardware: YouTuber Jeff Geerling recently flew over to the UK to sit down with Raspberry Pi CEO Eben Upton for a chat about shortages, predictions, the Raspberry Pi Pico and other hot topics. The short of it is that stock levels are improving, close to Upton's 2022 prediction and that we are now seeing better stock levels than 2022 as Raspberry Pi slowly catches up with the backlog. Upton explained the reasoning behind prioritizing OEM customers over consumers, and addresses some of the negativity that was levied on Raspberry Pi by a minority of the passionate and vocal community.

The video starts with Geerling candidly explaining that his trip to the UK was not funded by Raspberry Pi, rather it was funded via sponsorship and Patreon supporters. With that out of the way Geerling covers a series of topics with Upton, and we've been through the video and pulled out the key points, with timestamps for you to listen to.
In regard to the company's product and shipment progress, Upton said: "So quarter one this year was our worst quarter in terms of production and shipment. [...] We did about 750 to 800,000 units in Q1 this year [due to shifting production during the Christmas period]."

With progress being made on filling backlog and availability, Upton said the company expects to move two million units in the second quarter, with the third and fourth quarters of 2023 being "unconstrained."
Displays

Augmented Reality Laptop Ditches Screen For 100-Inch Virtual Display (axios.com) 37

Spacetop, a $2,000 laptop developed by two former Magic Leap employees, replaces the traditional screen with augmented reality glasses featuring a 100-inch virtual display. Axios reports: The company is selling 1,000 of the devices as part of an early access program, with hopes of using the feedback to inform a broader launch. The Spacetop runs a custom operating system, with its backers touting the ability to run Web-based applications such as Zoom, Google Workspace and Figma. And it's not promising this first version will be for power users or gamers, saying those folks should probably wait for a later version.

The Tel Aviv-based company behind the startup, Sightful, is led by CEO Tamir Berliner and COO Tomer Kahan, both formerly of AR headset maker Magic Leap. They have raised $61 million in venture funding. The devices are being manufactured by Wistron, a major contract manufacturer of laptops, while the required AR glasses come from Nreal. Those interested can sign up now, with the devices promised for shipping starting in July.

Sightful says the glasses offer 1080p resolution per eye, which they promise is enough to offer sub-pixel viewing resolution. In a pinch the Spacetop can also connect to a traditional monitor for some features, with more available later via software updates.
Further reading:
I used the world's first augmented reality laptop (The Verge)
Meet Spacetop, a radical new laptop with no screen (PCWorld)
New Spacetop Laptop Puts Your Workspace in the Air (The New Stack)
Power

Offshore Wind Power Redesign Key To Adoption, Says Irish Firm (theregister.com) 93

Dublin-based company Gazelle Wind Power has developed a modular floating offshore wind turbine design that it claims is more affordable than traditional designs. The Register reports: While it still has to be anchored to the seafloor, Gazelle's design places the anchor cables on a trio of articulated arms that help the platform move with the motion of the ocean. To ensure the turbine tower itself stays stationary, a counterweight hangs from the center of the platform; Gazelle claims this will reduce the turbine's pitch to less than five degrees, which the company said will greatly reduce wear and tear on the tower. Despite those design changes, the result is a turbine base that Gazelle reckons is smaller, lighter and 30 percent cheaper to deploy compared to traditional semi-submersible designs, it said. Speaking to IEEE Spectrum recently, Gazelle CTO Jason Wormald claimed the counterbalanced turbine was designed from the ground up, so to speak, for the offshore wind industry.

Gazelle's design has yet to be fielded - it's working on a pilot project in Portugal with renewable energy firm WAM Horizon, whose Chairman also serves as a non-executive director at Gazelle -- but if test results scale well it could mean every 1GW of third-generation Gazelle towers deployed would use 71kt less steel, preventing around 100kt of carbon dioxide emissions, the company claims. Gazelle also touts its modular design, which it said doesn't require any specialized equipment, like cranes or custom-built launch vessels, as another way in which it reduces environmental impacts.

