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.