As the power efficiency of traditional silicon-based solar cell is low and also it costs high, concentrator photovoltaic systems with high conversion efficiency will become the main direction.

由于传统的硅基太阳能电池发电效率低、成本高，因此高转换效率的聚光太阳能系统将成为研究太阳能发电的主要方向。

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The data used in FIGURE 1 and FIGURE 2 is based on the ten-digit Harmonized Tariff Schedule (HTS), the most precise measure of solar cell and module imports available (specifically 8541.40.6020&6030).

图1和图2使用的数据基于10位数的海关关税明细表，市面上可获得的最精确太阳能电池和模块(8541.40.6020&6030)测量数据。

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This design is much cheaper than traditional solar plants where expensive silicon cell-based panels are used to convert light to electricity directly.

该设计比传统以硅电池技术为主的太阳能电板便宜得多，后者是将阳光直接转化为电力。

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These three U.S.-based solar cell makers went out of business because they could not lower their costs enough to make a profit when faced with competition from Chinese companies.

FORBES: When Government Fails at Industry Analysis: 3 Solar Cell Bankruptcies

That is not great compared with the 20% and more achieved by a silicon-based solar cell, the 40% managed by a solar-thermal turbine, or even the 18-20% of one of the new generation of cheap and cheerful thin-film solar cells.

ECONOMIST: Solar power

Such big projects make sense for large solar-cell producers like SunPower and Arizona-based First Solar, since they provide reliable demand with which to keep their manufacturing plants running at peak efficiency.

ECONOMIST: Some solar plants need to be big; most of them don��t