英语PPT：风电.pptVIP

GROUP TWO Traditional energy Nowadays, more than three-quarters of the energy used in developed countries comes from oil, gas and coal. Reserves of oil and natural gas resources relatively insufficient。 China has abundant renewable energy resources. China‘s hydropower resources, make upof 12% of hydropower resources in the world, first in the world. What do you know about new energy? Wind power Solar power Tidal power Advantage disadvantage THE FUTURE Wind energy Situation In recent years, generally speaking, the use of wind to generate electricity has reduced the cost of many, even without other external costs, many suitable locations in the cost of wind power generation has been lower than the internal combustion engine fuel. Since 2004, wind power has become the cheapest in the new energy of all . In 2005, the cost of wind energy has been reduced to one-fifth of the 1990s, and with the use of high-wattage generators will continue downward trend. Wind energy Wind power is the conversion of windenergy into a useful form of energy, such as using wind turnbines to make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage, or sails to propel ships. 高空风能发电High-altitude wind power? Wind turbine compose of the head, swivel, rear wing and the blade?风力发电机由机头、转体、尾翼、叶片组成。 Power Principles Air flow windmill spinning action through the shaft, the rotor (driven by a fan to force air component) of the rotary power transmitted to the generator to produce electricity ? development of economic competitiveness and potential? land and ecological damage on the lower. ? air pollution and less carbon emissions and other environmental costs are low. ? wind power can be distributed generation, power generation facilities is not too large concentration of risk ? Wind power generation in the ecological problem is likely to interfere with birds. The current