Hardware

Logitech Partners With iFixit for Self-Repairs (theverge.com) 28

Hanging on to your favorite wireless mouse just got a little easier thanks to a new partnership between Logitech and DIY repair specialists iFixit. The Verge: The two companies are working together to reduce unnecessary e-waste and help customers repair their own out-of-warranty Logitech hardware by supplying spare parts, batteries, and repair guides for "select products." Everything will eventually be housed in the iFixit Logitech Repair Hub, with parts available to purchase as needed or within "Fix Kits" that provide everything needed to complete the repair, such as tools and precision bit sets. Starting "this summer," Logitech's MX Master and MX Anywhere mouse models will be the first products to receive spare parts. Pricing information has not been disclosed yet, and Logitech hasn't mentioned any other devices that will receive the iFixit genuine replacement parts and repair guide treatment.
Hardware

India Launches $2 Billion Drive To Woo Laptop Makers Like Apple (bloomberg.com) 19

India is unveiling a 170 billion-rupee ($2.1 billion) financial incentive plan to draw makers of laptops, tablets and other hardware to the South Asian nation as companies look to diversify supply chains beyond China. From a report: Prime Minister Narendra Modi is capitalizing on the early success of Apple's local assembly operations -- which have helped the US company produce about 7% of its global iPhone output -- to pitch the country as a viable global manufacturing hub. New Delhi wants to bring more tech production to India after China's trade war with the US and its strict Covid policies prompted companies to weigh other options. Apple has yet to begin making iPads or MacBook laptops in India, but fresh incentives could push the Cupertino, California-based company to consider such moves. Other manufacturers who could take advantage of the new measures include Dell, HP and Asustek Computer.
Iphone

France Opens Investigation Into Apple Over 'Planned Obsolescence' For iPhones (france24.com) 47

According to Agence France-Presse, France has opened an investigation into planned obsolescence of Apple products. From the report: The probe into purported misleading commercial practices and planned obsolescence has been under way since December, the Paris prosecutor's office said. It follows a complaint filed by the Halt Planned Obsolescence (HOP) association.

HOP said it hoped the investigation would demonstrate the iPhone maker was "associating the serial numbers of spare parts to those of a smartphone, including via microchips, giving the manufacturer the possibility of restricting repairs by non-approved repairers or to remotely degrade a smartphone repaired with generic parts." The association called on Apple "to guarantee the right to repair devices under the logic of real circular economy."

Businesses

Drobo, Having Stopped Sales and Support, Reportedly Files Chapter 7 Bankruptcy (arstechnica.com) 36

An anonymous reader quotes a report from Ars Technica: StorCentric, the holding company for the Drobo and Retrospect brands, filed for Chapter 11 bankruptcy in late June 2022. Now, AppleInsider reports that, based on an email sent by StorCentric, the bankruptcy shifted from reorganization-minded Chapter 11 to liquidation-focused Chapter 7 in late April.

The writing for Drobo was on the wall, or at least on its website. Text at the top of the homepage notes that, as of January 27, 2023, Drobo products and support for them are no longer available. "Drobo support has transitioned to a self-service model," the site reads. "We thank you for being a Drobo customer and entrusting us with your data." Drobo began in 2005 as Data Robotics and launched into the tech consciousness with the original Drobo, a "storage robot." The marquee feature was being able to hot-swap drives of nearly any size without migrating data.

Power

Could Marine Energy Be the Final Frontier for Renewable Power? (cnet.com) 175

CNET explores the potential of "marine energy," starting with "an ambitious endeavor nearing completion off the coast of Oregon, where 7 miles of conduit were laid under the floor of the Pacific Ocean using pioneering horizontal drilling techniques." Soon, thick cables will be run through that conduit to connect the mainland to PacWave, an offshore experimental testbed built to develop and demonstrate new technology that converts the power of waves into onshore electricity. Once fully operational (as soon as 2025), PacWave could generate up to 20 megawatts, enough to power a few thousand homes.

