They offer "a self-sustaining power solution for marine regions," according to a newly published 41-page review after "pioneering use in wave energy harvesting in 2014". Ten years later, researchers have developed several structures for these "triboelectric nanogenerators" (TENGs) to "facilitate their commercial deployment." But there's a lack of "comprehensive summaries and performance evaluations". So the review "distills a decade of blue-energy research into six design pillars" for next-generation technology, writes EurekaAlert, which points the way "to self-powered ocean grids, distributed marine IoT, and even hydrogen harvested from the sea itself..." By "translating chaotic ocean motion into deterministic electron flow," the team "turns every swell, gust and glint of sunlight into dispatchable power — ushering in an era where the sea itself becomes a silent, self-replenishing power plant." Some insights: - Multilayer stacks, origami folds and magnetic-levitation frames push volumetric power density...three orders of magnitude above first-generation prototypes. - Frequency-complementary couplings of TENG, EMG and PENG create full-spectrum harvesters that deliver 117 % power-conversion efficiency in real waves. - Pendulum, gear and magnetic-multiplier mechanisms translate chaotic 0.1-2 Hz swells into stable high-frequency oscillations, multiplying average power 14-fold. - Resonance-tuned structures now span 0.01-5 Hz, locking onto shifting wave spectra across seasons and sea states. - Spherical, dodecahedral and tensegrity architectures harvest six-degree-of-freedom motion, eliminating orientational blind spots. - Single devices co-harvest wave, wind and solar inputs, powering self-charging buoys that cut battery replacement to zero... Another new wave energy project is moving forward, according to the blog Renewable Energy World: Eco Wave Power, an onshore wave energy technology company, announced that its U.S. pilot project at the Port of Los Angeles has successfully completed operational testing and achieved a new milestone: the lowering of its floaters into the water for the first time. The moment, broadcast live by Good Morning America, follows the finalization of all installation works at the project site, including full installation of all wave energy floaters; connection of hydraulic pipes and supporting infrastructure; and placement of the onshore energy conversion unit. With installation completed, Eco Wave Power has now officially entered the operational phase of its U.S. excursion... [Inna Braverman, founder and CEO of Eco Wave Power] said "This pilot station is a vital step in demonstrating how wave energy can be harnessed using existing marine infrastructure, while laying the groundwork for full-scale commercialization in the United States...." Eco Wave Power's patented onshore wave energy system attaches floaters to existing marine structures. The up-and-down motion of the waves drives hydraulic cylinders, which send pressurized fluid to a land-based energy conversion unit that generates electricity... The U.S. Department of Energy's National Renewable Energy Laboratory estimates that wave energy has the potential to generate over 1,400 terawatt-hours per year — enough to power approximately 130 million homes. Eco Wave Power's 404.7 MW global project pipeline also includes upcoming operational sites in Taiwan, India, and Portugal, alongside its grid-connected station in Israel. Long-time Slashdot reader PongoX11 also brings word of a company building a "simple" floating rig to turn wave motion into electricity, calling it "a steel can that moves water around" and wondering if "This one might work!" The news site TechEBlog points out that "Unlike old-school wave energy systems with clunky mechanical parts, Ocean-2 rocks a modular, flexible setup that rolls with the ocean's flow." At about 10 meters wide [30 feet wide. and 260 feet long!], it is made from materials designed to (hopefully) withstand the ocean's abuse, over some maintenance cycle. It's designed for deep ocean, so solving this technically is the first big challenge. Figuring out how to use/monetize all that cheap energy out in the middle of nowhere will be the next. "Ocean-2 works with the ocean, not against it, so we can generate power without messing up marine life," said Panthalassa's CEO, Dr. Elena Martinez, according to TechEBlog: Tests in Puget Sound, done with Everett Ship Repair, showed it pumping out up to 50 kilowatts in decent conditions — enough juice for a small coastal town. "We're thinking big," Martinez said in a press release. "Ocean-2 is just the start, but we're already planning bigger arrays that could crank out gigawatts..." Looking forward, Panthalassa sees Ocean-2 as part of a massive wave energy network. By 2030, they're aiming to roll out arrays that could power whole coastal cities, cutting down on fossil fuel use.

