What is Solar Energy?

by Walter Hull

The Sun is like a giant power station, making solar energy for us each and every day. Without this daily dose of solar power, Earth would not be even close to the same. Literally the difference would be like night and day.

The term solar energy is used to describe electromagnetic radiation released by the sun. This radiation is extremely important to the Earths biosphere, and is the source of our existence. It is the catalyst for life as we know it on our planet.

Electromagnetic radiation is composed of tiny invisible energy waves, all traveling at the speed of light (3×108 meters per second). Forms of electromagnetic radiation include X-rays, gamma waves, radio waves, microwaves, infrared waves, ultra-violet waves, and the visible light spectrum. The only difference between the waves is their frequency of resonance, and they are characterized based on this.

Solar energy is the primary element for Photosynthesis, the method by which plants make energy for growth. Plants in term provide us with food, wood, medicines, and more.

Solar energy is also the primary element that forms weather patterns. The Sun warms the surface of the earth, whereby wind patterns develop. Solar energy is absorbed in the oceans, and this helps form the currents. Evaporation caused by solar energy is what fundamentally leads to clouds and thunderstorms.

And so it is no surprise that solar energy is at the root of almost all physical processes that occur on Earth. Without this valuable resource life as we know it would not exist.

Imagine if the Sun suddenly burned out, which scientists predict will happen someday. It is a reminder of the delicate balance to our existence, that Mother Nature will always hold the trump card to human prosperity. We should offer thanks for each and every day that we are blessed with the Sun.

Thinking about it like that, we should probably all wake in the Morning and give thanks to the Sun. It is the single item in our existence we take most for granted. What if the Sun disappeared for one day? Just think of the mayhem and chaos this would create. And think of all the solar energy that would be lost all over the world.

With the recent advances in materials and industry, we now find ourselves with some new inventions for working with solar energy. It is now possible to make electricity directly from sunlight in a photovoltaic device. We can harness solar energy in absorption and concentrating collectors and store the heat.

The time has come now to discuss solar energy in different terms. Mankind has become clever these past few generations, and developed new methods to harness this energy. We now have ways to convert solar energy directly into electricity. And weve developed several new inventions for absorbing solar energy and making high temperature heat.

How practical is current technology for providing power to our homes? How much money will it cost, and how much will we save in the long run? What kind of new solar energy technologies are in development? We started out asking these same questions ourselves, and we are here as professionals from the Energy industry to present a few honest answers straight from the energy specialists.

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