Solar photovoltaic cells based on semiconductor transistor junctions are becoming cheaper, more efficient and more widely relied upon. Mankind can thrive, drinking in the sunshine.
Yet, the solar power technology of today could still become a minor footnote if there is a revolution in Physics or Chemistry :-
“Solar Power Discovery Dims Future of Photovoltaic Cells : Posted by Francis Rey on April 18, 2011 : University of Michigan researchers made a breakthrough discovery on the behavior of light, which could alter solar technology from now on. Professor Stephen Rand, Departments of Electrical Engineering and Computer Science, Physics and Applied Physics, and William Fisher, an Applied Physics doctoral student, found out that light, when traveling [sic] through a nonconductive material, such as glass, at the right intensity can produce magnetic fields 100 million times stronger than previously deemed possible. During these conditions, the magnetic field has enough strength to equal a strong electric effect, producing an “optical battery” that leads to “a new kind of solar cell without semiconductors and without absorption to produce charge separation”, Rand said…”
Mmm, love that solar radiation !