安装在住宅屋顶的太阳能光伏系统则与其相反，它让光线直接照射半导体材料以产生动力。
By contrast, photovoltaic solar power systems, mostly used on home rooftops, let light interact directly with semiconductor materials to generate power.
这些工作机会将出现在工程设计、建设、经营庞大的太阳能系统和风力发电场，还有建造新的光伏产业。
These jobs will be in engineering, constructing and operating huge solar systems and wind farms and manufacturing new photovoltaics.
公用事业很支持这样的系统，也称为太阳热能，比光伏太阳能昂贵。
Utilities often favor such systems, also called solar thermal, over costlier PV.
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