
Not-for-profit energy cooperative Nice River Power, which serves 1.7 million folks throughout Minnesota and Wisconsin, has partnered with Prisma Photonics to roll out real-time monitoring know-how throughout 90 miles of transmission traces in northern Minnesota. Prisma Photonics will present its PrismaPower system to trace threats like wildfires, ice, wind, and bodily injury to the Minnesota grid.
The multi-year venture will set up PrismaCircuit and PrismaClimate throughout 5 key transmission traces related to 4 substations utilizing current fiber optic traces. The aim is to strengthen the grid forward of Minnesota’s subsequent winter season. These traces, unfold throughout central and northern Minnesota, will now be beneath fixed surveillance with out the necessity for conventional sensors.
“We’re leveraging revolutionary new applied sciences that maximize our current infrastructure investments,” stated Priti Patel, vp and chief transmission officer at Nice River Power. “This answer permits us to make the most of our present fiber optic community in a brand new technique to enhance resilience in areas of northern and central Minnesota.”
As an alternative of putting in bodily sensors on energy traces, Prisma Photonics’ know-how faucets into fiber optic cables already in place, reworking them into a complicated sensing system. Right here’s how the corporate’s works:
Prisma Photonics Fiber Sensing works by connecting an optical interrogator unit into an ordinary single-mode optical fiber. It’s one fiber, a part of a cable laid alongside the monitored asset, in all probability for communications functions. The Interrogator transmits optical pulses that propagate down the fiber. A minute fraction of the sunshine is mirrored from every level alongside the fiber. The Interrogator measures the mirrored gentle to find out the pressure, temperature, strain, and different portions over lots of of kilometers of fiber with sub-meter decision. The fiber is became a steady acoustic sensor – as if there have been tens of hundreds of microphones spanning lots of of kilometers.
Prisma Photonics says this implies sooner deployment, no service interruptions, and no want for specialised crews in all climate circumstances.
Dr. Eran Inbar, CEO of Prisma Photonics, stated, “Our partnership with Nice River Power demonstrates how utilities can extract extra worth from their current infrastructure to boost grid resilience whereas avoiding conventional sensor-based options’ complexity and upkeep necessities.”

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