This cool tech will turn existing fiber optics into smart sensors on Minnesota’s grid
Not-for-profit power cooperative Great River Energy, which serves 1.7 million people across Minnesota and Wisconsin, has partnered with Prisma Photonics to roll out real-time monitoring technology across 90 miles of transmission lines in northern Minnesota. Prisma Photonics will provide its PrismaPower system to track threats like wildfires, ice, wind, and physical damage to the Minnesota grid.
The multi-year project will install PrismaCircuit and PrismaClimate across five key transmission lines connected to four substations using existing fiber optic lines. The goal is to strengthen the grid ahead of Minnesota’s next winter season. These lines, spread across central and northern Minnesota, will now be under constant surveillance without the need for traditional sensors.
“We’re leveraging innovative new technologies that maximize our existing infrastructure investments,” said Priti Patel, vice president and chief transmission officer at Great River Energy. “This solution allows us to utilize our current fiber optic network in a new way to increase resilience in areas of northern and central Minnesota.”
Instead of installing physical sensors on power lines, Prisma Photonics’ technology taps into fiber optic cables already in place, transforming them into an advanced sensing system. Here’s how the company’s works:
Prisma Photonics Fiber Sensing works by connecting an optical interrogator unit into a standard single-mode optical fiber. It is one fiber, part of a cable laid alongside the monitored asset, probably for communications purposes. The Interrogator transmits optical pulses that propagate down the fiber. A minute fraction of the light is reflected from each point along the fiber. The Interrogator measures the reflected light to determine the strain, temperature, pressure, and other quantities over hundreds of kilometers of fiber with sub-meter resolution. The fiber is turned into a continuous acoustic sensor – as if there were tens of thousands of microphones spanning hundreds of kilometers.
Prisma Photonics says this means faster deployment, no service interruptions, and no need for specialized crews in all weather conditions.
Dr. Eran Inbar, CEO of Prisma Photonics, said, “Our partnership with Great River Energy demonstrates how utilities can extract additional value from their existing infrastructure to enhance grid resilience while avoiding traditional sensor-based solutions’ complexity and maintenance requirements.”
Read more: Minnesota’s largest coal plant goes solar: Sherco Solar comes online
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Tesla has wiped off the 26,000 miles on the odometer of a Cybertruck in service, scratched the vehicle, and then returned it to the owner like nothing happened.
A Tesla Cybertruck owner in Oregon was quite surprised when he went to pick up his Cybertruck, which was in service to install a new lightbar, fix some panel gaps, and figure out an ABS alert that wouldn’t go away.
According to a thread on the Cybertruck Owners Club, Tesla had wiped the odometer clean on the Foundation Series ‘Cyberbeast’, which had over 26,000 miles on it.
The owner shared a video of the Cybertruck’s odometer going from 0 to 1 mile for the second time:
The odometer on the vehicle was wiped and both the app and service many also showed the same mileage.
The owner shared a screenshot of the app after 15 miles:
He went to the online forum for advice:
Anyone else have their odometer Thanos-snapped after a controller swap? Can Tesla unsnap it or am I forever “True Mileage Unknown”?
Interestingly, Tesla is currently being sued for allegedly messing with the odometers of its vehicles. However, the lawsuit is for accelerating the mileage, not reducing it, like in this case.
It was not the only surprise from this service visit for this Cybertruck owner.
The owner was not satisfied with the lightbar installation, which he claims has a half-inch gap on the passenger side while it is flush on the driver side. He wrote:
It’s basically smiling sideways at everyone.
It’s also unclear why Tesla was messing with the vehicle’s tailgate, but it ended up having a bolt moving around it, causing scratches and Tesla left a bolt unbolted:
At this point, the truck was returned with more problems than it had when it entered service.
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Nissan is on the brink of collapsing. After the Honda deal fell through, it looks like another Japanese automaker is tossing it a lifeline. As Nissan struggles to stay afloat, Toyota is emerging as a potential “backer” in a new tie-up.
Are Toyota and Nissan partnering?
“If we don’t take action now, the situation will only get worse,” Nissan’s President, Ivan Espinosa, said during a press conference on May 13.
Facing falling sales, ballooning debt, and slumping profits, Nissan introduced a new recovery plan last week, “Re:Nissan.” The struggling automaker aims to cut costs by 250 billion yen to return to profitability by FY 2026.
As part of its efforts to turn the business around, Nissan will cut 20,000 jobs by FY2027. It’s also abandoning plans to build a new EV battery facility in Japan. Seven other plants will be closed, including one in Thailand and two in Japan.
After its planned EV merger with Honda fell through in February, rumours surfaced that Nissan was scrambling to find another partner.
According to a new report from Japan’s MainiChi, a Toyota executive recently reached out to Nissan about a potential partnership. The tie-up could involve Toyota acting as Nissan’s “backer” to support it while it restructures.
Nissan and Toyota both unveiled a wave of new electric vehicles set to roll out over the next few years. The upgraded Nissan LEAF EV will arrive in the US and Canada later this year with more range, an NACS port, and a new crossover style. It will be one of ten new Nissan or Infiniti models to arrive by 2027.
In Europe, Nissan will launch the next-gen LEAF later this year, followed by the new Micra EV and Qashqai electric crossover. In 2026, the new Nissan Juke EV will join the lineup.
Meanwhile, Toyota’s upgraded bZ electric SUV (formerly the “bZ4X”) will arrive at US dealerships in the second half of 2025.
In 2026, the smaller C-HR electric SUV and rugged bZ Woodland EV will follow. By the end of the year, Europe will see three new Toyota electric SUVs: the C-HR+, Urban Cruiser, and upgraded bZ4X.
Electrek’s Take
Toyota already has a stake in several Japanese automakers, including Subaru (20%), Mazda (5.1%), Suzuki (4.6%), and Isuzu (5.9%), so backing Nissan wouldn’t come as a shock.
Espinosa said Nissan was open to new partnerships. Nissan’s chief said the company will continue collaborating with others, including Mitsubishi, which will use the upcoming LEAF as the basis for its new EV for North America.
Japanese carmakers have been notoriously slow in shifting to all-electric vehicles, which is now costing them in key overseas markets like Southeast Asia, Central and South America, and others.
Chinese EV leaders, like BYD, are quickly expanding overseas to drive growth this year. Next year, it will launch its first kei car (see the first spy shots), or mini EV, which is already being called “a huge threat” to Japan.
Pooling resources and teaming up may be the best (or only) option at this point. Can Toyota help Nissan turn things around? Or will it be too little, too late? Let us know your thoughts in the comments.
Check back soon for details. This is a developing story. We’ll keep you updated with the latest.
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