-
(单词翻译:双击或拖选)
By Mike O'Sullivan
Los Angeles
01 March 2006
Windmills in California
Windmills are sprouting1 across the United States, as Americans search for non-polluting alternative energy sources. The West Coast state of California is the U.S. leader in wind power.
-----------------------------------------
Wind turbines dot hillsides in several parts of the state, including Tehachapi, in the desert northeast of Los Angeles.
Lee Brace2 of G.E. Energy stands beneath a slow-spinning propeller3, attached to a wind turbine that his company is testing. "The larger the blade, it seems the slower they move. You're looking at 58 meter blades, and there are three of them on top of the tower there, about 240 feet up in the air," he said.
The tower is 75 meters tall, and atop it is a one-point-five megawatt turbine, which provides enough power for 500 houses.
More than 4,000 wind turbines dot these desert hillsides. Some date from the 1980s and are just a fraction of the size and output of this model.
Michael Burns
Down the road, Oak Creek4 Energy Systems operates 200 turbines, including another massive one-point-five megawatt test model. Michael Burns sits in front of a bank of computer monitors, which use color codes to track the temperature and status of the windmills. "The green ones are on line. If it's white, it means the turbine is off. Everything is all right on it but in the United States, but 16 other states, from North Dakota to Kansas, have greater potential, according to the American Wind Energy Association. Texas now ranks number two in wind production for the country.
Linda White
But the association says the source remains5 largely untapped, providing less than one percent of U.S. electrical generation. Denmark, by contrast, gets 20 percent of its power from the wind. Linda White of the Kern Wind Energy Association, based in Tehachapi, says alternative energy sources can supplement dwindling6 supplies of coal, oil and natural gas, which provide most U.S. electrical generation. "As long as the wind is there, the water is there or the sun is there, we will have those renewable resources. And I think if we were to have much more of a mix or put more sustainable or alternative energy sources within our current mix, it will extend the life of those finite fuels," she said.
Ed Duggan
Government incentives7 in places like California are promoting the use of renewable energy sources. Ed Duggan of Oak Creek Energy Systems says, with better planning, utility companies can make more efficient use of available energy. "Maybe on a windy day, you hold the water behind the dam and save that energy for the days that the wind doesn't blow. Or maybe you keep your gas-fired generator8 turned off on a windy day, but you run it on a hot day when all the air conditioners are on in Los Angeles."
The industry still has work to convince Americans of the virtues9 of wind power. Some residents complain the large towers are unsightly, and environmentalists have criticized the windmills as dangerous to birds. This is more of a problem at another site in Northern California, which is on a migration10 route. In response to complaints, owners have agreed to a temporary shutdown of some of that area's wind turbines during this year's winter migration.
1 sprouting | |
v.发芽( sprout的现在分词 );抽芽;出现;(使)涌现出 | |
参考例句: |
|
|
2 brace | |
n. 支柱,曲柄,大括号; v. 绷紧,顶住,(为困难或坏事)做准备 | |
参考例句: |
|
|
3 propeller | |
n.螺旋桨,推进器 | |
参考例句: |
|
|
4 creek | |
n.小溪,小河,小湾 | |
参考例句: |
|
|
5 remains | |
n.剩余物,残留物;遗体,遗迹 | |
参考例句: |
|
|
6 dwindling | |
adj.逐渐减少的v.逐渐变少或变小( dwindle的现在分词 ) | |
参考例句: |
|
|
7 incentives | |
激励某人做某事的事物( incentive的名词复数 ); 刺激; 诱因; 动机 | |
参考例句: |
|
|
8 generator | |
n.发电机,发生器 | |
参考例句: |
|
|
9 virtues | |
美德( virtue的名词复数 ); 德行; 优点; 长处 | |
参考例句: |
|
|
10 migration | |
n.迁移,移居,(鸟类等的)迁徙 | |
参考例句: |
|
|