How to harvest solar power? Beam it

How to harvest solar power? Beam it - Talking about beaming power down from satellites, and how it would be possible by 2020 if we acted now. Unfortunately I don't see it happening for a while. The missing piece is the space vehicle. The private efforts are still in their infancy, but I have hopes for them. My gut feeling is it's going to be like fusion for a while, just a few years away every year for a while.