In areas where the wind dies down, backup electricity from a utility company or from an energy storage system becomes necessary.
在风能不稳定的一些地区，需要供电事业公司或者能量储存系统来提供备用电能。
Wind turbines and solar cells will generate electricity and a rainwater collection system will harvest and purify rain.
风力发电机和太阳能电池可以产生电能，雨水收集系统能够收集并净化雨水。
Establishing a national renewable electricity standard will help to unify the fragmented U.S. grid system — an important step in the wider adoption of using more wind and solar for energy generation.
建立一个国家新兴能源发电统一标准将有助于统一美国零散的电网系统，这是广泛采用风能和太阳能发电重要的一步。
应用推荐