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地热能是一种清洁能源。在不久的将来,它将会切实走进我们的生活。地球内部蕴藏着巨大的热量,这种天然热能被称为地热能。上世纪70年代初以来,由于能源短缺,地热能作为一种具有广阔开发前景的新能源日益受到关注。全世界的地热储量,据估算为14.5×1023焦耳,相当于4948万亿吨标准煤。如按全世界年消费100亿吨标准煤计算,可以满足人类数十万年的能源需要。
Geothermal energy is a clean energy. In the near future, it will really come into our lives. The Earth’s interior contains a huge amount of heat, which is called geothermal energy. Since the early 1970s, due to the shortage of energy, geothermal energy is attracting more and more attention as a kind of new energy with broad development prospects. Geothermal reserves worldwide, estimated at 14.5 × 1023 joules, equate to 4948 trillion tons of standard coal. If we calculate the annual consumption of 10 billion tons of standard coal in the world, we can meet hundreds of thousands of years of human energy needs.