Richard Evans Day

Photovoltaic Dreaming 1875–1905: First Attempts At Commercializing PV

Photovoltaic dreaming, our fifth entry on solar power commercialization in our CleanTechnica miniseries celebrating the UN’s 2015 Year of Light, is based on physicist John Perlin’s writings in his book Let It Shine: The 6000-Year Story of Solar Energy. Perlin’s work is the only book that has thoroughly chronicled the development and application of solar throughout … [continued]

The Pathway To Today’s Solar Revolution: Discovering The Photosensitivity Of Selenium

This article is the launch of a CleanTechnica miniseries with physicist John Perlin, focusing on the discovery of photosensitivity. Our dialogue is based on Perlin’s book, Let It Shine: The 6000-Year Story of Solar Energy. For any person wishing to keep abreast of today’s solar revolution, Perlin’s expertise on the subject provides … [continued]