一些先进的光伏电池甚至可以提供更高的效率，但是由于要把直流电源转化为交流电，转换效率有所降低。
Some cutting-edge photovoltaic cells offer an even higher initial efficiency but fall behind when the DC power they produce is converted to grid-ready alternating current.
但由于镭射光束是有一单一波长的光组成，它的转化就要比拥有多种光波的太阳能转化成能量效率更高。
But because the laser beam is comprised of a single wavelength of light, the conversion to electricity is much more efficient than converting multiple wavelengths of sunlight to energy.
他们希望将来，当非晶态硅光伏电池的光电转化效率提高后，能利用卷到卷式的生产方式进行大规模的硅光伏电池的生产。
They also have hopes that when the efficiency of the amorphous silicon photovoltaic cells improves in the future, it may become possible to mass-produce the si PV cells by using a roll-to-roll method.
他们希望将来，当非晶态硅光伏电池的光电转化效率提高后，能利用卷到卷式的生产方式进行大规模的硅光伏电池的生产。
They also have hopes that when the efficiency of the amorphous silicon photovoltaic cells improves in the future, it may become possible to mass-produce the si PV cells by using a roll-to-roll method.
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