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Most renewable energy systems have, relative to conventional power generation, high initial costs and low running costs.

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The output voltage of the inverter is chosen according to the load requirements in stand-alone PV system.

There is high efficiency crystal silicon solar module, high conversion efficiency greater than 17%.

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如对成绩有疑问,应在成绩公布______ 日内以书面形式向课程所属学院提出复查成绩申请。

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