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G4E11

Which of the following is a disadvantage of using wind as the primary source of power for an emergency station?

Select	Answer
A	The conversion efficiency from mechanical energy to electrical energy is less than 2 percent
B	All of these choices are correct
C	The voltage and current ratings of such systems are not compatible with amateur equipment
D	A large energy storage system is needed to supply power when the wind is not blowing

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