“Solar at grid parity in most of the world within 2 years” http://www.kurzweilai.net/solar-at-grid-parity-in-most-of-the-world-within-2-years
“Solar at grid parity in most of the world within 2 years” http://www.kurzweilai.net/solar-at-grid-parity-in-most-of-the-world-within-2-years