Most "save energy" advice is either too vague ("turn things off!") or assumes you'll spend thousands on solar. This guide is the opposite: every fix below pays for itself in under two years and most cost less than $50.
1. Replace your worst always-on appliance
Anything that runs 24/7 dominates your bill. The usual suspects: pre-2001 refrigerators, electric water heaters, dehumidifiers, and second "garage" fridges. A pre-1993 fridge can use 3-4× the power of a modern unit.
Action: Walk through your house with a smart plug meter (about $25). Anything drawing more than 50 W on average is a candidate for replacement, scheduling, or removal.
2. Switch all bulbs to LED
LEDs use about 10× less power than incandescents and 2-3× less than CFLs, with similar light output. A whole-house swap is usually $40-$80 and pays back in under a year.
3. Stop heating with electric resistance
Plug-in space heaters are the most expensive way to heat. If you use one nightly, a heated mattress pad ($30, 60 W) costs about 1/20th as much per night.
Cheap heating fixes that work
- Drop the thermostat 3-5°F at night and when you're out (programmable or smart stat).
- Reverse ceiling fans to clockwise on low — pushes warm air down.
- Close vents and doors in unused rooms.
4. Kill phantom loads
TVs, set-top boxes, game consoles, and chargers all draw power 24/7. Plug them into switched power strips and turn them off when not in use. Typical savings: $50-$150/year.
5. Air seal the obvious leaks
Door sweeps, window weatherstripping, and outlet gaskets cost under $50 total and cut heating and cooling costs by 5-10% in a typical home. See our air sealing for beginners guide.
6. Tune your thermostat
ENERGY STAR's published average for smart thermostat savings is $50/year on heating and $50/year on cooling. The bigger your bill, the bigger the win.
7. Wash cold, dry smart
Heating water is the second-biggest electricity use after HVAC. Wash on cold whenever possible and air-dry one load per week to save $30-$80/year.
Cost comparison
- LED bulb swap (whole house): $50 → $90/yr saved → 7-month payback
- Smart thermostat: $130 → $100/yr saved → 16 months
- Door sweep + weatherstripping: $30 → $40/yr → 9 months
- Heated mattress pad replaces space heater: $30 → $200/yr → under 2 months
Try the calculator
Appliance Energy Cost Calculator
Plug in any wattage to see daily, monthly, and yearly cost.
DIY safety & liability notice
This guide is for general information only. Any work you do on your home is at your own risk. Energy Savings Toolkit is not responsible for improper installation, property damage, or injury. Follow product instructions and local codes, and hire a licensed professional for electrical, gas, HVAC, roofing, or structural work. See our Disclaimer.
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