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News Tag: NTT

NTT and Mitsubishi Heavy Industries Demonstrated 152 W Laser Power Delivery Over 1 km in Japan

Nikola Tesla imagined a world where power could travel without wires, and in early 2026 engineers in Japan published a rare thing in the wireless-power world: field-test numbers you can sanity-check. In a January 2026 technical write-up, NTT described a joint demonstration with Mitsubishi Heavy Industries at Nanki-Shirahama Airport in Wakayama Prefecture, where a laser system delivered 152 watts of usable electricity to a receiver 1 kilometer away. The experiment reportedly ran continuously for 30 minutes and achieved about 15% efficiency under real atmospheric conditions — meaning this wasn’t a lab-bench trick, but power delivered through open air. It’s not Wardenclyffe-scale energy, but it’s a measurable step toward the same core question Tesla chased: how far can useful electricity be sent without a cable?

NTT and Mitsubishi Heavy Industries Beamed 152 Watts Over 1 km — A Real-World Nod to Tesla’s Wireless Power Dream

Nikola Tesla spent his life chasing the idea that energy could be sent through the air — and in 2026, engineers are finally publishing hard, testable numbers that echo that ambition. In a January 2026 write-up, NTT described a wireless power demonstration with Mitsubishi Heavy Industries at Nanki-Shirahama Airport in Wakayama Prefecture, Japan: the team delivered 152 watts of usable electricity to a receiver 1 kilometer away. The system reportedly achieved about 15% efficiency (a “world record level” for this kind of real-atmosphere test) and ran continuously for 30 minutes. It’s not a global grid — but it’s a measurable, modern step toward safely sending useful power without cables.