Nowadays, the electricity exerts a significant influence on individual's life, not only because the high demand of production in each country, also the diversity of peoples' lives. Therefore, the raw materials, such as oil, coal and gas, are highly demanded in the world. Known to all, however, these materials which are mentioned above are non-renewable resources, and their reserves will certainly, continuously and greatly decrease, so, exactly it is vital to reverse the irrational use of non-renewable resources. In recent years, in virtue of the greatly decreasing of non-renewable resources, scientists and researchers are accelerating the development of the Green Energy, such as wind, wave and solar energy, strenuously making the new green energy more acceptable and popular among individuals, countries and the world. "For example, Renewable energy is seen by the UK government as one vital component of a climate change strategy, for which it has set a notional target of 10% of electricity production (Department of Trade and Industry, 1999)."( Citizen versus consumer: challenges in the UK green power market S.L. Batley, D. Colbourne, P.D. Fleming, P. Urwin). But, there are some critical problems which people cannot ignore, such as the green energies' exploration, technology, exploitation and prices. Consequently, how to explore and use the green energy, instead of the non-renewable energy, to the most degree and enable the green energy to be affordable to the public have become a tough and challenging task not only for scientists and managers, also for human beings.

In the past, amounts of emphasis on the climate change events were mainly based on several objective factors, such as the crustal movement, planets and stars motion, and gas concentration in the air. But now, some human factors significantly influencing the environment should be put on the table. "The