Interesting Solar Energy Facts

All people need to learn some standard facts about solar energy to ensure that they can truly appreciate the full potential and the various fields of applications of this abundant supply of energy. Solar energy is definitely the greenest and the most desirable of all alternative energy resources. Today, the world's annual energy use is approximately 550 exajoules (523 quadrillions BTUs) per year.

Each year, the Earth's atmosphere, oceans, and landmasses receive approximately 3,850,000 exajoules of energy from the sun's rays. Once this is taken into account, anyone should be able to begin to understand precisely why the solar energy industry is enthusiastically working to improve processes for harnessing solar energy. You can also get additional information on solar energy via

Here is a brief overview of the historical facts of solar energy:

– The use of solar energy by humanity is not new; Countless ancient civilizations have used it in one way or another.

– The first solar thermal power plant in the world was built by Frank Shuman in 1913. The plant that was located in Egypt used mirrors shaped like a parabolic cylinder to heat water in boilers to drive a 65 horsepower motor.

The following are some more technical facts about solar energy:

– Solar devices are of two types, active and passive. Active solar energy devices use photovoltaic cells and passive devices have a thermal base.

– Solar photovoltaic systems are currently the most common energy transformation devices, using solar cells in modules to convert light directly into electrical energy.

– The International Energy Agency (IEA) has predicted that by 2060 about 33% of global energy demand will be created through the use of solar energy technologies such as photovoltaic panels, water heaters, and solar power plants.