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When it comes to nuclear fusion energy, "How do we advance fusion as fast as possible?" asks the CEO of Commonwealth Fusion Systems. They've just raised $863 million from Nvidia, Google, the BIll Gates-founded Breakthrough Energy Ventures and nearly two dozen more investors, which "may prove helpful as the company develops its supply chain and searches for partners to build its power plants and buy electricity," reports TechCrunch. Commonwealth's CEO/co-founder Bob Mumgaard says "This round of capital isn't just about fusion just generally as a concept... It's about how do we go to make fusion into a commercial industrial endeavor." The Massachusetts-based company has raised nearly $3 billion to date, the most of any fusion startup. Commonwealth Fusion Systems (CFS) previously raised a $1.8 billion round in 2021... CFS is currently building a prototype reactor called Sparc in a Boston suburb. The company expects to turn that device on later next year and achieve scientific breakeven in 2027, a milestone in which the fusion reaction produces more energy than was required to ignite it. Though Sparc isn't designed to sell power to the grid, it's still vital to CFS's success. "There are parts of the modeling and the physics that we don't yet understand," Saskia Mordijck, an associate professor of physics at the College of William and Mary, told TechCrunch. "It's always an open question when you turn on a completely new device that it might go into plasma regimes we've never been into, that maybe we uncover things that we just did not expect." Assuming Sparc doesn't reveal any major problems, CFS expects to begin construction on Arc, its commercial-scale power plant, in Virginia starting in 2027 or 2028... "We know that this kind of idea should work," Mordijck said. "The question is naturally, how will it perform?" Investors appear to like what they've seen so far. The list of participants in the Series B2 round is lengthy. No single investor led the round, and a number of existing investors increased their stakes, said Ally Yost, CFS's senior vice president of corporate development... The new round will help CFS make progress on Sparc, but it will not be enough to build Arc, which will likely cost several billion dollars, Mumgaard said. "As advances in computing and AI have quickened the pace of research and development, the sector has become a hotbed of startup and investor activity," the article points out. And CEO Mumgaard told TechCrunch that their Sparc prototype will prove the soundness of the science — but it's also important to learn "the capabilities that you need to be able to deliver it. It's also to have the receipts, know what these things cost!"

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"Delta Air Lines Flight 1334 was flying from Atlanta to Fort Lauderdale last month when smoke and flames started pouring out of a backpack," reports CNN. "The pilots declared an emergency and diverted to Fort Meyers where the 191 people onboard safely evacuated." The culprit was a passenger's personal lithium-ion battery pack, which had been tucked away in the carry-on bag. At the FAA's William J. Hughes Technical Center for Advanced Aerospace in Atlantic City, New Jersey, fire safety engineers research and demonstrate just how bad it can be. "Lithium batteries can go into what's called thermal runaway," Fire Safety Branch Manager Robert Ochs, explained. "All of a sudden, it'll start to short circuit ... It will get warmer and warmer and warmer until the structure of the battery itself fails. At that point, it can eject molten electrolyte and flames and smoke and toxic gas...." These thermal runaways are difficult to fight. The FAA recommends flight attendants first use a halon fire extinguisher, which is standard equipment on planes, but that alone may not be enough. In the test performed for CNN, the flames sprung back up in just moments... "Adding the water, as much water from the galley cart, non-alcoholic liquids, everything that they can get to just start pouring on that device." The problems are not new, but more batteries are being carried onto planes than ever before. Safety organization UL Standards and Engagement says today an average passenger flies with four devices powered by lithium-ion batteries. "The incidents of fire are rare, but they are increasing. We're seeing as many as two per week, either on planes or within airports," Jeff Marootian, the president and CEO of the organization, told CNN... [T]he latest federal data shows external battery packs are the top cause of incidents, and as a result the FAA has banned them from checked baggage where they are harder to extinguish. But despite all of the warnings, UL Standards and Engagement says two in five passengers still say they check them.

