In the process of getting energy to power your television, which of the following stages is the most energy efficient?
A) Mining the coal to run the power plant
B) Burning the coal to run the power plant
C) Thermal conversion of the energy from coal in the power plant
D) Transmission to your house
E) Actually powering your television set

Question

Quizplus · Accepted Answer

The process of actually powering your television set is the most energy-efficient stage listed. This is because the energy losses associated with the earlier stages (mining, burning, thermal conversion, and transmission) have already occurred, and the electricity that finally reaches and powers your television undergoes minimal further losses.

In the Process of Getting Energy to Power Your Television