"I get really excited about wave energy because the resource is so large," Levi Kilcher, a senior scientist with the National Renewable Energy Laboratory, told me. Kilcher is a lead author on the 2021 National Renewable Energy Laboratory (NREL) report that compiled available data on marine energy sources in the US, including waves, tides and ocean currents. The team found that the total energy potential is equal to more than half (57%) of the electricity generated in the U.S. in a single year...

Waves are just one potential source of marine energy that scientists and officials are investigating. Andrea Copping, a senior researcher at the Pacific Northwest National Laboratory, says there's renewed interest in another form of marine energy: ocean thermal energy conversion, or OTEC, which involves bringing up colder water from deeper parts of the ocean. This chilly flow then goes through a heat exchange process with warmer surface water, similar to the way home heat pumps exchange hot and cold air. That process drives a turbine to generate electricity... A small OTEC plant has been functioning in Hawaii for years. Copping believes new commitments from the U.S. government hold promise for the future of the technology, which has also seen significant interest in Japan and other surrounding nations.

It's possible that concern over climate change could unlock new sources of funding for OTEC... There's also the added bonus that the cold water pipes can double as a form of air conditioning in the tropical locales where OTEC works best.

Apple

Apple Begins Testing Speedy M3 Chips That Could Feature 12 CPU Cores (engadget.com) 61

Engadget writes: Apple is testing an M3 chipset with a 12-core processor and 18-core GPU, according to Bloomberg's Mark Gurman. In his latest Power On newsletter, Gurman reports a source sent him App Store developer logs that show the chip running on an unannounced MacBook Pro with macOS 14. He speculates the M3 variant Apple is testing is the base-level M3 Pro the company plans to release sometime next year...

[T]he M3 Pro reportedly features 50 percent more CPU cores than its first-generation predecessor.

From Gurman's original article: I'm sure you're wondering: How can Apple possibly fit that many cores on a chip? The answer is the 3-nanometer manufacturing process, which the company will be switching to with its M3 line. That approach allows for higher-density chips, meaning a designer can fit more cores into an already small processor.
Power

How Off-Grid Solar Power Transforms Remote Villages (apnews.com) 71

775 million people around the world didn't have electricity last year, according to the International Energy Agency. But the Associated Press points out that's changing in some of the world's most remote places — thanks to off-grid solar systems.

Here's a typical example from the world's fourth most-populous country... Before electricity came to the village a bit less than two years ago, the day ended when the sun went down. Villagers in Laindeha, on the island of Sumba in eastern Indonesia, would set aside the mats they were weaving or coffee they were sorting to sell at the market as the light faded.

A few families who could afford them would start noisy generators that rumbled into the night, emitting plumes of smoke. Some people wired lightbulbs to old car batteries, which would quickly die or burn out appliances, as they had no regulator. Children sometimes studied by makeshift oil lamps, but these occasionally burned down homes when knocked over by the wind. That's changed since grassroots social enterprise projects have brought small, individual solar panel systems to Laindeha and villages like it across the island...

Around the world, hundreds of millions of people live in communities without regular access to power, and off-grid solar systems like these are bringing limited access to electricity to places like these years before power grids reach them... Indonesia has brought electricity to millions of people in recent years, going from 85% to nearly 97% coverage between 2005 and 2020, according to World Bank data. But there are still more than half a million people in Indonesia living in places the grid doesn't reach.

While barriers still remain, experts say off-grid solar programs on the island could be replicated across the vast archipelago nation, bringing renewable energy to remote communities.

Transportation

Lithium-Ion Battery Fires on Aircraft are Happening 'Much More Frequently' (cbsnews.com) 86

As smoke began filling the cabin, an airplane passenger saw sparks and fire bursting from a bag in the seat directly behind her — which turned out to be a "smoky flashing lithium battery, which had begun smoldering in a carry-on bag," according to CBS News.

The flight crew contained the situation, and "Airport fire trucks met the plane on the runway and everyone evacuated safely." But a CBS News Investigation "has discovered similar incidents have been happening much more frequently in the skies over the United States." The FAA verifies the number of lithium-Ion battery fires jumped more 42% in the last five years. A CBS News analysis of the FAA's data found that since 2021 there's been at least one lithium battery incident on a passenger plane somewhere in the U.S., on average, once every week...

