“In what it describes as the most significant demonstration of its kind in half a century, the US Naval Research Laboratory (NRL) beamed 1.6 kW of power over a kilometer (3,280 ft) using a microwave beam at the US Army Research Field in Maryland.”
1.6 kW is enough to run a couple of space heaters, and the beam lost 40 percent of it on the way. The pitch is solar power stations in orbit. The near-term customer is the Pentagon, which wants to power troops without trucking fuel through ambush country. That is the use case that gets funded.