Concept:Electrical power cannot do work by itself; it requires a machine like a motor to convert it into useful work.
Explanation:Electrical power can be produced from solar energy, so option A is correct.
It is considered one of the cleanest sources of farm power, so option B is correct.
Electrical power cannot perform work on its own because it needs devices such as motors or appliances for conversion, so option C is not correct.
It is capital intensive since generating and distributing electricity requires expensive infrastructure, so option D is correct.
Answer:C. can perform work on its own