英語

July 07 [Mon], 2014, 22:16
Unit2:Altuenative Energy

narrator:

The world seems to have an insatiable appetite for oil, electricity, and natural gas, But now, due to energy costs and global warming, scientists are looking to the wind, sun , and agricultural products to power our future.
According to some researchers, wind power is becoming a more viable energy source.

Sandy Butterfield,Researcher:
I think the past perception was that wind energy was nice, but not a real solution.That perception is changing.I see wind energy getting more and more competitive.

Narrator:
At the National Energy Laboratory in Golden, Colorado, discovering alternative power sources that are competitive with fossil fuels has been a mission of scientists here also create solar cells that are far more efficient than those currently available to the public.
They believe that the market for this technology is about to increase significantly.

John Brenner, National Renewable Energy Laboratory
Recent polls have shown that about 75 percent of the population would favor the use of solar power, clean power, and would like to see more of it happening.

Narrator
Solar power has been around for centuries, but while the public says they like the idea of harnessing solar power and incorporating it into their daily lives, the reality for many seems to be that it's something reserved for the future, not now.

Larry Kazmerski,Researcher:
Sometimes, you know, you worry that they that this is only a fringe, but it's not.
Photovoltaic,solar electricity is becoming a technology that is becoming cost-effective for us as consumers in the United States.

Narrator
In many people's opinions, it often takes a crisis for things to change.

Larry Kazmerski:
When your electricity doesn't come on in California, you start looking very, very quickly!

Narrator:
For some, home use of solar power is now becoming more than just an abstract idea.When Jonathon Sawyer's solar electric system was first installed, it was believed to be the largest residential solar system in the United States.This is likely due to the fact that solar power had nou been widely promoted at the time.It's so efficient that he actually sells electricity back to his local power company.

Jonathon Sawyer,Solar Homeowner:
I also feel good because I've always been committed about the environment and doing something, and we have to start as individuals to do things.

Narrator
But individuals can only do so much.Researchers claim that for renewable energy to truly make a difference, it must be used on a large scale.

Pat Woodard,Reporter
This is solar concentrator.The mirrors focus the sun's rays into a narrow beam which turns an engine and provides electricity.Tough to get in the backyard?Sure.But a power company could probably find a place for it.

Narrator:
The United States and other countries often lacked a great sense of urgency to find energy alternatives.For decades, gasoline prices had been kept low with government subsidies so people continued driving large cars―usually alone.Nowadays,gasoline costs are higher, which has enhanced the need to find something else to fuel all those vehicles.

Joun Sheehan,Alternative Fuel Researcher:
What's in there now is material that looks like straw,or・・・It's actually the material that farmers leave sitting on the ground after they go through and they harvest corn.We're trying to get farmers to collect this material so that we can run it through a conversion technology to make new liquid fuels.

Narrator
Since the energy crisis of the 1970s, many farmers have been turning food into fuel by using grains like corn to create ethanol.But recently,some of the emphasis on making fuel has been moving away from the grain itself―to the stalks and stubble left on the ground after the harvest.

John Sheehan
The cellulose that's in here ― that actually is made up of sugars ― is something that they can turn into ethanol in the same way that they're currently taking their corn grain and having it turned into fuel-grade ethanol.






narrator:
世界は、油、電気および天然ガスに対する際限がない食欲があるように見えます。しかし、今、エネルギーのコストと地球温暖化により、科学者は私たちの将来に動力を供給するために風、太陽および農産物に目を向けています。何人かの研究者によれば、風力発電はより実行可能なエネルギー源になっています。

Sandy Butterfield,Researcher:
私は、過去の知覚は、風エネルギーがよかったということだったと思います、しかしない、実在溶液。その知覚は変わっています。私は、風エネルギーがますます競争率が高くなるのを見ます。

narrator:
化石燃料で競争率の高い金色で、コロラド、発見する代替エネルギー源中の国立エネルギー研究所で、ここで科学者の使命だった、さらにそれらより現在はるかに効率的な太陽電池を作成する、公に利用可能。
彼らは、この技術の市場が著しく増加するところであると信じます。
プロフィール
  • プロフィール画像
  • アイコン画像 ニックネーム:砂糖ウサギ
  • アイコン画像 性別:女性
  • アイコン画像 誕生日:1996年2月2日
  • アイコン画像 血液型:B型
  • アイコン画像 現住所:兵庫県
  • アイコン画像 職業:小中高生
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