In his interview with Vice, Mankins said that he's insisting on low-intensity microwave transmitters. This will mean that the receivers on the Earth will be large - approximately 6-8 kilometers in diameters and located 5-10 meters above the ground. There are technological challenges because converting solar energy into electricity involves larger temperatures. Mankin proposed development of solar cells that can operate at sufficiently larger temperatures and also improve the overall conversion energy. Though the project looks interesting, it may take a longer time to realise given the astronomical costs involved. Mankin says that his team is geared up for the challenge and if all things go as planned, the SPS-ALPHA would be ready to for launch latest by 2025. We're curious to know what our engineer fellows think about this project? Do you think this 'IS' the next big thing in the human's quest for solving the energy problems of the mankind?
Source : NASA