Some airlines are taking action to control the growing number of fires. They are using specialized "thermal containment" bags designed for flight crews to use if a lithium battery starts heating up to the point where it's smoking or burning. Mechanical engineers at the University of Texas at Austin say the bags can effectively contain fire and keep it from spreading, but don't extinguish it.

In a video accompanying the article, an engineering professor at the university's Fire Research Group even showed a lithium-ion battery fire that continued burning undewater. "You can't put it out. It's a fire within the cell. So, you've got fuel, oxygen, heat in the cell, all." (The article also notes a startup called Pure Lithium is working on a new kind of non-flammable battery using lithium metal cells instead of lithium ion).

Guidelines from America's Federal Aviation Administration require spare lithium-ion batteries be kept with passengers (and not checked) — and prohibits passengers from bringing onboard damaged or recalled batteries and battery-powered devices.

Thanks to long-time Slashdot reader khb for sharing the article.
Hardware

US Focuses on Invigorating 'Chiplet' Production in the US (nytimes.com) 19

More than a decade ago engineers at AMD "began toying with a radical idea," remembers the New York Times. Instead of designing one big microprocessor, they "conceived of creating one from smaller chips that would be packaged tightly together to work like one electronic brain."

But with "diminishing returns" from Moore's Law, packaging smaller chips suddenly becomes more important. [Alternate URL here.] As much as 80% of microprocessors will be using these designs by 2027, according to an estimate from the market research firm Yole Group cited by the Times: The concept, sometimes called chiplets, caught on in a big way, with AMD, Apple, Amazon, Tesla, IBM and Intel introducing such products. Chiplets rapidly gained traction because smaller chips are cheaper to make, while bundles of them can top the performance of any single slice of silicon. The strategy, based on advanced packaging technology, has since become an essential tool to enabling progress in semiconductors. And it represents one of the biggest shifts in years for an industry that drives innovations in fields like artificial intelligence, self-driving cars and military hardware. "Packaging is where the action is going to be," said Subramanian Iyer, a professor of electrical and computer engineering at the University of California, Los Angeles, who helped pioneer the chiplet concept. "It's happening because there is actually no other way."

The catch is that such packaging, like making chips themselves, is overwhelmingly dominated by companies in Asia. Although the United States accounts for around 12 percent of global semiconductor production, American companies provide just 3 percent of chip packaging, according to IPC, a trade association. That issue has now landed chiplets in the middle of U.S. industrial policymaking. The CHIPS Act, a $52 billion subsidy package that passed last summer, was seen as President Biden's move to reinvigorate domestic chip making by providing money to build more sophisticated factories called "fabs." But part of it was also aimed at stoking advanced packaging factories in the United States to capture more of that essential process... The Commerce Department is now accepting applications for manufacturing grants from the CHIPS Act, including for chip packaging factories. It is also allocating funding to a research program specifically on advanced packaging...

Some chip packaging companies are moving quickly for the funding. One is Integra Technologies in Wichita, Kan., which announced plans for a $1.8 billion expansion there but said that was contingent on receiving federal subsidies. Amkor Technology, an Arizona packaging service that has most of its operations in Asia, also said it was talking to customers and government officials about a U.S. production presence... Packaging services still need others to supply the substrates that chiplets require to connect to circuit boards and one another... But the United States has no major makers of those substrates, which are primarily produced in Asia and evolved from technologies used in manufacturing circuit boards. Many U.S. companies have also left that business, another worry that industry groups hope will spur federal funding to help board suppliers start making substrates.

In March, Mr. Biden issued a determination that advanced packaging and domestic circuit board production were essential for national security, and announced $50 million in Defense Production Act funding for American and Canadian companies in those fields. Even with such subsidies, assembling all the elements required to reduce U.S. dependence on Asian companies "is a huge challenge," said Andreas Olofsson, who ran a Defense Department research effort in the field before founding a packaging start-up called Zero ASIC. "You don't have suppliers. You don't have a work force. You don't have equipment. You have to sort of start from scratch."

