The US Air Force wants to beam solar power to Earth from space (video)

Space-based solar power won't be just a sci-fi dream forever, if things go according to the U.S. Air Force's plans. The Air Force Research Laboratory (AFRL) is developing a project called SSPIDR ("Space Solar Power Incremental Demonstrations and Research"), which aims to mature the technology needed to harvest solar energy in space and beam it down for use on Earth. More

(Source: Space.com - Apr 26)