High-placed utility executives have told me solar panels can’t get any cheaper.
Here’s why economies of scale will continue to drive solar prices down,
just like for Henry Ford’s Model T.
There’s no excuse for new pipelines or nukes.
Let the sun rise!

tl;dr: If current rates of improvement hold, solar will be
incredibly cheap by the time it’s a substantial fraction of the
world’s electricity supply.

Ramez Naam, on his blog, 10 August 2015,

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