China originally aimed to have 30gw of installed renewable capacity by 2020, but new targets are being set because wind alone will soon exceed that goal.
中国原本目标在2020年之前，达到30gw的再生能源装置容量，不过最近中国开始设立新目标，因为光风力发电就能轻易超越原先的目标。
The NEA said installed renewable power capacity including wind, hydro, solar and nuclear power would contribute to about half of new electricity generation by 2020.
国家能源局称安装的可再生能源容量包括风能，太阳能，水电以及核能，到2020年将贡献大约一半的新发电量。
Recently installed systems tend to have excess capacity, and since the immediate marginal costs of using them seem to be negligible, management often encourages new uses.
最近安装的系统倾向于有超量能力的趋势，而由于使用它们的即时边际成本似乎可以忽略不计，管理层常鼓励新的使用。
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