Tech
Test procedure developed for gridforming inverters
In addition to expanding renewable energy generation, a successful energy transition requires stable system operation at all times. To achieve this, renewable energies and storage power plants will have to take on extensive system services and essential grid-forming properties in the future.
In the “GFM Benchmark” project, Fraunhofer ISE developed a test procedure for grid-forming inverters on behalf of the four German transmission system operators and applied it to devices from various manufacturers. On the one hand, the project provided a comprehensive overview of the market readiness of grid-forming inverters.
On the other hand, the project results provide an important practical check for new national and European testing standards.
The fully integrated grid components with grid-forming properties planned by the transmission system operators will not be able to fully meet the demand for grid-forming power. Therefore, customer systems must also contribute to stabilizing the power grid: They should behave in a grid-forming manner, i.e., contribute to providing a grid voltage with stable amplitude and frequency.
But what exactly does that mean? In recent years, many scientific studies and publications have been produced on this topic, and some countries have grid operator documents that describe grid-forming behavior. However, there is no uniform standardization or definition, which leaves room for interpretation.
Therefore, in the first step of the project, the Fraunhofer ISE team worked with the grid operators 50Hertz Transmission GmbH, Transnet BW GmbH, Amprion GmbH, and Tennet TSO GmbH to develop a measurement and evaluation procedure for the stabilizing properties of inverters, incorporating findings from both grid operation and research.
Major differences in grid-forming behavior
“We wanted to see what manufacturers understand by grid formation and how they implement this in the programming of their devices,” explains department head Dr. Sönke Rogalla from Fraunhofer ISE. “So we invited them to put their devices to the test in our laboratory.”
Seven companies responded to the call and had their storage inverters, which cover a power range from a few kilowatts to five megawatts, measured according to the new test procedure. They came from different countries and were at different technology readiness levels, from pilot to prototype to series production.
The researchers used the tests to investigate the differences between the devices in terms of grid formation by exposing them to various operating conditions in the laboratory. In addition to normal operation, critical grid situations such as rapid frequency changes, short circuits, and phase jumps were simulated.
“The devices exhibited similar behavior under clearly defined requirements. In other cases, however, there were major differences, and we were able to provide the manufacturers with suggestions for optimization for almost every device,” explains project manager Roland Singer from Fraunhofer ISE. The willingness and commitment of manufacturers to advance the development of grid-forming inverters is high.
Proven verification methods are essential for market launch
At the same time, the project provided relevant practical experience in testing grid-forming inverters and optimized the test procedures. Important findings were incorporated into the ongoing standardization work at the European level even during the project phase. The Fraunhofer ISE team contributed its expertise to the creation of the VDE FNN note “Grid-forming properties.”
The recently published document describes the requirements and verification procedures for grid-forming units. It forms the normative basis for participation in the future market for instantaneous reserve, which will start at the beginning of 2026 and represents an additional interesting remuneration path, especially for battery storage systems.
With its experience in the “GFM Benchmark” project, the team at Fraunhofer ISE is ideally positioned to support manufacturers and users of grid-forming units with certification measurements in accordance with the FNN note. Standardization work at the European level is also progressing. ENTSO-E, the network of European transmission system operators, is working on an implementation guide with comprehensive grid-forming requirements, which should facilitate the transition to national regulations.
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Tech
It’s Time to Wrangle Your Messy Wires With Our Handy Guide to Cable Management
There’s a reason we’re called WIRED. If there’s one thing most of today’s gadgets have in common, it’s that they typically need to be plugged in from time to time. But all those cables, cords, and wires can be tough to manage. They don’t have to end up in a tangled nest under your desk; you can bring order to the cable chaos.
As a gadget reviewer, I have more cords than most people, which is why I also have a regimented cable management strategy to keep everything orderly. Here are my tips and product recommendations for hiding those cords and power strips, and keeping your desktop tidy.
Jump To:
Planning and Prep
Start by surveying the scene, unplugging and untangling everything, and removing anything that doesn’t need to be there. You might be surprised to find a stray USB-B or Micro-USB you haven’t used in years in the mix. Before you get started on cable management, take a slightly damp microfiber cloth and wipe down all the surfaces and cables. Now, you can start planning routes and figuring out which cables it would make sense to bundle together.
Ideally, cables will be the exact required length, so if you have spares or you don’t mind snagging some new cables, it’s worth switching and getting as close as possible to exact lengths to reduce the excess cable you have to hide. If you have a standing desk, remember to take into account the cable length required for a standing position (trust me, dear reader, it’s no fun when you hit stand on the desk and it pulls your PC tower into the air by a DisplayPort cable that is now forever stuck in that port).
Cable Management
Tidying your tech often comes back to cable management, but there are several ways to keep those cords neatly out of sight. Many desks have channels, grommets, and power strip trays built-in, so have a quick look to make sure you’re using what’s available. Some monitor arms also have built-in cable management. You also likely have a bunch of cable ties in your junk drawer or toolbox, so gather them together.
Tech
This Jammer Wants to Block Always-Listening AI Wearables. It Probably Won’t Work
Deveillance also claims the Spectre can find nearby microphones by detecting radio frequencies (RF), but critics say finding a microphone via RF emissions is not effective unless the sensor is immediately beside it.
