The EV blog Electrek reports: A Clinton Township, Michigan man was charged $418 for a single EV charging session at Elder Hyundai's Macomb Township store after finding the charger listed as publicly available on the EVgo app, but didn't discover the charges until after wrapping up his 40-ish minute charging session. "I was flabbergasted," explained Stanley Kpenkann, who had been driving a rented Chevy Bolt EV at the time. "Never in my wildest dreams did I think I would be saddled with a bill of $418 for a charging session." After calling EVgo to report the error, he found that the exorbitant charge wasn't a mistake at all - Elder Hyundai was charging customers an eye-gouging $5 per kWh, plus another $5 for every minute connected. A local news report notes that "After back-and-forth with EVgo, the company processed what it called a goodwill refund of $405." (And the dealership argued their charger was reserved for its own customers and vehicles, so they set prices high to deter outside use.) But Electrek argues the story "speaks to much larger problems among the EV charging business in particular and car dealerships in general..." [In June] Plug & Play EV's Steve Birkett took to LinkedIn to call out his local Hyundai dealer in Union, NJ for charging a ridiculous $15 per kWh to top off his IONIQ 5 (!)... Even worse, he noted that a number of area dealerships that had listed their ports as "public" were actively discouraging public use with signs and stickers designed to turn people away... [U]nlike gas stations, EV charge point operators in many states aren't required to clearly advertise what they'll charge before a driver plugs in in the same way that gas stations are: with clearly legible signage that's visible from the street.

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A new study published Friday in AGU Advances "depicts the most advanced picture yet of how a rare but massive solar storm could affect some US industries and electric systems more than others," reports CNN. "During a 250-year solar storm, the East Coast would have widespread potential for grid failure." Researchers modeled what a Carrington Event — a 1-in-150-year geomagnetic storm or even rarer — could mean for the modern day. They estimate the US economy would lose about $1.5 billion to $2 billion per day from direct and indirect costs, as millions of people face power outages. The findings show the most vulnerable areas are the Northeast and the Northern Plains, especially locations at higher latitudes. No one knows when the next big storm will hit. While the most severe geomagnetic storms are labeled as once-in-a-century or rarer, these events don't follow a fixed schedule. "That timing only averages out on very long timescales," said Anna Kelbert, a geophysicist at the Harvard-Smithsonian Center for Astrophysics, who was not involved in the study but previously studied solar storm effects on power grids. "The event can occur at any time, as soon as a week from now, or centuries later...." [Shawn Dahl, service coordinator at the Space Weather Prediction Center operated by the National Oceanic and Atmospheric Administration in Boulder, Colorado], said the sun is now coming down from a period of heightened activity, which is also when some of the biggest storms to hit Earth have occurred in the past. "We still need a lot of work to be ready...." "We haven't really seen events like this size in the modern era, where we've had all of this high technology and we've had the power grid of this size," said Ed Oughton, researcher at George Mason University and lead author of the new study... Because the US grid's actual structure is proprietary for security reasons, the team used engineering models to create various network and transformer setups including the 10,464 substations and 16,256 transmission lines found across the country... The grid structure also contributes to higher risk in some areas. For instance, the eastern US is linked together in a single grid interconnection. A voltage issue in Maine, if not isolated early, could cascade through the grid to Washington, DC. The West works similarly, whereas the Texas interconnection operates mostly within the state... Power is restored over time depending on any alternative electrical paths that could bypass the substation or availabilities of spare transformers, for instance. "This nationwide analysis shows that we are currently ill-prepared to face a major magnetic storm, and that the societal impacts would be catastrophic," Kelbert said. "The study estimates power disruptions for 5.1 million people and 135,000 businesses," according to the article, and "The outages could last from hours to days to weeks depending on the damage and resources available to get back online, said Oughton."

