A Little History
The word solar is derived from the Roman word Sol (the god of the sun), therefore, the word solar refers to the sun meaning solar power is power from the sun. When we say something is solar powered, we mean that the energy it uses was converted directly from solar...[more]
A Little History
The word solar is derived from the Roman word Sol (the god of the sun), therefore, the word solar refers to the sun meaning solar power is power from the sun. When we say something is solar powered, we mean that the energy it uses was converted directly from solar energy or sunlight energy. The sun provides Earth with 2 major forms of energy, heat and light. Some solar powered systems utilize the heat energy while others transform the light energy into electrical energy (electricity). We can find many uses for both forms of energy. Solar energy is often referred to as an "alternative energy" to fossil fuel energy sources such as oil and coal.
The history of solar energy dates as far BACK as the Greek and Roman empires, during a time when myth and reality were intertwined. To the Greeks, Romans, and the Egyptians of that time, nature and the environment around them was seen as the home of the gods. The Egyptians followed the rising sun for guidance to the tombs of their kings and queens. Both the Greeks and the Egyptians used the sun as part of the mummification process in drying the dead bodies. Both the Egyptians and the Greeks used passive solar power to help them in their daily lives. The Greeks used a technique that incorporated mirrors reflecting the sun light toward Roman ships prepared for war. The Greeks won that war due to the sun resilient power.
Solar energy dates BACK to the times of ancient Egypt when Egyptians built rooms to store the energy from the sun.
Edmond Becquerel, a French physicist, first described the photovoltaic (PV) effect in 1839 when he found that certain materials produced small amounts of electric current when exposed to light. [Hide]