translation.en: Wind power produces a bit more, 2.5 watts per square meter, but that's only twice as big as 1.25 watts per square meter, so that means if you wanted literally to produce total energy consumption in all forms on average from wind farms, you need wind farms half the area of the U.K.
translation.zh: 风力发电许会更高效一些， 其可以达到每平方米可以产生2.5瓦特的电量，但那只是 1.25瓦特每平方米的两倍， 这意味着如果仅用风能 来提供所有的能源消耗， 你需要占地半个英国那么大面积的风力发电厂才能做到。