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Falling prices have made grid-scale storage batteries more attractive, reports Bloomberg. But after decades of stagnant investment, America's grids "are racing to make the upgrades needed to plug them in," with supplies straining for the necessary equipment. Demand for batteries has skyrocketed as electricity use across the U.S. swells, driven by data centers' booming energy needs and increasing electrification. It's also getting harder to get them connected to power grids... As those upgrades get delayed, storage projects are piling up in interconnection queues from coast to coast. For example, Consolidated Edison Inc., a major utility in New York state, says over the last two years the volume of battery storage projects waiting to be connected has grown by 300%... "The whole process of interconnecting these new power plants got really log-jammed and bottlenecked," said Joseph Rand, an energy policy researcher at the Lawrence Berkeley National Laboratory... Nationwide, some 750 gigawatts of energy storage projects — roughly equivalent to the generating capacity of more than 700 nuclear reactors — are in line to get grid connections, according to the lab's research. Not all of these projects will get built. Many developers already abandoned the queue because of delays. Still, the waiting time is increasing; the median was five years in 2025, up from a year and a half in 2015. The flood of battery projects is expected to continue. Wood Mackenzie, an energy consultancy, projects the U.S. energy storage market will quadruple in the next six years... [Shortages in key equipment] have driven up construction costs and time lines for grid upgrades, leaving utilities struggling to build fast enough. A drought of skilled workers is further slowing them down... In California, PG&E Corp., the state's largest utility, told regulators in January that a key driver of delays was long lead times for specialized equipment. Procuring certain breakers could take nearly four years, according to the utility, which reported a 300% increase in its interconnection workload compared to prior years. In Northern California, for example, holdups to circuit breaker upgrades to a substation in Solano County led to projected delays for two battery projects worth a combined 450 megawatts. Transmission line work in the Bay Area has put another 800 megawatts of energy storage at risk of delay, according to PG&E. Last year New York's Con Ed started requiring developers to help pay for upgrades if their projects will push power demand and strain infrastructure. But that also drew criticism: According to a survey conducted by the trade group New York Battery and Energy Storage Technology Consortium (NY-BEST), the new methodology raised costs by an average of $21 million per project, a 14-fold increase. At least 25 projects have been canceled as a result, according to the group. Battery advocates have appealed to state regulators to get Con Ed to abandon the new policy. Thanks to Slashdot reader Bruce66423 for sharing the news.

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AleRunner writes: "Solar has been doing the 'heavy lifting' to help Europe meet its energy needs amid a string of blistering heatwaves," Euronews tells us. Meanwhile, as Europe's energy demands rise with the heat, jellyfish have been causing shutdowns and reduced power output at multiple reactors at French nuclear plants, as we already discussed. Euronews reports: A new analysis from energy think-tank Ember found that solar output in European countries rose by up to 17 percent on heatwave days in June and July. Researchers say that this helped power the grid as electricity demand increased by as much as a quarter on hot days. Heatwaves often trigger a spike in electricity consumption due to the sudden need for cooling, mainly from energy-intensive air conditioning (A/C) units. The International Energy Agency (IEA) estimates that space cooling, which is mostly A/C units and fans, consumed around seven percent of the world's electricity in 2022. Even in countries where A/C ownership is low, countries experience energy demand spikes when scorching temperatures hit. During the early summer heatwaves of 2025, France, for example, recorded an evening electricity peak that was 25 percent above the off-season average due to air conditioning. Ember's analysis found that during the late-June heatwave this summer, daily electricity demand rose byup to 28 percent in Italy, 23 percent in Hungary, 14 percent in France and 13 percent in Spain compared with pre-heatwave days. It says as heatwave-driven demand increased, solar was the only major power source to perform "better than usual." Compared with other days in June and July, average daily solar generation during the heatwaves was 17 percent higher in France and Hungary, five percent higher in Spain and the same in Italy.

