How to lower your electric bill

What is the fastest way to lower an electric bill?

There is no single trick that works for every home, but the fastest realistic wins are the free ones: thermostat setbacks, fixing dripping hot water, unplugging standby electronics, and switching remaining incandescent bulbs to LED. These cost nothing or very little and can be done this week, before considering any equipment purchase.

Where does a typical household's electricity actually go?

Exact shares vary by climate, house size and appliance mix, but national averages give a useful starting point for prioritizing effort. If you want a rough dollar estimate for your own home, the electricity cost calculator can help translate these shares into your actual rate.

How much can thermostat and HVAC changes save?

• Set thermostat setbacks: roughly 7-10% savings per year for each 7-10°F setback held for eight hours a day, according to widely cited DOE guidance.
• Replace or clean HVAC filters monthly during heavy-use seasons — a clogged filter forces the blower motor to work harder.
• Seal obvious duct leaks in accessible areas like attics and basements.
• Use a programmable or smart thermostat so setbacks happen automatically, even when you forget.
• Have your system serviced yearly; refrigerant or airflow problems can quietly increase run time without you noticing.

What about water heating?

• Lower the water heater thermostat to 120°F (49°C) — hot enough for most households, and safer for children.
• Insulate the first few feet of hot and cold pipe near the tank, and insulate the tank itself if it feels warm to the touch.
• Fix dripping hot water faucets; a slow drip wastes both water and the energy used to heat it.
• Wash more laundry loads in cold water; water heating is a major share of a washing machine's electricity use.

How much do phantom and standby loads really cost?

Many devices draw power continuously even when 'off' — game consoles, set-top boxes, phone chargers, and appliances with always-on displays or remote sensors. Individually small, these loads add up across a household, month after month.

• Put chargers and entertainment centers on a power strip you switch off when not in use.
• Unplug rarely-used appliances (spare fridge, guest-room electronics) entirely.

Is switching to LED lighting worth it?

• Replace remaining incandescent or halogen bulbs with LEDs — LEDs use roughly 75-80% less energy for the same brightness and last far longer.
• Use dimmers and occupancy sensors in rooms that are frequently left lit.
• Take advantage of natural daylight where practical instead of running fixtures during the day.

What laundry and appliance habits actually help?

• Wash full loads rather than several small ones.
• Use cold water washes and high-spin cycles to cut dryer time.
• Clean the dryer lint trap every load — a clogged trap increases run time and is a fire risk.
• Air-dry when practical, especially in warm weather.
• Check appliance age: refrigerators and window AC units older than 12-15 years are often markedly less efficient than current ENERGY STAR-rated models.

Do time-of-use rates and insulation matter?

If your utility offers a time-of-use (TOU) plan, electricity is priced differently depending on the hour of day. Shifting laundry, dishwashing and EV charging to off-peak hours, typically overnight, can lower costs without reducing total kWh used.

Insulation and air sealing address the root cause of high HVAC load: adding attic insulation, sealing window and door gaps, and using weatherstripping reduce how hard your heating and cooling system has to work in the first place, which compounds with any thermostat or equipment changes above.

Where does power-factor correction fit into this list?

Power-factor correction, the mechanism behind a plug-in device like StopWatt, is a real and long-used engineering practice, but for most US homes it is a smaller lever than HVAC, water heating and standby-load fixes. That is because residential meters bill real power in kWh, not reactive power, so the biggest industrial benefit of correction (avoiding a kVA penalty) does not apply the same way at home.

Where it can help is homes with heavy motor loads — older AC compressors, well pumps, workshop tools — by slightly reducing in-home wiring losses while those loads run. If that describes your home and you have already worked through the free and low-cost changes above, it is a reasonable low-cost addition; read does StopWatt lower an electric bill for a fully honest breakdown before buying.

What order should I tackle these changes in?

1. 1

   Fix obvious waste first

   Air leaks, dripping hot water, and always-on standby devices cost nothing to address and often save the most per hour of effort.

2. 2

   Adjust thermostats and water heater temperature

   These are free changes with real, measurable impact on your next bill.

3. 3

   Switch remaining lighting to LED

   A one-time swap that keeps paying back for years.

4. 4

   Shift flexible loads to off-peak hours

   If you're on a time-of-use rate, move laundry, dishwashing and EV charging to cheaper overnight windows.

5. 5

   Consider equipment and add-ons last

   Only once the free and low-cost changes are done should you evaluate HVAC replacement, appliance upgrades, or a motor-load helper like StopWatt for homes that fit the profile.