Solar energy

All development is take the environmental protection as the premises, in 21st century, so clean energy become more and more importation. Clean energy not only environmental protection but also that is renewable energy, we can use it again and again, such as wind, water, sunshine. In the renewable energy, solar energy was the most general used in our life. Of cause using solar energy have advantage and disadvantage.

Firstly, as advantage, the solar energy is the most importation basic energy in all kind of renewable energy and it also is the richest energy that we can use. We know all energy from sun in the world, and according to the present sun’s wear rate, solar energy can maintain 6*1010 the year. (Renewable energy. Baidu.) That means solar energy is inexhaustible. Now, we usually use solar energy replacement original chemistry material to make solar heating system, solar battery, etc.

Next, as disadvantage, the solar energy has unstable and high cost. The natural condition often limits solar energy to use, for example, if wind or rain we can’t use it. And even though we general used solar energy in our life, but the cost of solar energy using machine is expensive and some machine the efficiency is low. So the solar energy is not main energy.

Now many countries spending a lot of money to research solar energy and applies it in the industry, and clean energy slowly replaced dirty energy.

you can go to this web site to know more information about clean energy
www.energyenvironmentforum.com