HP

HP Updates Firmware, Blocks Its Printers From Using Cheaper Ink Cartridges from Rivals (telegraph.co.uk) 212

Hewlett-Packward printers recently got a firmware update that "blocks customers from using cheaper, non-HP ink cartridges," reports the Telegraph: Customers' devices were remotely updated in line with new terms which mean their printers will not work unless they are fitted with approved ink cartridges. It prevents customers from using any cartridges other than those fitted with an HP chip, which are often more expensive. If the customer tries to use a non-HP ink cartridge, the printer will refuse to print.

HP printers used to display a warning when a "third-party" ink cartridge was inserted, but now printers will simply refuse to print altogether.

The printer company said it issued the update to reduce the risk of malware attacks, saying "third-party cartridges that use non-HP chips or circuitry can pose risks to the hardware performance, print quality, and security." It also said it used regular updates to improve its services, such as introducing alerts for some customers telling them when their ink is running low. However, according to HP's website, the company also blocks the use of rival cartridges in order to "maintain the integrity of our printing systems, and protect our intellectual property".

Outraged customers have flooded social media with complaints, saying they felt "cheated" by the update. HP ink cartridges can cost more than double the price of third-party offerings... Some customers can choose to disable HP's cartridge-blocking feature in the printer's settings, HP said, but it depends on the printer model. Others will be stuck with a printer that only works if they commit to spending more on ink cartridges approved by HP.

United States

EPA Proposes Crackdown On Power Plant Carbon Emissions (reuters.com) 138

An anonymous reader quotes a report from Reuters: The Biden administration on Thursday unveiled a sweeping plan to slash greenhouse gas emissions from the U.S. power industry, one of the biggest steps so far in its effort to decarbonize the economy to fight climate change. The proposal would limit how much carbon dioxide power plants, which are the source of more than a quarter of U.S. emissions, can chuff into the atmosphere, putting the industry on a years-long course to install billions of dollars of new equipment or shut down. Environmental groups and scientists have long argued that such steps are crucial to curb global warming, but fossil fuel-producing states argue that they represent government overreach and threaten to destabilize the electric grid.

The proposal sets standards that would push power companies to install carbon capture equipment (CCS) that can siphon the CO2 from a plant's smokestack before it reaches the atmosphere, or use super-low-emissions hydrogen as a fuel. The Environmental Protection Agency projects the plan would cut carbon emissions from coal plants and new gas plants by 617 million tons between 2028 and 2042, the equivalent of reducing the annual emissions of 137 million passenger vehicles. "Today we're proposing new technology standards that will significantly reduce greenhouse gas emissions from fossil fuel power plants, protecting health and protecting our planet," EPA Administrator Michael Regan told students at the University of Maryland on their last day of school on Thursday.

Regan said that the agency has wielded the power of the federal Clean Air Act to craft the new power plant rules, along with a suite of other measures aimed at tackling vehicle emissions, as well as potent greenhouse gases methane and HFCs, that would reduce the equivalent of 15 billion tonnes of greenhouse gas emissions between 2022 and 2055. The proposal, more than 18 months in the making, reflects constraints imposed on the EPA by the Supreme Court, which ruled last year that the agency cannot impose a system-wide shift from fossil fuels to renewable energy, but can regulate plants by setting technology-based standards applied on-site.

Data Storage

Pure Storage: No More Hard Drives Will Be Sold After 2028 (blocksandfiles.com) 154

An anonymous reader shares a report: In the latest blast of the HDD vs SSD culture wars, a Pure Storage exec is predicting that no more hard disk drives will be sold after 2028 because of electricity costs and availability, as well as NAND $/TB declines. Shawn Rosemarin, VP R&D within the Customer Engineering unit at Pure, told B&F: "The ultimate trigger here is power. It's just fundamentally coming down to the cost of electricity." Not the declining cost of SSDs and Pure's DFMs dropping below the cost of disks, although that plays a part. In his view: "Hard drive technology is 67 years old. We need to herald this technology that went from five megabytes the size of this room to where we are today. And even the latest HAMR technology, putting a laser on the top of the head in order to heat up the platters, is pretty remarkable ... But we're at the end of that era."

