Quote: (05-20-2017 12:00 AM)PharaohRa Wrote:
When solar panels are 50% efficient in converting solar energy to power, I will then pay attention.
That's not going to happen with solar cells.
Rectennas might get there but that research has been stalled for years. There was some work being done on nanotube rectennas but I haven't read about any breakthroughs. Carbon nanotubes were a huge buzzword a few years ago and the corresponding studies might have just been a play for research money.