“Gregory Nemet brings new insights to his definitive study on the solar technology revolution. Solar is cheap, Nemet documents in detail, because it became a global technology—a warning to policy makers who are pushing nationalism without regard for how it will undermine technological innovation and solving problems like climate change.”

“It is rare for a book to aim so explicitly at explaining one of the fundamental transformations of the age; it is rarer still for one to succeed in that aim. Greg Nemet’s “How solar energy became cheap” is one of those rarest of books. And as if that were not enough, it does so clearly and in a way useful not only to those seeking to understand today’s world, but also to those seeking to improve tomorrow’s. If the fight against climate change is to stand a chance, many other technologies need to achieve solar-like growth. This book has important lessons for how that can be done. It is indispensable. ”