Our first long-duration energy storage partnership

Electricity powers modern life. And we’re accelerating a wide range of technologies, from enhanced geothermal to advanced nuclear to even fusion technologies, that can enable a future where on-demand electricity needs are met with clean energy, every hour of every day.

Today, we’re adding another technology to our portfolio: long duration energy storage (LDES). Through a new long-term partnership with Energy Dome, we plan to support multiple commercial projects globally to deploy their LDES technology.

Energy Dome’s novel CO₂ Battery 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. With this commercial partnership, as well as an investment in the company, we believe these projects can unlock new clean energy for grids where we operate before 2030, helping meet near-term electricity system needs and moving us closer to our 24/7 carbon-free energy goal.

By bringing this first-of-a-kind LDES technology to market faster, we aim to rapidly bring its potential to communities everywhere — making reliable, affordable electricity available around the clock and supporting the resilience of grids as they integrate growing amounts of renewable energy sources.

Why it’s important

Lithium-ion batteries, which typically store and dispatch power for 4 hours or less, have been critical for adding electricity capacity to grids and managing short-term fluctuations in renewable generation — when the sun isn’t shining or the wind isn’t blowing. Google’s support for these shorter-duration batteries has helped the grids we rely on, from Belgium to Nevada, meet peak electricity demand and reduce the need to ramp up fossil fuel power plants.

But what if we could store and dispatch clean energy for more than a few hours, or even a full day? Studies by the Electric Power Research Institute show that LDES technologies can cost-effectively integrate a growing volume of renewables onto power systems and contribute to more flexible, reliable grids. The LDES Council estimates that deploying up to 8 terawatts (TW) of LDES by 2040 could result in $540 billion in annual savings globally, thanks in part to their ability to optimize grids.

How the technology works

Energy Dome’s novel approach to energy storage uses carbon dioxide (CO₂) held in a unique dome-shaped battery. When there’s an abundance of renewable energy on the grid, the system uses that power to compress CO₂ gas into a liquid. When the grid needs more clean power, the liquid CO₂ expands back into a hot gas under pressure, creating a powerful force — much like steam escaping a pressure cooker — which spins a turbine. This spinning turbine generates carbon-free energy that can flow directly back into the grid for durations ranging from 8 to 24 hours.

Energy Dome has already signed contracts to build commercial scale projects in Italy, the U.S., and India. And their technology has already proven successful, having injected electrons into the Italian grid for more than three years, thanks to their commercial demonstration facility and now with their full-scale 20 megawatt (MW) commercial plant in Sardinia, Italy.

Why scale is crucial

LDES has the potential to commercialize much faster than some of the other advanced clean energy technologies in our portfolio. This means we can use it in the near term to help the electricity system grow more flexibly and reliably, alongside other tools we’re developing such as data center demand response.

By supporting multiple commercial deployments of Energy Dome’s technology globally, we aim to bring this technology to scale faster and at lower costs. Beyond our long-term collaboration with Energy Dome, we plan to support a growing range of LDES technologies under development through both commercial agreements that can catalyze wider market adoption of more mature technologies, like Energy Dome’s, as well as earlier-stage investments.

To remove barriers to the deployment and commercialization of LDES and other advanced carbon-free energy technologies, we’re also advocating for clean energy policies, ensuring that energy markets fully value firm, flexible carbon-free technologies, and advancing policy measures that enable infrastructure essential for grid decarbonization and energy security.

We’re excited to take this first step with Energy Dome to unlock the full potential of LDES. Our partnership will strengthen grid resilience while enabling us to power our technologies, grow our economies and keep the lights on in our homes with 24/7 clean energy.

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    American streets are incredibly dangerous for pedestrians. A San Carlos, California-based startup called Obvio thinks it can change that by installing cameras at stop signs — a solution the founders also say won’t create a panopticon. 

    That’s a bold claim at a time when other companies like Flock have been criticized for how its license plate-reading cameras have become a crucial tool in an overreaching surveillance state. 

    Obvio founders Ali Rehan and Dhruv Maheshwari believe they can build a big enough business without indulging those worst impulses. They’ve designed the product with surveillance and data-sharing limitations to ensure they can follow through with that claim.

    They’ve found deep pockets willing to believe them, too. The company has just completed a $22 million Series A funding round led by Bain Capital Ventures. Obvio plans to use those funds to expand beyond the first five cities where it’s currently operating in Maryland. 

    Rehan and Maheshwari met while working at Motive, a company that makes dashboard cameras for the trucking industry. While there, Maheshwari told TechCrunch the pair realized “a lot of other normal passenger vehicles are awful drivers.” 

    The founders said they were stunned the more they looked into road safety. Not only were streets and crosswalks getting more dangerous for pedestrians, but in their eyes, the U.S. was also falling behind on enforcement. 

