地热发电前景好(有声)
作者：englishilove
来源：沪江论坛
2010-06-09 11:49
Jefferson Tester: ‘Geothermal energy is alive and well.’
EarthSky
Geothermal energy is a way to generate electricity from heat stored deep in the Earth. If you’ve ever visited a hot spring, you’ve felt Earth’s inner heat firsthand. We don’t hear much about geothermal energy, but it’s already being used around the world.
地热能是地底深处储藏的热能 ，可用于发电。如果你曾参观过温泉，你就会切身体会到地球深处的热能。我们不常听说地热能，但它已在全球广泛使用。
Jefferson Tester: It’s not going to take enormous, new discoveries, new science or technologies to make it work.
杰弗逊•特斯德：实现地热能发电并不需要使用很多新发现，新科学或新技术。
That’s chemical engineer Jefferson Tester of Cornell University. He has led scientific assessments on geothermal for the U.S. Department of Energy and others.
您听到的是对康奈尔大学化学工程师杰弗逊•特斯德的采访。他帮组美国能源部及其他组织对地热能作了科学的评估。
Jefferson Tester: Geothermal energy is certainly alive and well and being used around the world in three different ways – to generate electricity, to provide heating for buildings, and using natural sources of steam and hot water, for geothermal heat pumps.
杰弗逊•特斯德：地热能还是很丰富的，在世界上主要应用于三个方面——发电、楼宇供暖、用天然蒸汽和热水为地热泵提供动力。
Tester said there are a limited number of natural geothermal systems in relatively isolated spots across the globe.
特斯德说全球各地分布的地热系统数目有限。
Jefferson Tester: The United States is actually the leading producer of geothermal-produced electricity or based-electricity around the world, with about 3,500 megawatts of capacity. There are many new power plants and geothermal heat pump systems under construction right now.
杰弗逊•特斯德：美国实际是世界地热能发电的领先者，具备3,500兆瓦的发电能力。很多新发电厂和地热泵系统正处在建设中。
As of 2010, less than one percent of electricity in the U.S. is from geothermal sources. But Tester said the U.S. has large geothermal reserves, mainly in the west that could supply 10 percent of its total electricity by 2050.
特斯德说，自2010年起，地热能发电量占全国总发电量的不到1%，但是，美国地热储备量大，主要集中在西部地区，到2050年地热发电的电量就可能会占全国总电量的10%。
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