按照目前的技术,太阳发电每瓦40美分,这样的成本,向完全民用推广,还需要很长时间从根本上说,现在所使用的大部分能源,都来自太阳。太阳能让动物和植物生长,最后变成煤和石油等化石燃料。核能、地热、潮汐能与太阳能关系不大,但它们在现代能源消耗中的比例也不算高。 According to the current technology, solar power generates electricity at 40 cents per watt. It is still a long time for such a cost to be promoted to full civilian use. Fundamentally, most of the energy used today comes from the sun. Solar energy allows the growth of animals and plants, eventually becoming fossil fuels such as coal and oil. Nuclear energy, geothermal energy, and tidal energy have little to do with solar energy, but their proportion in modern energy consumption is not too high.