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    “Most other countries are actually pretty good at this,” Maheshwari said. “They have speed camera technology. They have a good culture of driving safety. The U.S. is actually one of the worst across all the modern nations.”

    Maheshwari and Rehan began studying up on road safety by reading books and attending conferences. They found that people in the industry gravitated toward three general solutions: education, engineering, and enforcement. 

    In their eyes, those approaches were often too separated from each other. It’s hard to quantify the impact of educational efforts. Local officials may try to fix a problematic intersection by, say, installing a roundabout, but that can take years of work and millions of dollars. And law enforcement can’t camp out at every stop sign.

    Rehan and Maheshwari saw promise in combining them. 

    The result is a pylon (often brightly-colored) topped with a solar-powered camera that can be installed near almost any intersection. It’s designed not to blend in — part of the education and awareness aspect — and it’s also carefully engineered to be cheap and easy to install.

    The on-device AI is trained to spot the worst types of stop sign or other infractions. (The company also claims on its website it can catch speeding, crosswalk violations, illegal turns, unsafe lane changes, and even distracted driving.) When one of these things happen, the system matches a car’s license plate to the state’s DMV database. 

    All of that information — the accuracy of the violation, the license plate — is verified by either Obvio staff or contractors before it’s sent to law enforcement, which then has to review the infractions before issuing a citation.

    Obvio gives the tech to municipalities for free and makes money from the citations. Exactly how that citation revenue will get split between Obvio and the governments will vary from place to place, as Maheshwari said regulations about such agreements differ by state.

    That clearly creates an incentive for increasing the number of citations. But Rehan and Maheshwari said they can build a business around stopping the worst offenses across a wide swath of American cities. They also said they want Obvio to remain present in — and responsive to — the communities that use their tech.

    “Automated enforcement should be used in conjunction with community advocacy and community support, it shouldn’t be this camera that you put up that does revenue grab[s] and gotchas,” Maheshwari said. The goal is to “start using these cameras in a way to warn and deter the most egregious drivers [so] you can actually create communitywide support and behavior change.”

    Cities and their citizens “need to trust us,” Maheshwari said. 

    There’s also a technological explanation for why Obvio’s cameras may not become an overpowered surveillance tool for law enforcement beyond their intended use.

    Obvio’s camera pylon records and processes its footage locally. It’s only when a violation is spotted that the footage leaves the device. Otherwise, all other footage of vehicles and pedestrians passing through a given intersection stays on the device for about 12 hours before it gets deleted. (The footage is also technically owned by the municipalities, which have remote access.)

    This doesn’t eliminate the chance that law enforcement will use the footage to surveil citizens in other ways. But it does reduce that chance.

    That focus is what drove Bain Capital Ventures partner Ajay Agarwal to invest in Obvio.

    “Yes, in the short term, you can maximize profits, and erode those values, but I think over time, it will limit the ability of this company to be ubiquitous. It’ll create enemies or create people who don’t want this,” he told TechCrunch. “Great founders are willing to sacrifice entire lines of business, frankly, and lots of revenue, in pursuit of the ultimate mission.”

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    Honorable MentionsNow that the majority of new headphones and earbuds offer at least a modicum of noise canceling, it’d be impossible (and unproductive) to list everything we like above. If you haven’t yet found your fit, here are more favorites worth considering.Beyerdynamic Amiron 300 for $280: These simple-looking earbuds (8/10, WIRED Recommends) are a great way to experience quiet luxury. They have 10 hours of battery life with noise canceling engaged, and they have some of the best-sounding drivers for vocals I’ve heard in any earbuds.Sony WF-1000XM5 earbuds for $298: Sony’s fifth-generation flagship earbuds (7/10, WIRED Recommends) slim down while stepping up. These buds are smaller and slicker (maybe too slick when it comes to grabbing them) than the previous XM4 buds. As before, they provide great sound and noise canceling that outduels plenty of options, with a cost to match. In true Sony style, they serve up a truckload of adaptive features and EQ controls while retaining a solid eight hours of playback time per charge with ANC and 12 hours without it. —Ryan WaniataSoundcore Life Q30 for $60-85: Anker’s Soundcore line is nothing if not value-conscious, and the Life Q30 provide an embarrassing list of extras for their bargain-basement pricing. You’ll get clear and warm sound, great features, tons of battery life, and noise canceling that gets the job done even on a long flight, though it can’t keep up with flagship pairs. It’s hard to complain when they cost hundreds less, especially with sale pricing that sometimes drops to around $50.Sony WH-1000XM4 for $250-350: Sony’s WH-1000X lineup has produced some of the best noise-canceling headphones for nearly a decade, and the aging WH-1000XM4 (9/10, WIRED Recommends) are no exception. They periodically go on sale for under $300, but it’s getting harder to find them below full price, which is tough for a five-year-old model.Bowers & Wilkins Pi8 Earbuds for $400: Bowers & Wilkins’ Pi8 (8/10, WIRED Recommends) offer a sleek, comfortable design, solid (albeit not Bose-beating) noise canceling, and great sound. Call quality is also excellent, which makes these perhaps the perfect business-class earbuds, though their hefty price won’t appeal to everyone.Bowers and Wilkins PX7 S2e for $400: The Px7 S2e feature upgraded audio quality for fantastic sound in stylish and sophisticated design. They’re also among the most comfortable headphones we’ve tested, but their noise canceling doesn’t rise to the level of the top players for the money.Beyerdynamic Aventho 300 for $400: These over-ears from Beyerdynamic (7/10, WIRED Recommends) have the brand’s classic studio sound, with a tight crisp high range and punchy lows. The downside is that they don’t cancel noise quite as well as models from Sony, Bose, and others above. Still, they sound great and are worth considering, especially if you can snag them on sale.Soundcore Space A40 for $60: Another top value buy from Anker’s Soundcore brand, the Space A40 (8/10, WIRED Recommends) are some of our favorite cheap earbuds, especially as their price continues to fall. You’ll find a classy design, lots of features, quality sound, and great noise canceling for their class.Apple Beats Fit Pro for $199: The Beats Fit Pro are an aging but still knockout pair of wireless buds, with great sound, easy-access physical buttons, and solid noise canceling to boot. Add to that six hours of battery life, spatial audio compatibility with Apple Music and other services, and you’ve got one of the best pairs of earbuds ever “designed in California.”Epos/Sennheiser Adapt 660 for $210: Want excellent sound, a comfortable fit, and high-quality noise-canceling tech for less than what you’d pay for Sony or Bose headphones? Check out this collaboration between Epos and Sennheiser. The Epos/Sennheiser Adapt 660 (8/10, WIRED Recommends) sound fantastic and are some of the lightest noise-canceling headphones I’ve ever worn. They also feature excellent microphones for great silence on calls and Zooms.

