天涯招考网 >英语 > 雅思英语 > [雅思是什么]雅思样题——Academic Reading

[雅思是什么]雅思样题——Academic Reading

更新时间:2017-09-11 来源:雅思英语

【www.wzktys.com--雅思英语】

Academic Reading

Wind Power in the US

Prompted by the oil crises of the 1970s, a wind-power industry flourished briefly in the United States. But then world oil prices dropped, and funding for research into renewable energy was cut. By the mid 1980s US interest in wind energy as a large-scale source of energy had almost disappeared. The development of wind power at this time suffered not only from badly designed equipment, but also from poor long-term planning, economic projections that were too optimistic and the difficulty of finding suitable locations for the wind turbines.

Only now are technological advances beginning to offer hope that wind power will come to be accepted as a reliable and important source of electricity. There have been significant successes in California, in particular, where wind farms now have a capacity of 1500 megawatts, comparable to a large nuclear or fossil-fuelled power station, and produce 1.5 per cent of the state’s electricity.

Nevertheless, in the US, the image of wind power is still distorted by early failures. One of the most persistent criticisms is that wind power is not a significant energy resource. Researchers at the Battelle Northwest Laboratory, however, estimate that today wind turbine technology could supply 20 per cent of the electrical power the country needs. As a local resource, wind power has even greater potential. Minnesota’s energy commission calculates that a wind farm on one of the state’s south western ridges could supply almost all that state’s electricity. North Dakota alone has enough sites suitable for wind farms to supply more than a third of all electricity consumed in the continental US.

 

本新闻共4页,当前在第1页  1  2  3  4  

本文来源:https://www.wzktys.com/yingyu/18301/

为您推荐

京ICP备18066668号

CopyRight 1996-2018 https://www.wzktys.com Inc All Rights Reserved. 天涯招考网 版权所有