How cheap does solar power need to get before it takes over the world - discu.eu

Hacker News

How cheap does solar power need to get before it takes over the world? http://www.vox.com/2016/4/18/11415510/solar-power-costs-innovation 106 comments 18/4/2016

Reddit

How cheap does solar power need to get before it takes over the world? http://www.vox.com/2016/4/18/11415510/solar-power-costs-innovation 45 comments 18/4/2016 technology