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Google, TVA, and Kairos Power are teaming up to power data centers with advanced nuclear energy through a collaboration in Oak Ridge, Tennessee. The project aims to deliver 50 MW of nuclear energy by 2030. From a blog post: Today we announced the first deployment of Kairos Power's advanced nuclear reactor -- the Hermes 2 Plant in Oak Ridge, Tennessee -- through a new power purchase agreement (PPA) between Kairos Power and Tennessee Valley Authority (TVA). Marking the first purchase of electricity from an advanced GEN IV reactor by a U.S. utility, this agreement will enable 50 megawatts (MW) of nuclear energy on TVA's grid that powers our data centers in Montgomery County, Tennessee and Jackson County, Alabama. Last October, we began a long-term collaboration with Kairos Power to unlock up to 500 MW of nuclear power for the U.S. electricity system through multiple deployments of their small modular reactor. With this next step, we are creating a three-party solution where energy customers, utilities, and technology developers work together to advance new technologies that can help meet the world's growing energy needs with reliable, affordable capacity. Here's how it works: TVA will purchase electricity from Kairos Power's Hermes 2 plant, scheduled to begin operations in 2030. In this initial phase of the collaboration, we will procure clean energy attributes from the plant through TVA to help power our data centers in the region with locally sourced clean energy, every hour of every day.

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Electricity prices have increased at more than double the inflation rate over the past year, according to NPR reporting. Florida Power & Light customers face monthly bills exceeding $400 during summer months, prompting the utility to seek a 13% rate increase over four years that drew tens of thousands of petition signatures in opposition. The Energy Department projects data centers will consume more electricity than residential customers for the first time in 2026. Natural gas costs for power generation rose 40% in the first half of 2025 compared to 2024, and the department expects another 17% increase next year. Natural gas generates more than 40% of U.S. electricity. One in six households currently struggles to pay electric bills. The federal government provides $4 billion annually in energy assistance for low-income families. Further reading: Big Tech's AI Data Centers Are Driving Up Electricity Bills for Everyone.

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Puerto Rico expects 93 different power outages this summer, reports the Washington Post. But they also note that "roughly 1 in 10 Puerto Rican homes now have a battery and solar array for backup power" which have also "become a crucial source of backup power for the entire island grid." A network of 69,000 home batteries can generate as much electricity as a small natural gas turbine during an emergency, temporarily covering about 2 percent of the island's energy needs when things go wrong... "It has very, very certainly prevented more widespread outages," said Daniel Haughton, [transmission and distribution planning director for Puerto Rico's grid operator]. "In the instances that we had to [cut power], it was for a much shorter duration: A four-hour outage became a one- or two-hour outage." Puerto Rico's experience offers a glimpse into the future for the rest of the United States, where batteries are starting to play a big role in keeping the lights on. Authorities in Texas, California and New England have credited home batteries with preventing blackouts during summer energy crunches. As power grids across the country groan under the increasing strain of new data centers, factories and EVs, batteries offer a way for homeowners to protect themselves — and all of their neighbors — from the threat of outages. Batteries have been booming in the U.S. since 2022, when Congress created generous installation tax credits for homeowners and power companies. Home batteries generally come as an option alongside rooftop solar panels, according to Christopher Rauscher, head of grid services and electrification for Sunrun, a company that installs both. More than 70 percent of the people who hire Sunrun to put up solar panels also get a battery. With the tax credits — and the money saved on rising electricity costs — solar panels and batteries make financial sense for most American homes, according to a study Stanford University scientists published Aug. 1. About 60 percent of homes would save money in the long run with solar panels and batteries... Those batteries can have broader benefits, too. Utilities pay customers hundreds of dollars a year to sign their batteries up to form "virtual power plants," which send electricity to the grid whenever power plants can't keep up with demand. California's network of home batteries can now add 535 megawatts of electricity in an emergency — about half as much energy as a nuclear power plant... [H]omeowners can make thousands of dollars a year lowering their energy bills, selling solar power back to the grid or enrolling their batteries in a virtual power plant, depending on their power company's policies and state regulations. "Over time, you would get the full payback for your system and basically get your backup for free," said Ram Rajagopal, an associate professor of civil and environmental engineering who co-authored the Stanford study.

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Electricity rates for individuals and small businesses could rise sharply as Amazon, Google, Microsoft and other technology companies build data centers and expand into the energy business. Residential electricity bills increased at least $15 monthly for Ohio households starting in June due to data center demands, according to utility data and an independent grid monitor. A Carnegie Mellon University and North Carolina State University analysis projects average U.S. electricity bills will rise 8% by 2030 from data center growth, with Virginia facing potential 25% increases. Virginia regulators estimate residents could pay an additional $276 annually by 2030. National residential electricity rates have already risen more than 30% since 2020. Tech companies' AI push requires data centers that consumed over 4% of U.S. electricity in 2023, with government analysts projecting consumption reaching 12% within three years. American Electric Power warned Ohio regulators that without new rate structures requiring data centers to pay more upfront costs, residents and small businesses would bear much of the expense for grid upgrades.

