1、光电转换效率。单晶硅组件光电转换率较高，目前市场上的一线单晶硅光伏组件的光电转换效率在18%左右，在2017年，单晶PERC太阳能电池达到世界转换效率23.45％，实验室数据可达26%。

1. Photoelectric conversion efficiency. The photoelectric conversion rate of monocrystalline silicon modules is relatively high. At present, the photoelectric conversion efficiency of first-line monocrystalline silicon photovoltaic modules on the market is about 18%. In 2017, the conversion efficiency of monocrystalline perc solar cells reached 23.45% in the world, and the laboratory data reached 26%.

2、衰减率。单晶硅组件和多晶硅组件在同样的环境中使用同等时间之后，单晶硅组件的衰减率要地于多晶硅组件。这也就以为着，在使用10-20年后，单晶硅组件的光电转换效率要高于多晶硅组件。

2. Decay rate. After using monocrystalline silicon module and polycrystalline silicon module in the same environment for the same time, the decay rate of monocrystalline silicon module is higher than that of polycrystalline silicon module. This means that after 10-20 years of use, the photoelectric conversion efficiency of monocrystalline silicon module is higher than that of polycrystalline silicon module.

二、多晶硅光伏电站

2、 Polysilicon photovoltaic power station

2、性价比。关于单晶硅组件和多晶硅组件的性价比，仁者见仁智者见智。

2. Cost performance. Based on the above comparison of photoelectric conversion efficiency, decay rate, price and other factors, different people have different opinions on the cost performance of monocrystalline silicon module and polycrystalline silicon module.

3.、具体情况具体讨论。

3. Discuss the specific situation.

对于大型光伏电站来说，在同等光照条件下，多晶硅组件性价比更高。

For large photovoltaic power plants, under the same lighting conditions, the cost performance of polysilicon modules is higher.

但是，若此地区光照条件充足，则选择单晶硅组件发电量更高，收益更高。

However, if the light conditions in this area are sufficient, the single crystal silicon module will generate more power and higher income.

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