However, the most quickly growing and most vibrant solar sector has been photovoltaics, where electricity is generated directly by shining sunlight onto solar cells.
但是，增长最迅速且最有活力的太阳能领域是太阳能光电池，其电能是直接利用太阳光照射到太阳能电池上而产生出来的。
Shining sunlight onto silicon is the most direct way of turning it into electricity (the light knocks electrons free from the silicon atoms), but it is also the most expensive.
阳光在硅上照射，能最直接的转化成电（光碰触电子使其脱离硅原子），不过这也是最贵的方法。
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