Power Systems
The power station that does not requier any moving part is

  Thermonic convertor.
 Wind power generation.
 Tidal power generation.
 Solar power generation.

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Power Systems
In order to have lower cost of power generaion

 the load factor and diversity factor should be low
 the load factor should be high but diversity factor should be low
 the load factor should be low but diversity factor should be high
 The load factor and diversity factor should be high

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