Ever wonder how much energy is used by your different major appliances or electronics? Or how much energy all such appliances and electronics in the U.S. use? Here’s some info on that for four big ones: TVs, computers, clothes dryers, and refrigerators. f course, these are the averages. By buying energy-efficient electronics and appliances or using such things less, you can make a big difference when it comes to energy use (and the size of your electric bill).