HDD vendors sing a different tune, of course. Back in 2021, HDD vendor Seagate said the SSD most certainly would not kill disk drives. There's a VAST vs Infinidat angle to it as well, with the former also stating disk drive IO limitations would cripple the use of larger disk drives in petabyte-scale data stores, with Infidat blasting back that it "must be joking." Gartner has had a look in too, claiming that enterprise SSDs will hit 35 percent of HDD/SSD exabytes shipped by 2026 - though that would make Rosemarin's 2028 cutoff unlikely. Pure recently stated SSDs would kill HDDs in a crossover event that would happen "soon." Rosemarin, meanwhile, continued his argument: "Our CEO in many recent events has quoted that 3 percent of the world's power is in datacenters. Roughly a third of that is storage. Almost all of that is spinning disk.

So if I can eliminate the spinning disk, and I can move to flash, and I can in essence reduce the power consumption by 80 or 90 percent while moving density by orders of magnitude in an environment where NAND pricing continues to fall, it's all becoming evident that hard drives go away." Are high electricity prices set to continue? "I think the UK's power has gone up almost 5x recently. And here's the thing ... when they go up, they very seldom if ever come down ... I've been asked many times do I think the cost of electricity will drop over time. And, frankly, while I wish it would and I do think there are technologies like nuclear that could help us over time. I think it'll take us several years to get there. We're already seeing countries putting quotas on electricity, and this is a really important one -- we've already seen major hyperscalers such as one last summer who tried to enter Ireland [and] was told you can't come here, we don't have enough power for you. The next logical step from that is OK, so now if you're a company and I start to say, well, we only have so much power, so I'm gonna give you X amount of kilowatts per X amount of employees, or I'm gonna give you X amount of kilowatts for X amount of revenue that you contribute to the GDP of the country or whatever metric is acceptable."

Power

Researchers Craft a Fully Edible Battery (arstechnica.com) 40

An anonymous reader quotes a report from Ars Technica: A team of researchers at the Italian Institute of Technology (IIT) in Milan recently created a fully rechargeable battery using nontoxic edible components. This is probably the world's first battery that is safe to ingest and entirely made of food-grade materials. "Given the level of safety of these batteries, they could be used in children's toys, where there is a high risk of ingestion," said Mario Caironi, a senior researcher at IIT. However, this isn't the only solution the edible battery could provide. Apart from serving as an alternative to conventional toxic toy batteries, the edible battery from IIT could also play a key role in making health care applications safer than ever. For instance, doctors have to be cautious regarding the use of miniature electronic devices (such as drug-delivery robots, biosensors, etc.) inside the human body, as they come equipped with batteries made of toxic substances. An edible battery could solve this problem. There are also more mundane applications, like replacing batteries in pet toys.

Ivan K. Ilic, first author of the study and a postdoctoral researcher at IIT, told Ars Technica, "Two main ways a battery damages human tissue when it's inside the body is by doing water electrolysis and by the toxicity of its materials. Water electrolysis is a phenomenon where electricity with a voltage higher than 1.2 V (virtually all commercial batteries) breaks water into oxygen and hydrogen (an explosive gas), and it is very dangerous if it occurs in the stomach. Our battery is way below this voltage, around 0.65 V, so water electrolysis cannot occur. On the other hand, we used only food materials, so nothing is toxic!" Before the battery is useful, however, the researchers will need to first enhance the battery's power capacity. Currently, the edible battery can supply 48 microamperes of current for a bit over 10 minutes. So it can easily meet the power demand of a miniature medical device or a small LED. "These batteries are no competition to ordinary batteries -- they will not power electric cars -- but they are meant to power edible electronics and maybe some other niche applications, so their main advantage is non-toxicity," said Ilic.
Here's a list of what makes these edible batteries work, as mentioned by Ars:

- "Quercetin, a pigment found in almonds and capers, serves as the battery cathode, whereas riboflavin (vitamin B2) makes up the battery anode.
- The researchers used nori (edible seaweed that is used in the wrapping of sushi rolls) as the separator and a water-based solution (aqueous NaHSO4) as the electrolyte.
- Activated charcoal is employed to achieve high electrical conductivity in the battery.
The battery electrodes come covered in beeswax and connect to a gold foil (used to cover pastries) that laminates a supporting structure made of ethyl cellulose."

