>>106331152 (OP)
At current technology levels, transmission is too inefficient (the amount of power reaching the ground loses a lot of what was initially gathered on the satellite), you'd need huge amounts of land to build enough receiving antennas, and the required accuracy is more than we can achieve (the transmission beam wouldn't be able to stay on target and transmit power to the receiving antennas). That's before you even consider the issues inherit to it being a satellite, such as needing to send up astronauts & parts for maintenance, Kessler Syndrome, and you putting your power-generating infrastructure in a place where anyone could shoot it down before you're even aware what's happening.