The Japan Aerospace Exploration Agency, or shortly JAXA, is Japan’s national aerospace agency and its purpose is to develop and launch satellites into orbit. Their latest project consists of developing space solar systems which send power and energy to the earth.
On February 20th they will begin testing the microwave power transmission which is destined to beam to earth, through a 2.4-meter rectifying antenna, enough energy to power a household heater.
JAXA plans to build an entire space system of solar-power collectors in order to ensure the energy enough electricity to power 500,000 homes.
Source