“If you could detect and recognize components via RF the way Spectre claims to, it would literally be transformative to technology,” Jordan wrote in a text to WIRED after he built a device to test detecting RF signatures in microphones. “You’d be able to do radio astronomy in Manhattan.”
Deveillance is also looking at ways to integrate nonlinear junction detection (NLJD), a very high-frequency radio signal used by security professionals to find hidden mics and bugs. NLJD detectors are expensive and used primarily in professional contexts like military operations.
Even if a device could detect a microphone’s exact location, objects around a room can change how the frequencies spread and interact. The emitted frequencies could also be a problem. There haven’t been adequate studies to show what effects ultrasonic frequencies have on the human ear, but some people and many pets can hear them and find them obnoxious or even painful. Baradari acknowledges that her team needs to do more testing to see how pets are affected.
“They simply cannot do this,” engineer and YouTuber Dave Jones (who runs the channel EEVblog) wrote in an email to WIRED. “They are using the classic trick of using wording to imply that it will detect every type of microphone, when all they are probably doing is scanning for Bluetooth audio devices. It’s totally lame.” Baradari reiterates that the Spectre uses a combination of RF and Bluetooth low energy to detect microphones.
WIRED asked Baradari to share any evidence of the Spectre’s effectiveness at identifying and blocking microphones in a person’s vicinity. Baradari shared a few short videoclips of people putting their phones to their ears listening to audioclips—which were presumably jammed by the Spectre—but these videos do little to prove that the device works.
Future Imperfect
Baradari has taken the critiques in stride, acknowledging that the tech is still in development. “I actually appreciate those comments, because they’re making me think and see more things as well,” Baradari says. “I do believe that with the ideas that we’re having and integrating into one device, these concerns can be addressed.”
People were quick to poke fun at the Spectre I online, calling the technology the cone of silence from Dune. Now, the Deveillance website reads, “Our goal is to make the cone of silence become reality.”
John Scott-Railton, a cybersecurity researcher at Citizen Lab, who is critical of the Spectre I, lauded the device’s virality as an indication of the real hunger for these kinds of gadgets to win back our privacy.
“The silver lining of this blowing up is that it is a Ring-like moment that highlights how quickly and intensely consumer attitudes have shifted around pervasive recording devices,” says Scott-Railton. “We need to be building products that do all the cool things that people want but that don’t have the massive privacy- and consent-violation undertow. You need device-level controls, and you need regulations of the companies that are doing this.”
Cooper Quintin, a senior staff technologist at the Electronic Frontier Foundation, echoed those sentiments, even if critics believe Deveillance’s efforts to be flawed.
“If this technology works, it could be a boon for many,” Quintin wrote in an email to WIRED. “It is nice to see a company creating something to protect privacy instead of working on new and creative ways to extract data from us.”
Tech
I’ve Tried Every Pixel Phone Ever Made—Here Are the Best to Buy Right Now
Portrait Light: You can change up the lighting in your portrait selfies after you take them by opening them up in Google Photos, tapping the Edit button, and heading to Actions > Portrait Light. This adds an artificial light you can place anywhere in the photo to brighten up your face and erase that 5 o’clock shadow. Use the slider at the bottom to tweak the strength of the light. It also works on older Portrait mode photos you may have captured. It works only on faces.
Health and Accessibility Features
Cough & Snore Detection (Tensor G2 and newer): On the Pixel 7 and newer, you can have your Pixel detect if you cough and snore when sleeping, provided you place your Pixel near your bed before you nod off. This will work only if you use Google’s Bedtime mode function, which you can turn on by heading to Settings > Digital Wellbeing & Parental Controls > Bedtime Mode.
Guided Frame (Tensor G2 and newer): For blind or low-vision people, the camera app can now help take a selfie with audio cues (it works with the front and rear cameras). You’ll need to enable TalkBack for this to work (Settings > Accessibility > TalkBack). Then open the camera app. It will automatically help you frame the shot.
Simple View: This mode makes the font size bigger, along with other elements on the screen, like widgets and quick-settings tiles. It also increases touch sensitivity, all of which hopefully makes it easier to see and use the screen. You can enable it by heading to Settings > Accessibility > Simple View.
Safety and Security Features
Theft Protection: This is a broader Android 15 feature, but essentially, Google’s algorithms can figure out if someone snatches your Pixel out of your hands. If they’re trying to get away, the device automatically locks. Additionally, with another device, you can use Remote Lock to lock your stolen Pixel with your phone number and a security answer. To toggle these features on, go to Settings > Security & privacy > Device unlock > Theft protection.
Identity Check: If your Pixel detects you’re in a new location, Identity Check will require your fingerprint or face authentication before you can make any changes to sensitive settings, offering extra peace of mind in case you lose your phone or if it’s stolen. You can enable this in Settings > Security & privacy > Device unlock > Theft protection > Identity Check.
Courtesy of Google
Private Space: Another Android 15 addition, Pixel phones finally have a feature that lets you hide and lock select apps. You can use a separate Google account, set a lock, and install any app to hide away. To set it all up, head to Settings > Security & privacy > Private space.
Satellite eSOS (Pixel 9 and Pixel 10 series, excluding Pixel 9a): Like Apple’s SOS feature on iPhones, you can now reach emergency contacts or emergency services even when you don’t have cell service or Wi-Fi connectivity. It’s not just available in the continental US, but also in Hawaii, Alaska, Canada, and even Europe.
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