When the heat goes up, air conditioning units have to work even harder to keep up, and electricity providers are bracing for a big weekend.
TVA reached the peak for the year so far on Monday at more than $29,000 megawatts.
They're expected to top that this weekend.
Officials say they are ready for demand, but any energy saving activities people can use will be helpful for everyone.
"TVA forecasts the demand to reach about 30,000 megawatts this week because of the hot temperatures. We're prepared to handle that load and we expect an extra demand because of cooling and air conditioners in these kinds of temperatures. But we also appreciate folks being aware of energy efficiency steps they can take to not only save money, but to help us meet that demand," said TVA spokesperson Mike Bradley.
TVA recommends saving high energy demand activities like running a dishwasher for later in the evening or early in the morning to cut back on use.