Facts About Solar Energy
There are four major styles of solar energy: direct, indirect, active and passive.
Direct solar energy systems convert the thermal energy once, while indirect systems convert the energy multiple times. Active solar means there are mechanical and electrical parts. Passive systems do not use any mechanical parts to convert the energy to electricity.
So the question come up, "how does solar energy really work?"
Basically solar energy is simply capturing the sun's energy. It's actually very easy to do so. The problem is how to store that energy. There are many methods for capturing solar energy but the most common to date are photvoltaic cells. These are more commonly known as solar cells or solar cell semiconductors.
Heat from the sun is absorbed by the silicon cells and the energy is stored and converted for use by the semiconductor inside the cells.
The biggest problem so far with solar energy has been the initial cost. The silicon is expensive. You have to weight the cost benefit. For instance, if you are in your home a long time then the 7 years or so to make back the difference in the cost you paid for solar home lits versus what you would have paid the utility company will pay off in the long run. Luckily the price of these solar panels have been coming down in price as production increases due to the high cost of petroleum.
Yes, there is a large initial investment, but by eliminating your electric bill for the rest of your life, there is a good chance you'll recoup the loss. Many people use solar energy to heat their water (tap, showers, swimming pools, etc.) without powering their entire home. This is much cheaper, but it can still have a positive impact on utility bills and the environment.
There have been many other smaller uses, too. There are practically an infinite number of possibilities for small devices being charged with solar energy and eliminating the need for charging the battery every night for its use the next day.
As solar cell production costs decrease, more companies will be able to produce solar-powered devices and accessories the public can afford. Solar energy's future is now. Home solar energy kits are becoming affordable.