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    Hyperscalers and data center developers are in a pickle: They all want to add computing power tomorrow, but utilities frequently play hard to get, citing years-long waits for grid connections.

    “All the AI data centers are struggling to get connected,” Amit Narayan, founder and CEO of Gridcare, told TechCrunch. “They’re so desperate. They are looking for solutions, which may or may not happen. Certainly not in the five-year timelines they cite.”

    That has led many data centers to pursue what’s called “behind the meter” power sources — basically, they build their own power plants, a costly endeavor that hints at just how desperate they are for electricity.

    But Narayan knew there was plenty of slack in the system, even if utilities themselves haven’t discovered it yet. He has studied the grid for the last 15 years, first as a Stanford researcher then as a founder of another company. “How do we create more capacity when everyone thinks that there is no capacity on the grid?” he said.

    Narayan said that Gridcare, which has been operating in stealth, has already discovered several places where extra capacity exists, and it’s ready to play matchmaker between data centers and utilities.

    Gridcare recently closed an oversubscribed $13.5 million seed round, the company told TechCrunch. The round was led by Xora, Temasek’s deep tech venture firm, with participation from Acclimate Ventures, Aina Climate AI Ventures, Breakthrough Energy Discovery, Clearvision, Clocktower Ventures, Overture Ventures, Sherpalo Ventures, and WovenEarth.

    For Narayan and his colleagues at Gridcare, the first step to finding untapped capacity was to map the existing grid. Then the company used generative AI to help forecast what changes might be implemented in the coming years. It also layers on other details, including the availability of fiber optic connections, natural gas, water, extreme weather, permitting, and community sentiment around data center construction and expansion. 

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    “There are 200,000-plus scenarios that you have to consider every time you’re running this study,” Narayan said.

    To make sure it’s not running afoul of regulations, Gridcare then takes that data and weighs it against federal guidelines that dictate grid usage. Once it finds a spot, it starts talking with the relevant utility to verify the data.

    “We’ll find out where the maximum bang for the buck is,” Narayan said.

    At the same time, Gridcare works with hyperscalers and data center developers to identify where they are looking to expand operations or build new ones. “They have already told us what they’re willing to do. We know the parameters under which they can operate,” he said.

    That’s when the matchmaking begins.

    Gridcare sells its services to data center developers, charging them a fee based on how many megawatts of capacity the startup can unlock for them. “That fee is significant for us, but it’s negligible for data centers,” Narayan said.

    For some data centers, the price of admission might be forgoing grid power for a few hours here and there, relying on on-site backup power instead. For others, the path might be clearer if their demand helps green-light a new grid-scale battery installation nearby. In the future, the winner might be the developer that is willing to pay more. Utilities have already approached Gridcare inquiring about auctioning access to newfound capacity.

    Regardless of how it happens, Narayan thinks that Gridcare can unlock more than 100 gigawatts of capacity using its approach. “We don’t have to solve nuclear fusion to do this,” he said.

    Update: Corrected spare capacity on the grid to gigawatts from megawatts.

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