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Let It Shine: Solar Design in Ancient Greece

12/11/2013 4:32:00 PM

Tags: passive solar, solar power, Let It Shine: The 6, 000-Year Story of Solar Energy, Greece, John Perlin

The following post summarizes the author’s Chapter 2 of Let It Shine: The 6,000-Year Story of Solar Energy.

Ancient Solar City In Greece

Never in the history of the world has there been such a high-ranking member of society to advocate passive solar architecture than Socrates. He felt so strongly for building with the sun in mind that he even set up a class to teach his acolytes how the finer points of putting up a passive solar house.

Socrates began the course by asking, “When someone wishes to build the proper house, must he make it as pleasant to live in and as useful as it can be? And is it not pleasant to have the house cool in summer and warm in winter?” the sage continued. “Now in houses with a southern orientation, the sun’s rays penetrate into the porticoes [covered porches], but in summer the path of the sun is right over our heads and above the roof, so we have shade…” Therefore, Socrates concluded, it is in such a designed house “that the owner can find a pleasant retreat in all seasons…which makes the house at once the most useful and most beautiful.”

Archaeology shows that people throughout the Greek world heeded Socrates’ advice. The attempts at first were modest: the remodeling of two houses in downtown Athens where workmen changed the arrangement of rooms so that the most important ones would face onto a south-facing courtyard. As word of the virtues of the new architecture spread, rural Athenians began to adopt solar architecture as well. Then the idea caught on with urban planners.

The new city of Olynthus in northern Greece became the first solar city of ancient Greece. It had its streets so designed that every house could face south. After Olynthus, other cities followed, as far away as central Bulgaria.  Even when the terrain made solar planning difficult, builders found a way. The great playwright Aeschylus suggested that a south-facing orientation was a normal characteristic of Greek houses. It was a sign of a “modern” choice, he declared, as opposed to houses built by primitives and barbarians, who, in the words of Aeschylus, “though they had eyes to see, they saw to no avail; they had ears, but understood not. But like shapes in dreams, throughout their time, without purpose wrought all things in confusion. They lacked knowledge of houses turned to face the sun, dwelling like swarming ants in sunless cavities.”

Photo: Priene, an ancient Greek solar city built on the southern slope of Mount Mycale.

Read John’s previous post, Let It Shine: Solar Architecture in Ancient China.

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12/15/2013 6:20:59 AM
Funny how what was old is now new again. We built and live in an earth-bermed passive solar house and love it.

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