Solar is not just getting cheaper; it is sprinting down a learning curve that has held for half a century, with module prices falling about ten-thousand-fold as cumulative capacity has exploded.
That is my first message: a technology whose cost keeps dropping predictably as deployment grows, and where every new gigawatt makes the next gigawatt cheaper again.
And beating the trend line.
The second message is about speed.
When we line up all major power sources from the year each first exceeded a bigly amount of energy – 100 TWh – solar and wind are now racing ahead faster than coal, gas, hydro or nuclear ever did – nuclear did move fast for a while there, but then it stopped. Wind hasn’t.
