On a blustery November day, a Cessna turboprop flew over Pennsylvania at 5,000 meters, in crosswinds of up to 70 knots—nearly as fast as the little plane was flying. But the bumpy conditions didn’t thwart its mission: to wirelessly beam power down to receivers on the ground as it flew by.
The test flight marked the first time power has been beamed from a moving aircraft. It was conducted by the Ashburn, Virginia-based startup Overview Energy, which emerged from stealth mode in December by announcing…
