A Silicon Valley start-up called Nanosolar shipped its first solar panels — priced at $1 a watt. That’s the price at which solar energy gets cheaper than coal. Curious that this story is not on every front page.

Still, to commemorate the achievement, Nanosolar CEO Martin Roscheisen (pictured) is reserving the first three commercially-viable panels. One is staying on display at company HQ; one has been donated to San Jose’s Tech Museum of Innovation. And the other is on sale on e-bay.

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