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AmiMoJo shares a report from the BBC: A French nuclear plant temporarily shut down on Monday due to a "massive and unpredictable presence of jellyfish" in its filters, its operator said. The swarm clogged up the cooling system and caused four units at the Gravelines nuclear power plant to automatically switch off, energy group EDF said. The plant is cooled from a canal connected to the North Sea -- where several species of jellyfish are native and can be seen around the coast when the waters are warm. According to nuclear engineer Ronan Tanguy, the marine animals managed to slip through systems designed to keep them out because of their "gelatinous" bodies. "They were able to evade the first set of filters then get caught in the secondary drum system," he told the BBC. Mr Tanguy, who works at the WNA, said this will have created a blockage which reduced the amount of water being drawn in, prompting the units to shut down automatically as a precaution. He stressed that the incident was a "non-nuclear event" and more a "nuisance" for the on-site team to clean up. For local people, there would be no impact on their safety or how much energy they could access: "They wouldn't perceive it as any different to any other shut-down of the system for maintenance."

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Companies are canceling clean hydrogen projects across the United States after Congress shortened the qualification window for a Biden-era tax credit by five years, requiring projects to be under construction by the end of 2027. Energy consulting firm Wood Mackenzie estimates three-quarters of proposals will not meet this deadline. Woodside Energy and Fortescue have scrapped projects in Oklahoma and Arizona respectively, citing cost increases and policy uncertainty. According to McKinsey, fewer than 15% of low-emission hydrogen projects announced in the United States since 2015 have reached final investment decision stage.

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"Amid rising electric bills, states are under pressure to insulate regular household and business ratepayers from the costs of feeding Big Tech's energy-hungry data centers..." reports the Associated Press. "Some critics question whether states have the spine to take a hard line against tech behemoths like Microsoft, Google, Amazon and Meta." [T]he Data Center Coalition, which represents Big Tech firms and data center developers, has said its members are committed to paying their fair share. But growing evidence suggests that the electricity bills of some Americans are rising to subsidize the massive energy needs of Big Tech as the U.S. competes in a race against China for artificial intelligence superiority. Data and analytics firm Wood Mackenzie published a report in recent weeks that suggested 20 proposed or effective specialized rates for data centers in 16 states it studied aren't nearly enough to cover the cost of a new natural gas power plant. In other words, unless utilities negotiate higher specialized rates, other ratepayer classes — residential, commercial and industrial — are likely paying for data center power needs. Meanwhile, Monitoring Analytics, the independent market watchdog for the mid-Atlantic grid, produced research in June showing that 70% — or $9.3 billion — of last year's increased electricity cost was the result of data center demand. Last year, five governors led by Pennsylvania's Josh Shapiro began pushing back against power prices set by the mid-Atlantic grid operator, PJM Interconnection, after that amount spiked nearly sevenfold. They warned of customers "paying billions more than is necessary." PJM has yet to propose ways to guarantee that data centers pay their freight, but Monitoring Analytics is floating the idea that data centers should be required to procure their own power. In a filing last month, it said that would avoid a "massive wealth transfer" from average people to tech companies. At least a dozen states are eyeing ways to make data centers pay higher local transmission costs. In Oregon, a data center hot spot, lawmakers passed legislation in June ordering state utility regulators to develop new — presumably higher — power rates for data centers. The Oregon Citizens' Utility Board [a consumer advocacy group] says there is clear evidence that costs to serve data centers are being spread across all customers — at a time when some electric bills there are up 50% over the past four years and utilities are disconnecting more people than ever. "Some data centers could require more electricity than cities the size of Pittsburgh, Cleveland or New Orleans," the article points out...

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One of America's largest solar + battery storage projects "is now fully online in Mojave, California," reports Electrek: Arevon Energy's Eland Solar-plus-Storage Project combines 758 megawatts (MWdc) of solar with 300 MW/1,200 megawatt hours of battery storage. Eland 1 reached commercial operation in December 2024, and Eland 2 recently commenced full operation. The two combined comprise 1.36 million solar panels and 172 lithium iron phosphate batteries (LFP). Combined, the Eland 1 & 2 projects will be able to power more than 266,000 homes annually, and overall, can provide 7% of the total electricity requirements for the city of Los Angeles. "Arevon's Eland Solar-plus-Storage Project alone will ... push the city's clean energy share above 60%, a major milestone in LA's transition to being powered by 100% clean energy by 2035," said Los Angeles Mayor Karen Bass. Eland 1 & 2 created around 1,000 jobs to construct the project, and it's expected to disburse more than $36 million in local government payments throughout its lifetime. The article points out that Arevon Energy "has more than 4,500 MW of solar and battery storage projects operating across 17 states — and more than 6 GW of new projects in its pipeline."