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An anonymous reader quotes a report from Reuters: PJM Interconnection, the biggest U.S. grid operator, proposed on Thursday a new framework that would force data centers to use back-up generators when electricity supply on the grid approaches dangerously low levels. The grid operator's proposal dovetails with President Donald Trump's Ratepayer Protection Pledge, a non-binding initiative to protect residential customers from getting saddled with costs related to data center power consumption, PJM said. A new emergency procedure would notify utilities to reduce or transfer the electricity demand from data centers and other large power users ahead of any action that would shut off traditional consumers such as households. PJM said it does not, however, currently have the authority to curtail power to those sites and would require the cooperation of individual state governments. PJM manages the electricity for 67 million people in a territory that stretches from Washington, D.C. to Chicago. Its proposal highlights a growing tension between the rapid expansion of data centers and the ability of the nation's power grid to keep up. If PJM cannot close its supply gap, millions of residents and businesses face an increased risk of blackouts, and the cost of new generation could be passed on to other power consumers. At its recent capacity auction, PJM hit its $325-per-megawatt-day price cap but still came up about 6.8 GW short of its projected reliability needs. With rapidly expanding data centers adding pressure to the grid, PJM has also proposed creating a registry to track their locations and power consumption.

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A "massive influx" of jellyfish forced Electricite de France SA to shut three units at its Gravelines nuclear power plant this week and reduce output at a fourth, reports Bloomberg. Just as summer temperatures surged, 3.2 gigawatts went offline — and the power utility was already facing cuts other nuclear sites as high temperatures reduced the river water available for cooling. More details from ScienceAlert: As Politico reports, the Gravelines nuclear power plant spent hundreds of thousands of euros in 2025 to stop this happening again, only to see a repeat 12 months later... Increasing temperatures in the water can produce more of the plankton and animals that jellyfish feed on, as well as accelerating life cycles and extending breeding seasons.... It's not just jellyfish that have a habit of disrupting human energy infrastructure. Last year in Connecticut, a single raccoon caused more than a thousand power outages, as reported by CT Insider. It's not clear exactly what the raccoon did, but we do know it somehow got into a substation and caused damage to the equipment in there. The unwitting act of sabotage left more than 2,500 customers in the area without power at one stage — though repairs were swiftly carried out. Reuters reported Tuesday on how the French utility responded to their jellyfish swarm: EDF has installed fixed cameras at the intake canals and on the filter drum screens to detect any incoming blockages as soon as possible, an engineer told Reuters... The company has also partnered with a French fishing organisation and a sea rescue organisation, which monitor for swarms and can raise an alert to launch targeted trawling operations by fishermen to reduce the swarm's density before it reaches the plant, the engineer said. The fishing boats were deployed [last] Saturday after an initial alarm was raised, limiting the impact from the swarm. The jellyfish that are already on site are being removed with vacuum trucks, he said. No new jellyfish are arriving, so cleanup is finishing, which should lead to a quick restart of the units, they added... Scientists warn such events could become more common due to factors including global warming, the arrival of invasive species, habitat loss of predators and over-fishing. Thanks to Slashdot reader Bruce66423 for sharing the news.

