Tips to Keep Your Heating Bill Lower This Winter as Data Center Demand Could Drive Up Costs

Keeping your home warm could cost more as growing data center demand puts pressure on electricity prices in many parts of the country. Energy company Exelon explains that data centers and the increased use of artificial intelligence are raising electricity demand, which can drive up costs when supplies cannot keep pace.

Some households are already feeling the impact. FactCheck.org reported that electricity market researcher Sanya Carley attributed at least $10 a month in additional household electricity costs in western Maryland and Ohio to data centers, beginning in mid-2025. For families using electric heat, higher rates can make staying warm more expensive.

While you cannot control electricity prices, a few changes around the house can help reduce how much energy you need this winter.

Tips for keeping your heating bill low this winter

1. Keep your thermostat at a comfortable, modest setting

Duke Energy recommends using the lowest thermostat setting that keeps your household comfortable. A sweater or extra blanket may help you stay comfortable without turning up the heat. If you have a heat pump, avoid large thermostat changes that could trigger expensive auxiliary heat.

2. Stop drafts around windows and doors

If you feel cold air coming in, warm air may be escaping. Consumer Reports recommends sealing window and door leaks. Weatherstripping, caulk or a door sweep can help. A rolled-up towel along the bottom of a drafty door offers a simple temporary fix.

3. Check your heating system’s air filter

A dirty filter can make your heating system work harder and use more energy. Duke Energy recommends checking and changing filters regularly. Follow your equipment’s instructions for the right filter and replacement schedule.

4. Let the sunshine help

Open curtains during sunny winter days and close them at night, Duke Energy advises. Sunlight can help warm your rooms during the day, while closed curtains provide an extra barrier against cold windows after dark.

5. Watch how often you use space heaters

A small heater can still use a substantial amount of electricity when it runs for hours. Duke Energy warns that using electric space heaters as a main heating source can become expensive. Pay attention to how long they run rather than assuming their small size means a small cost.

6. Check your energy use before the bill arrives

Your utility’s online account or usage alerts may let you track consumption during the month. Checking regularly can help you notice a jump early and adjust your habits before the next bill arrives.

7. Ask about a home energy assessment

If your home is difficult to keep warm, ask your utility whether it offers an energy assessment or efficiency rebates. Duke Energy offers eligible customers assessments that identify opportunities to save energy, along with rebates for certain improvements. Availability depends on your utility and location.