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Fermi America is planning to build a colossal AI datacenter complex in Amarillo, Texas, powered by up to six gigawatts of nuclear energy. According to The Register, the company has selected Hyundai to support the deployment of the "HyperGrid," describing it as the "world's largest advanced energy campus." From the report: The project is backed by Rick Perry, who served as Texas governor and US Energy Secretary, and investor Toby Neugebauer, and aims to establish Texas as the US's largest energy and intelligence campus. Construction of the first of four Westinghouse AP1000 reactors is set to begin next year in Amarillo with the plant funneling behind-the-meter power to GPU bit barns by 2032, at least that's according to a memorandum of understanding (MoU). In other words, there is no guarantee the 23 million square meter project (1.1 MilliWales) will actually be built in its entirety, but if it is, Hyundai will oversee it. "This agreement is significant in that it allows us to participate from the early stages of this project and contribute to the creation of the world's largest integrated energy and artificial intelligence campus, which leverages a diverse range of energy infrastructure," Hyundai said in a canned statement. At the very least, Hyundai knows what it's doing when it comes to nuclear developments. The industrial giant has led the deployment of some 22 reactors. Ambitious as the project may be, it won't be cheap. A single AP1000 reactor was estimated to cost $6.8 billion two years ago. That's a lot of money, but nothing compared to what the hyperscalers and neo-clouds are pumping into datacenters these days. Meta, for reference, expects to spend $66-72 billion on bit barns this year. [...] How exactly Fermi America or its founders Perry and Neugebauer expect to pay for one AP1000 reactor, let alone four, isn't clear. [...]

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The Washington Post reports: In early July, a wasp nest with a radiation level 10 times what is allowed by federal regulations was found inside the grounds of a sprawling Cold War-era nuclear site in South Carolina that today partly serves as a storage area for radioactive liquid waste. Federal officials said Friday that at least three more contaminated wasp nests were found within the 310-square-mile Savannah River Site, which encompasses an area more than four times the size of the District of Columbia... [F]ederal authorities said that the discoveries were not cause for alarm and experts noted that the discovery of radioactivity in wildlife near nuclear facilities did not necessarily indicate the likelihood of a major leak... In a statement sent to reporters, Edwin Deshong, manager of the Savannah River Site's Office of Environmental Management, said the wasp nests had "very low levels of radioactive contamination" and did not pose health risks to the site's workers, nearby residents or the environment... The Savannah River Site's 43 active underground waste tanks have more than 34 million gallons of radioactive liquid waste. The oldest tanks have previously "developed small hairline cracks" that led to small-volume leaks, the Savannah River Site says on its website. A July report after the first nest was found said there was "no impact" from the contaminated nest, the Post reports, with the nest's high radioactivity level due to "on-site legacy radioactive contamination" rather than "a loss of contamination control." More from the Associated Press: The tank farm is well inside the boundaries of the site and wasps generally fly just a few hundred yards from their nests, so there is no danger they are outside the facility, according to a statement from Savannah River Mission Completion which now oversees the site. If there had been wasps found, they would have significantly lower levels of radiation than their nests, according to the statement which was given to the Aiken Standard. Thanks to long-time Slashdot reader sandbagger for sharing the news.

