United States ranked third, investment about 35 billion U.S. dollars, followed by Spain and Japan, respectively 2 billion U.S. dollars, and finally India. German energy expert Sven Tai Sike said in Beijing: “In the wind, the European Union last year alone, the additional capacity to 700 million kilowatts. Among them, the development of Germany and Spain ranked first, then wind energy capacity were added 180 million kilowatts, but the world’s largest wind energy market is the United States, newly installed capacity reached 2.4 million kilowatts. “In recent years, China’s rapidly growing wind power industry in 2005, the original 800,000 kilowatts on the basis of an increase of 500 000 kW. With the rapid economic growth, China has become the world’s second largest after the United States of greenhouse gas emissions. Recently, the international demands for China to control emissions of voices getting louder and louder. The Chinese government has formulated a unit of GDP by 2010 goal of 20 reduction in energy consumption and renewable energy, has developed a new goal to renewable energy by 2020 the proportion of energy in a onetime increase to 16 .

“If the current energy policy is essentially the same, then by 2050, global carbon dioxide emissions will be twice current levels; and if the adoption of ‘energy revolution’ approach, improve energy efficiency and use of renewable energy, then to 2050, global carbon dioxide emissions would be only half the current level. “April 25, by the European Renewable Energy Commission, and written more than a year of” energy revolution “report released in China” for the to address climate change the use of clean energy “to become the subject of the report. According to the report, from 2004 to 2005, the world invest in new renewable energy funds rose from 30 billion U.S. dollars to 380 billion. Among them, most of the increase in the amount of solar energy and wind power from largescale investment. Investment in the top six countries were Germany, China, the United States, Spain, Japan and India. Among them, the amount of investment in China and Germany are from 6 billion U.S. dollars to 7 billion U.S. dollars, ranking first in all countries. Germany will mainly invest in wind and solar resources, while China mainly for small hydropower and solar water heaters.

sun computer to the condenser. The latter thermal efficiency high, will be placed on the focus of the engine technology development.Except for the sun heat generation technology, human society is also present in the solar technology development vigorously. The photon energy solar radiation, photons with semiconductor materials, solar radiation and convert electricity, this phenomenon is called “pv effect”. The sun is using the pool of electricity pv effect a photoelectric device. Solar battery and ordinary chemical battery, the battery (dry), is a completely different physical properties. Although sunshine illuminate a solar cell can power, but it is different with average generators, it is spinning and wear, can quietly power.

Solar energy conversion for two basic ways: one is to put solar radiation, thermal energy is converted to electricity “, “sun hot, Another is by photoelectric devices will sunlight directly convert electricity generation “, namely “the sunlight.The sun, the world to generate the most advanced technology of Israel. From California’s technology, Brazil, India, Morocco is planning to build the world bank, the equipment has started to fund development in the country. The incident to the surface of the earth is widely dispersed and solar energy, to collect and make full play of thermal efficiency, we must adopt a kind of a kind of the sun can launch and together, the system into heat. One way is to take a launch and focus the sun can be converted into heat concentrated heating and steam turbine, steam to transform into electricity. Also can use parabolic condenser, use solar heat will follow the