The research has been published in the journal Advanced Materials.
Power

Florida EVs May Be Charged 'Inductively' By One Mile of Highway (electrive.com) 149

A Norwegian company named ENRX "wants to inductively charge electric vehicles with 200 kW while driving on a section of highway in Florida," according to the "electric mobility industry" news site electrive.com.

"A one-mile section of a four-lane highway near Orlando is to be electrified." ENRX has teamed up with the Central Florida Expressway Authority and the Aspire Engineering Research Center for an initiative to build a one-mile (1.6-kilometre) section on a four-lane highway near Orlando that will inductively charge the batteries of moving electric vehicles at 200 kW.

The principle is clear: the electric vehicle batteries are fitted with a special receiver pad and charged as they drive over the coils embedded in the road. In the process, the energy is transferred from these coils to the receiver pad mounted on the vehicle floor, which according to ENRX should provide "a safe, wireless power supply" even at motorway speeds. Advantages of the 'Next Generation Electric Roadway system' mentioned include interoperability, different output power levels for different vehicle and battery types, or user-defined distance between the ground and the vehicle. In addition, the system (on the infrastructure side) is supposed to be maintenance-free after installation...

"When you can charge while driving, range anxiety and frequent charging stops will be a thing of the past," says ENRX CEO Bjørn Eldar Petersen... "Dynamic charging can reduce the need for large battery capacities, allowing cars to be equipped with lighter and more affordable battery packs."

Thanks to long-time Slashdot reader aduxorth for sharing the news.
Power

Bill Gates Visits Planned Site of 'Most Advanced Nuclear Facility in the World' (gatesnotes.com) 204

Friday Bill Gates visited Kemmerer, Wyoming (population: 2,656) — where a coal plant was shutting down after 50 years. But Gates was there "to celebrate the latest step in a project that's been more than 15 years in the making: designing and building a next-generation nuclear power plant..."

The new plant will employ "between 200 and 250 people," Gates writes in a blog post, "and those with experience in the coal plant will be able to do many of the jobs — such as operating a turbine and maintaining connections to the power grid — without much retraining." It's called the Natrium plant, and it was designed by TerraPower, a company I started in 2008. When it opens (potentially in 2030), it will be the most advanced nuclear facility in the world, and it will be much safer and produce far less waste than conventional reactors.

All of this matters because the world needs to make a big bet on nuclear. As I wrote in my book How to Avoid a Climate Disaster , we need nuclear power if we're going to meet the world's growing need for energy while also eliminating carbon emissions. None of the other clean sources are as reliable, and none of the other reliable sources are as clean...

Another thing that sets TerraPower apart is its digital design process. Using supercomputers, they've digitally tested the Natrium design countless times, simulating every imaginable disaster, and it keeps holding up. TerraPower's sophisticated work has drawn interest from around the globe, including an agreement to collaborate on nuclear power technology in Japan and investments from the South Korean conglomerate SK and the multinational steel company ArcelorMittal...

I'm excited about this project because of what it means for the future. It's the kind of effort that will help America maintain its energy independence. And it will help our country remain a leader in energy innovation worldwide. The people of Kemmerer are at the forefront of the equitable transition to a clean, safe energy future, and it's great to be partnering with them.

Gates writes that for safety the plant uses liquid sodium (instead of water) to absorb excess heat, and it even has an energy storage system "to control how much electricity it produces at any given time..."

"I'm convinced that the facility will be a win for the local economy, America's energy independence, and the fight against climate change.

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