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A Rutgers-led study using advanced computational modeling reveals that expanding solar power by just 15% could reduce U.S. carbon emissions by over 8.5 million metric tons annually, with the greatest benefits concentrated in specific regions like California, Texas, and the Southwest. The study has been published in Science Advances. From the report: The study quantified both immediate and delayed emissions reductions resulting from added solar generation. For example, the researchers found that in California, a 15% increase in solar power at noon was associated with a reduction of 147.18 metric tons of CO2 in the region in the first hour and 16.08 metric tons eight hours later. The researchers said their methods provide a more nuanced understanding of system-level impacts from solar expansion than previous studies, pinpointing where the benefits of increased solar energy adoption could best be realized. In some areas, such as California, Florida, the mid-Atlantic, the Midwest, Texas and the Southwest, small increases in solar were estimated to deliver large CO2 reductions, while in others, such as New England, the central U.S., and Tennessee, impacts were found to be minimal -- even at much larger increases in solar generation. In addition, the researchers said their study demonstrates the significant spillover effects solar adoption has on neighboring regions, highlighting the value of coordinated clean energy efforts. For example, a 15% increase in solar capacity in California was associated with a reduction of 913 and 1,942 metric tons of CO2 emissions per day in the northwest and southwest regions, respectively. "It was rewarding to see how advanced computational modeling can uncover not just the immediate, but also the delayed and far-reaching spillover effects of solar energy adoption," said the lead author Arpita Biswas, an assistant professor with the Department of Computer Science at the Rutgers School of Arts and Sciences. "From a computer science perspective, this study demonstrates the power of harnessing large-scale, high-resolution energy data to generate actionable insights. For policymakers and investors, it offers a roadmap for targeting solar investments where emissions reductions are most impactful and where solar energy infrastructure can yield the highest returns."

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Longtime Slashdot reader AmiMoJo shares a report from Electrek: Peak Energy shipped out its first sodium-ion battery energy storage system, and the New York-based company says it's achieved a first in three ways: the US's first grid-scale sodium-ion battery storage system; the largest sodium-ion phosphate pyrophosphate (NFPP) battery system in the world; and the first megawatt-hour scale battery to run entirely on passive cooling -- no fans, pumps, or vents. That's significant because removing moving parts and ditching active cooling systems eliminates fire risk. According to the Electric Power Research Institute, 89% of battery fires in the US trace back to thermal management issues. Peak's design doesn't have those issues because it doesn't have those systems. Instead, the 3.5 MWh system uses a patent-pending passive cooling architecture that's simpler, more reliable, and cheaper to run and maintain. The company says its technology slashes auxiliary power needs by up to 90%, saves about $1 million annually per gigawatt hour of storage, and cuts battery degradation by 33% over a 20-year lifespan. [...] Peak is working with nine utility and independent power producer (IPP) customers on a shared pilot this summer. That deployment unlocks nearly 1 GWh of future commercial contracts now under negotiation. The company plans to ship hundreds of megawatt hours of its new system over the next two years, and it's building its first US cell factory, which is set to start production in 2026.

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Utilities across the U.S. are demanding tech companies pay larger shares of electricity infrastructure costs as AI drives unprecedented data center construction, creating tensions over who bears the financial burden of grid upgrades. Virginia utility Dominion Energy received requests from data center developers requiring 40 gigawatts of electricity by the end of 2024, enough to power at least 10 million homes, and proposed measures requiring longer-term contracts and guaranteed payments. Ohio became one of the first states to mandate companies pay more connection costs after receiving power requests exceeding 50 times existing data center usage. Tech giants Microsoft, Google, and Amazon plan to spend $80 billion, $85 billion, and $100 billion respectively this year on AI infrastructure, while utilities worry that grid upgrade costs will increase rates for residential customers. Further reading: The AI explosion means millions are paying more for electricity

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"Google has signed its first partnership with a long-duration energy storage company," reports Data Center Dynamics. "The tech giant signed a long-term partnership with Energy Dome to support multiple commercial deployments worldwide to help scale the company's CO2 battery technology." Google explains in a blog post that the company's technology "can store excess clean energy and then dispatch it back to the grid for 8-24 hours, bridging the gap between when renewable energy is generated and when it is needed." Reuters explains the technology: Energy Dome's CO2-based system stores energy by compressing and liquefying carbon dioxide, which is later expanded to generate electricity. The technology avoids the use of scarce raw materials such as lithium and copper, making it potentially attractive to European policymakers seeking to reduce reliance on critical minerals and bolster energy security. "Unlike other gases, CO2 can be compressed at ambient temperatures, eliminating the need for expensive cryogenic features," notes CleanTechnica, calling this "a unique new threat to fossil fuel power plants." Google's move "means that more wind and solar energy than ever before can be put to use in local grids." Pumped storage hydropower still accounts for more than 90% of utility scale storage in the US, long duration or otherwise... Energy Dome claims to beat lithium-ion batteries by a wide margin, currently aiming for a duration of 8-24 hours. The company aims to hit the 10-hour mark with its first project in the U.S., the "Columbia Energy Storage Project" under the wing of the gas and electricity supplier Alliant Energy to be located in Pacific, Wisconsin... [B]ut apparently Google has already seen more than enough. An Energy Dome demonstration project has been shooting electricity into the grid in Italy for more than three years, and the company recently launched a new 20-megawatt commercial plant in Sardinia. Google points out this is one of several Google clean energy initiatives : In June Google signed the largest direct corporate offtake agreement for fusion energy with Commonwealth Fusion Systems. In October Google agreed to purchase "advanced nuclear" power from multiple small modular reactors being developed by Kairos Power. Google also partnered with a clean-energy startup to develop a geothermal power project that contributes carbon-free energy to the electric grid.

