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How to Lower Your Energy Bill at Home

Heating and cooling are usually the biggest part of a home energy bill, so that is where small changes add up. Start with the free habits, then the cheap fixes, then the bigger upgrades.

Reviewed · 3 official sources

Free: habits

  • Set the thermostat a little lower in winter and higher in summer, and further when you are out or asleep. A programmable or smart thermostat does it for you.
  • Turn off lights and devices you are not using, and unplug chargers and electronics that draw power on standby.
  • Wash clothes in cold water when you can, and run full loads in the washer and dishwasher.

Cheap: quick fixes

  • Seal drafts around windows and doors with weatherstripping or caulk.
  • Replace the bulbs you use most with LEDs.
  • Clean or replace HVAC filters on schedule.
  • Use thermal curtains on drafty windows.

Bigger: upgrades and rebates

When an appliance needs replacing, compare ENERGY STAR certified models; the yellow EnergyGuide label shows estimated yearly running cost. Before any bigger upgrade (insulation, heat pump, water heater), check your utility's website and the ENERGY STAR rebate finder for rebates in your area.

Official sources

Terms and amounts change. Check the current details here.

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Questions

What uses the most energy at home?

In most homes, heating and cooling, followed by water heating. That is why thermostat settings and sealing drafts matter most.

Do LED bulbs really save money?

Yes. LEDs use much less electricity than incandescent bulbs for the same light and last far longer. Start with the lights you use most.

How do I find energy rebates?

Check your utility company's website and the ENERGY STAR rebate finder, which lists offers by ZIP code.

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AltFTool is an independent website and is not affiliated with any program, brand or agency mentioned. Names are trademarks of their owners. This page is general consumer information, not financial, legal or benefits advice. Always confirm current terms on the official site. Content reviewed 2026-11-01. Affiliate disclosure