In a breakthrough that pushes the boundaries of science fiction into reality, the U.S. military’s Defense Advanced Research Projects Agency (DARPA) has set a new record for wireless energy transmission. As part of its Persistent Optical Wireless Energy Relay (POWER) program, DARPA successfully beamed more than 800 watts of power across a distance of 5.3 miles (8.6 kilometers) using a laser. This achievement not only demonstrates the feasibility of long-distance wireless power but also represents a significant leap forward for both military and civilian energy systems.
The test took place at the U.S. Army’s White Sands Missile Range in New Mexico. During the experiment, a laser was directed through a narrow aperture, reflected off a parabolic mirror, and focused onto a receiver equipped with high-efficiency solar cells. The result was a 30-second energy pulse with an efficiency of approximately 20 percent—impressive given the challenges of atmospheric interference and energy conversion losses over such a long distance. As a playful demonstration of the system’s effectiveness, some of the transmitted power was used to pop popcorn at the receiving end.
Continue reading… “Laser Power Beaming Breakthrough: DARPA Sets New Record in Wireless Energy Transmission”
