Why does DC have more waste (less efficiency) over long distance than AC?
Why does DC have more waste (less efficiency) over long distance than AC?
Answer
DC has more waste over long distances than AC because DC voltage cannot be stepped up or down using transformers like AC voltage can.
This means that DC power lines must use thicker wires to carry the same amount of power as AC lines.
The thicker wires cause more resistance in the line, which leads to more energy being lost as heat.
