一个世纪后，情况完全不同了：这时，世界上已经有了电力工业，其四分之一的发电量是水力驱动的。
A century later the picture was completely different: by then, the world had an electric industry, and a quarter of its generating capacity was water powered.
单是位于奥克尼和苏格兰大陆之间的彭特兰湾发电站，就可以利用海底涡轮机产生10%的全国发电量。
One site alone, the Pentland Firth, between Orkney and mainland Scotland, could produce 10% of the country's electricity with banks of turbines under the sea.
这个巨大钢件在不久之后将被置于一个大型燃汽涡轮机的中心，该涡轮机发电量足可以满足一个小城市的需要。
This enormous hunk of steel will soon be at the centre of a gas turbine big enough to meet the electricity needs of a small city.
在炎热晴朗的下午，当每个人都赶回家开大空调时，（安装）太阳能的家庭发电量最大。
Solar homes produce the most power on the hot sunny afternoons when everyone rushes home to turn up the air conditioner.
发电量与GDP增长并不同步。
去年风力发电量猛增50%。
英国年度核能发电量：657亿千瓦时。
加拿大年度核能发电量：859亿千瓦时。
美国年度核能发电量：7987亿千瓦时。
Annual U.S. nuclear generation: 798.7 billion KWH (kilowatt-hours).
德国年度核能发电量：1282亿千瓦时。
日本年度核能发电量：2658亿千瓦时。
法国年度核能发电量：3893亿千瓦时。
韩国年度核能发电量：1404亿千瓦时。
世界范围内有20％的总发电量被用于照明。
Worldwide about 20% of all electricity generated is used for lighting.
俄罗斯年度核能发电量：1549亿千瓦时。
该大坝位于遥远的东北部，会大大增加发电量。
目前，核能占俄罗斯发电量的16%。
Nuclear power currently accounts for 16 percent of Russia’s electricity generation.
是世界上发电量第七的电站。
在这一点上，典型的例子便是可再生能源的发电量。
奇怪的是，仅在几年前，南非的发电量还供大于求。
The strange thing is that, until a few years ago, South Africawas producing more electricity than it needed.
风电占新能源发电量比例从四年前的2%跃升为42%。
Wind accounted for 42% of new generating capacity, up from just 2% four years earlier.
太阳能电池的发电量还不到世界总电量的1%。
Solar cells account for less than 1% of the world's electricity production.
大概有一半的中国燃煤发电量现在据说都安装了这种技术。
Roughly half of China's coal-fired generating capacity is now said to have installed this kind of technology.
英国现在天然气发电量已占约40%，而且天然气即将耗尽。
Britain already depends on gas for around 40% of its electricity, and it is running out of the stuff.
相对来讲，它还是有效率的，发电量能效是35%。
It is also relatively efficient, extracting 35% of the energy from a stream.
他们必须平衡发电量和耗电量，或承担电网稳定性方面的风险。
They have to balance the amount of generation and consumption or they risk the grid's stability.
为满足白天用电量而必需的大型煤电厂晚间发电量太大。
The big coal plant they needed to meet the daytime demand made too much power at night.
为满足白天用电量而必需的大型煤电厂晚间发电量太大。
The big coal plant they needed to meet the daytime demand made too much power at night.
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