“The essentials of a phenomenom are best understood if one tries to explore their rise from the very beginnings” (Aristotle)

John Perlin* provides a historical summary of the 3 major solar energy subjects – photovoltaics, solar thermal, and passive solar architecture. The focus here is on how we have learned to capture sunlight and use it to make electricity, heat water and heat our homes.

From Space to EarthA Golden Thread*John Perlin is the author of “From Space to Earth – The Story of Solar Electricity”, “A Golden Thread – 2500 Years of Solar Architecture and Technology”[with Ken Butti], and “A Forest Journey: The Role of Wood in the Development of Civilization”.