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The U.S. Department of Energy has greenlit four federal sites for private sector AI datacenters and nuclear-powered energy projects, aligning with Trump's directive to fast-track AI infrastructure using government land. "The four that have been finalized are the Idaho National Laboratory, Oak Ridge Reservation, Paducah Gaseous Diffusion Plant, and Savannah River Site," reports The Register. "These will now move forward to invite companies in the private sector to build AI datacenter projects plus any necessary energy sources to power them, including nuclear generation." The Register reports: "By leveraging DoE land assets for the deployment of AI and energy infrastructure, we are taking a bold step to accelerate the next Manhattan Project -- ensuring US AI and energy leadership," Energy Secretary Chris Wright said in a statement. Ironically -- or perhaps not -- Oak Ridge Reservation was established in the early 1940s as part of the original Manhattan Project to develop the first atomic bomb, and is home to the Oak Ridge National Laboratory (ORNL) that operates the Frontier exascale supercomputer, and the Y-12 National Security Complex which supports US nuclear weapons programs. The other sites are also involved with either nuclear research or atomic weapons in one way or another, which may hint at the administration's intentions for how the datacenters should be powered. All four locations are positioned to host new bit barns as well as power generation to bolster grid reliability, strengthen national security, and reduce energy costs, Wright claimed. [...] In light of this tight time frame, the DoE says that partners may be selected by the end of the year. Details regarding project scope, eligibility requirements, and submission guidelines for each site are expected to be released in the coming months.

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An anonymous reader quotes a report from Electrek: The "holy grail" of electric vehicle battery tech may be here sooner than you'd think. Mercedes-Benz is testing EVs with solid-state batteries on the road, promising to deliver over 600 miles of range. Earlier this year, Mercedes marked a massive milestone, putting "the first car powered by a lithium-metal solid-state battery on the road" for testing. Mercedes has been testing prototypes in the UK since February. The company used a modified EQS prototype, equipped with the new batteries and other parts. The battery pack was developed by Mercedes-Benz and its Formula 1 supplier unit, Mercedes AMG High-Performance Powertrains (HPP) Mercedes is teaming up with US-based Factorial Energy to bring the new battery tech to market. In September, Factorial and Mercedes revealed the all-solid-state Solstice battery. The new batteries, promising a 25% range improvement, will power the German automaker's next-generation electric vehicles. According to Markus Schafer, the automaker's head of development, the first Mercedes EVs powered by solid-state batteries could be here by 2030. During an event in Copenhagen, Schafer told German auto news outlet Automobilwoche, "We expect to bring the technology into series production before the end of the year." In addition to providing a longer driving range, Mercedes believes the new batteries can significantly reduce costs. Schafer said current batteries won't suffice, adding, "At the core, a new chemistry is needed." Mercedes and Factorial are using a sulfide-based solid electrolyte, said to be safer and more efficient.

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Longtime Slashdot reader Qbertino writes: Heise, a German IT news publisher, reports (English version via Google Translate) that the German state of Brandenburg is getting the world's tallest wind turbine, with an overall height of 300 meters (approximately 365 meters including rotor blades), designed to capture so-called third-level winds at higher altitudes. The article also includes a short 3D animation illustrating the construction and its size relative to standard modern wind turbines. The wind turbine uses a dual-framework base instead of a traditional closed tower to access stronger high-altitude winds, aiming to match offshore energy output while keeping onshore operating costs. According to Heise, the prototype could lead to the installation of up to 1,000 units across Germany -- fitting seamlessly between existing wind farms without needing extra land.

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