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"In a milestone for energy storage technology, Peak Energy has selected Sacramento, California, as the home of America's first manufacturing facility dedicated to grid-scale sodium-ion battery systems," according to the sustainability news site Intelligent Living. The move "represents the first large-scale test of whether sodium-ion technology can deliver on its promise of cheaper, safer, and more sustainable grid storage at a scale that actually moves the needle for the U.S. electricity system." The 183,000-square-foot plant, representing a $71 million investment, will produce up to 4 gigawatt-hours of storage annually when production begins in early 2027. That is enough output each year to serve nearly four million homes, and it signals that sodium-ion technology has moved from laboratory promise to commercial reality... Peak Energy, founded in 2023 by former engineers from Tesla, Enovix, and Fluence, announced its Sacramento site selection on July 8, 2026, after a nationwide search that ultimately chose California over Texas... The factory is designed as a system assembly plant rather than a cell fabrication facility. Peak will receive sodium-ion cells, manufactured to its specifications by Chinese suppliers, and assemble them into complete 30-foot-long, 100,000-pound containerized storage systems. Each GS1.1 unit stores 3.1 megawatt-hours, enough to fully charge more than 40 electric vehicles... In the United States, Peak Energy has emerged as the most advanced grid-scale player. It has secured more than 6 GWh of customer commitments, including a landmark deal with Jupiter Power for up to 4.75 GWh through 2030, valued at up to $500 million. Energy Vault has committed to 1.5 GWh of sodium-ion storage for AI data center applications, and RWE Americas has already deployed Peak's first grid-scale system on the MISO grid in Wisconsin, energized in March 2026. General Motors is codeveloping sodium-ion cells with Peak at its Wallace Battery Cell Innovation Center in Michigan, testing 170- and 190-amp-hour cell formats with domestic production targeted for 2028. China, however, remains the global heavyweight. CATL, the world's largest battery manufacturer, unveiled its TENER Sodium energy storage system in June 2026 with a rated cycle life of 15,000 cycles and a projected 25-to-30-year service life. In April 2026, CATL signed a 60 GWh supply agreement with HyperStrong, the largest sodium-ion deal announced to date. BYD, HiNa Battery, and Farasis are also shipping commercial sodium-ion products, including batteries for a $400 electric scooter already on sale in China... Peak Energy's first commercial shipments from Sacramento are slated for the first quarter of 2027, with contracted deliveries to Jupiter Power, Energy Vault, and RWE Americas following shortly after. The company has publicly stated it needs to deploy over $100 million in product in 2026, up from roughly $10 million in 2025, and the Sacramento facility is sized to meet that demand. At the system level, sodium-ion grid storage is already operating. Peak's pilot installation at the SolarTAC testing facility in Watkins, Colorado, stores 3.5 MWh and has been running since 2025. The RWE Americas deployment in Wisconsin, energized in March 2026, marks the first time sodium-ion batteries have backed up the MISO grid, which serves 15 central U.S. states and the Canadian province of Manitoba... According to the International Energy Agency, sodium-ion manufacturing capacity announcements have accelerated sharply since 2024, with global pipelines now exceeding 400 GWh annually... Researchers are also pushing the technology forward. In May 2026, a team at the National University of Singapore published a breakthrough in all-solid-state sodium batteries that could further reduce costs and eliminate the flammable liquid electrolytes found in both lithium-ion and current sodium-ion designs. "The technology's sweet spot is utility-scale, multi-megawatt-hour installations," the article points out, "where the system-level cost savings from passive cooling and longer cycle life outweigh the per-cell energy density penalty..." The article also points out observations from the American Battery Leadership Coalition, an industry group advocating for sodium-ion policy support, that sodium-ion batteries can be built almost entirely from American materials, including coal, sawdust, and agricultural waste. This week Syntropic Power and UNIGRID Inc. also announced "a major partnership to commercialize UNIGRID's proprietary sodium chromium oxide (NaCrO2) battery technology across North America," reports Interesting Engineering, "targeting one gigawatt-hour (1 GWh) of deployments in 2027. The technology could be used in residential, virtual power plant, and large-scale stationary grid applications..." Independent testing by the ISO-accredited Rochester Institute of Technology (RIT) Battery Development Center revealed something surprising. UNIGRID's 210Ah cells displayed endothermic behavior during charging. This means the chemical reaction actually absorbs heat rather than dumping it into the environment. Coupled with a 97.9% cell-level round-trip energy efficiency and remarkable thermal stability under abuse testing, the battery stays cool on its own. The 210Ah sodium-ion cells deliver up to 218Ah of discharge capacity. It demonstrated exceptional durability, retaining over 99% of its capacity after 1,000 full discharge cycles, as well as heat-absorbing behavior during charging. These validated strengths allow Syntropic to optimize its product designs, enabling platforms like GridSpan [its modular DC platform designed for large-scale energy applications with flexible discharge durations ranging from 20 minutes to 20 hours] to operate safely and efficiently at grid scale without needing complex mechanical cooling systems... Commercialization kicks off with Tenet, a safety-focused, wall-mounted system for residential, light-commercial, and virtual power plant uses... Relying on abundant and widely distributed raw materials like sodium and chromium — rather than lithium and cobalt — protects manufacturers from geopolitical price spikes and material shortages. Apart from offering an alternative to lithium, a successful rollout will demonstrate that the most durable energy storage is the kind that could stay cool entirely on its own. Thanks to Slashdot reader fjo3 for sharing the news.

