不幸的是，这个早期的工厂遇到了许多可再生能源形态都遇到的问题：韦河的水流不稳定，而水车很快就被蒸汽机取代了。
Unfortunately this early plant experienced the problem common to many forms of renewable energy: the flow in the Wey River was unreliable, and the waterwheel was soon replaced by a steam engine.
因此，电池将在有许多可再生能源资源的平原或缺乏大量水的地区有优势。
The battery, however, would have the advantage of working in places without hills or large amounts of water, where many renewable power resources are located. — Kevin bullis.
在世界许多地方，可再生能源已经是一种主要的能源来源。
In many parts of the world renewable energy is already a principal energy source.
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