Energy costs are one of the most controllable recurring expenses in a household budget. Small changes in how you use electricity, heat, and cooling can cut monthly bills meaningfully — and some improvements pay for themselves within months. Most do not require major renovations or large upfront costs.
Start With a Home Energy Audit
Many utility companies offer free or low-cost home energy audits. An auditor evaluates where your home loses energy — drafty windows, poor insulation, inefficient appliances — and prioritizes the changes that would have the largest impact on your bills. Even if you cannot act on every recommendation immediately, knowing where the biggest losses are helps you focus your efforts.
If a professional audit is not available or affordable, you can do a basic self-assessment: check for drafts around doors and windows on a cold day, look at the age and efficiency ratings of your appliances, and review how your thermostat is set throughout the day.
Heating and Cooling
Heating and cooling account for roughly half the average household energy bill. Small adjustments to your thermostat settings have a proportionally large effect on costs.
Thermostat Settings
Setting your thermostat 7 to 10 degrees lower while you sleep or are away from home for 8 hours can save up to 10 percent per year on heating and cooling. A programmable or smart thermostat automates this — you set it once and it adjusts on a schedule. Smart thermostats also learn your patterns and optimize settings without requiring manual input.
Sealing Drafts
Weatherstripping around doors and caulk around windows are among the most cost-effective home improvements available. A few dollars of materials can eliminate drafts that have been quietly adding to your heating bill for years. Door sweeps on exterior doors, foam gaskets behind outlet covers on exterior walls, and attic hatch insulation are also simple, low-cost fixes.
HVAC Maintenance
A dirty air filter forces your heating and cooling system to work harder, using more energy and shortening its lifespan. Replacing or cleaning filters monthly during peak use and quarterly otherwise can reduce energy use by 5 to 15 percent. Having your system professionally serviced every year or two also improves efficiency and catches small problems before they become expensive repairs.
Lighting and Appliances
Switch to LED Bulbs
LED bulbs use 75 to 80 percent less energy than incandescent bulbs and last 15 to 25 times longer. The upfront cost is higher but pays back quickly through lower electricity bills and replacement costs. If you have not replaced incandescent bulbs throughout your home, this is one of the easiest and most cost-effective changes you can make.
Unplug Standby Devices
Electronics and appliances draw power even when turned off — this is called standby power or “phantom load.” TVs, cable boxes, gaming consoles, and phone chargers left plugged in all contribute. Using a smart power strip that cuts power to idle devices, or unplugging items you use infrequently, can reduce electricity use by 5 to 10 percent in the average home.
Wash Clothes in Cold Water
About 90 percent of the energy used by a washing machine goes toward heating the water. Modern detergents are formulated to work effectively in cold water for most laundry. Switching to cold-water washing for the majority of your loads can reduce laundry energy use by more than half and is especially easy if your machine has a cold-water setting.
Water Heating
Water heating is the second-largest energy expense in most homes. Setting your water heater to 120 degrees Fahrenheit (instead of the default 140 degrees many units ship with) reduces standby heat loss and eliminates unnecessary energy use. Insulating the first few feet of hot water pipes reduces heat loss as water travels from the heater to your faucet.
If your water heater is more than 10 to 15 years old, it is likely significantly less efficient than current models. When replacement becomes necessary, a heat pump water heater uses roughly half the energy of a conventional electric unit and qualifies for a 30 percent federal tax credit through 2032 under the Inflation Reduction Act.
Utility Assistance Programs
If energy costs are a significant burden, the Low Income Home Energy Assistance Program (LIHEAP) provides financial help with heating and cooling bills for households with limited incomes. Eligibility is based on income relative to the federal poverty level. Apply through your state energy office or local community action agency — find your local contact at LIHEAP.acf.hhs.gov.
Many utility companies also offer their own low-income rate discounts, budget billing programs that spread costs evenly across the year, and weatherization services. Call your utility and ask specifically about available assistance programs — they are often not prominently advertised.
Energy savings estimates are averages and vary by home, climate, and usage patterns. Program availability and eligibility change periodically — verify current details with your utility or program administrator.