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An anonymous reader quotes a report from the BBC: German energy company RWE has said it will abandon its offshore wind projects in the U.S. after reaching a $1.2 billion payout deal with President Donald Trump's Department of the Interior (DoI). RWE said that it will now reinvest the sum into conventional gas projects, including $900 million in a liquefied natural gas (LNG) export terminal project in Louisiana. "After careful consideration, it was determined there is no path forward to permit these projects in the US for the foreseeable future," the company said in a statement. RWE said it has agreed to relinquish its leases off the California and Louisiana coasts as well as in the New York Bight. Overall, the German firm plans to invest approximately $19.6 billion in the U.S. over the next six years "to grow its generation capacity." Interior Secretary Doug Burgum said in a statement posted on X that Americans deserve an energy system built on common sense and not one dependent on "costly subsidies." "We welcome RWE's agreement and voluntary investment in projects that strengthen our nation's energy security," he added. Earlier this year, the DOL reached a deal with TotalEnergies putting an end to the French company's offshore wind projects in the U.S. "Instead, the firm agreed to reroute investment to build a LNG plant in Texas and to develop 'upstream conventional oil' in the Gulf of Mexico," reports the BBC. Another similar deal was signed with Charlotte-based Duke Energy last month to terminate the company's offshore wind lease in the Carolina Long Bay area.

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An anonymous reader quotes a report from Ars Technica: Nowhere is the US data center boom bigger than in Texas. But less than a year after declaring Texas the "epicenter of AI development," Governor Greg Abbott has declared a moratorium on all new power grid connections for data centers -- at least until developers provide more information about their projects' potential impacts on the grid and communities. The Republican governor directed regulators in an August 3 announcement at the Public Utility Commission of Texas and the grid operators at the Electric Reliability Council of Texas (ERCOT) to perform a "comprehensive verification and audit of all data centers advancing through ERCOT's interconnection process." As an independent system operator, ERCOT oversees a power grid that operates separately from the rest of the United States and provides services to most of Texas. Texas has aggressively courted data center development with its availability of cheap land and relatively abundant energy resources, along with offering state incentives, like tax breaks and fewer regulations. That puts the state on track to surpass Virginia in becoming the largest US data center market. But the recent AI boom and the accompanying frenzy of data center development threaten to overwhelm the Texas grid on paper, despite the state leading the country in adding new power generation. The ERCOT interconnection queue currently includes more than 1,800 projects representing over 474 gigawatts' worth of requests to connect to the Texas grid -- more than five times Texas' record peak electricity demand -- and about 90 percent of those power connection requests come from data centers. "That unprecedented load growth could endanger the reliability and stability of the Texas electric grid," according to the statement from Abbott's office. Many of those data center projects may never materialize for various reasons. But ERCOT has still forecast that data center demand and other factors could drive statewide electricity demand to double the current demand record by 2032, according to The Texas Tribune. The review will examine each project's projected electricity consumption, reliance on the grid and state incentives, ownership, and water use. It will also assess measures intended to "reduce impacts on neighboring property owners and communities," including noise controls, lighting, traffic improvements, setbacks, and emergency planning. Ars Technica notes that the directive does not address air pollution or greenhouse-gas emissions and does not apply to data centers generating their own power on-site.

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