How to Save on Electricity: 10 Strategies That Actually Work
Updated 30 March 2026
The average US household spends $1,824 per year on electricity (900 kWh per month at 16.88 cents per kWh). With the right combination of efficiency improvements and rate optimization, most homes can reduce that by 15 to 40%, saving $275 to $730 per year. These 10 strategies are ranked by a combination of savings potential and ease of implementation, with estimated dollar savings and costs for each.
1. Smart Thermostat
Cost: $100 to $250
Smart thermostats like the Nest Learning Thermostat, Ecobee, and Honeywell Home learn your schedule and automatically adjust heating and cooling when you are away or asleep. The Department of Energy estimates that reducing your thermostat by 7 to 10 degrees for 8 hours per day saves up to 10% on annual heating and cooling costs. For a household spending $1,200 to $1,500 per year on HVAC, that translates to $100 to $150 in savings. Many utilities offer $50 to $100 rebates on smart thermostat purchases, reducing the payback period to 3 to 6 months. Set your thermostat to 78 degrees in summer and 68 degrees in winter as a baseline, then let the smart schedule optimize around your daily routine.
2. LED Bulbs Throughout Your Home
Cost: $50 to $100
LED bulbs use 75% less electricity than incandescent bulbs and last 25 times longer (25,000 hours versus 1,000 hours). A typical home has 30 to 40 light sockets. Replacing all incandescent bulbs with LEDs costs $60 to $120 at $2 to $3 per bulb. At the national average rate of 16.88 cents per kWh, a single 60-watt incandescent bulb running 5 hours per day costs $18.50 per year. The equivalent 9-watt LED costs $2.77 per year for the same light output. Multiply that $15.73 savings per bulb by 30 bulbs and the reduction is substantial. The payback period is just 3 to 4 months, making LED replacement one of the fastest-returning energy investments you can make.
3. ENERGY STAR Appliances
Cost: Varies (buy at replacement time)
When it is time to replace a major appliance, choosing ENERGY STAR certified models saves significant electricity over the appliance lifetime. An ENERGY STAR refrigerator uses 10% less energy than the minimum federal standard. An ENERGY STAR clothes washer uses 25% less energy and 33% less water than a standard model. An ENERGY STAR dishwasher uses 12% less energy and 30% less water. The key strategy is not to replace working appliances early (the embodied energy and cost rarely justify it) but to always choose ENERGY STAR when a replacement is needed. Over a 10-year appliance lifecycle, the energy savings typically total $100 to $500 per appliance.
4. Solar Panels
Cost: $14,000 to $18,000 after 30% federal tax credit
A typical 8kW residential solar system costs $20,000 to $25,000 before the 30% federal Investment Tax Credit (ITC), bringing the net cost to $14,000 to $17,500. In states with good sun exposure (California, Arizona, Texas, Florida), this system produces 10,000 to 14,000 kWh per year. At the national average rate of 16.88 cents per kWh, that offsets $1,688 to $2,363 in annual electricity costs. With net metering, excess power you send back to the grid earns bill credits. The payback period ranges from 6 to 10 years depending on your local rate and solar resource. Panels last 25 to 30 years with minimal degradation (0.5% per year), providing 15 to 20 years of nearly free electricity after payback. State and local incentives can further reduce costs by $1,000 to $5,000.
5. Time-of-Use Rate Plans
Cost: Free (plan switch)
Time-of-use (TOU) pricing charges different rates depending on when you consume electricity. Off-peak hours (typically 9pm to 7am) can be 20 to 40% cheaper than peak hours (4pm to 9pm on weekdays). If you can shift 40 to 60% of your electricity usage to off-peak times, the savings are substantial. Run your dishwasher, washing machine, and dryer after 9pm. Charge your electric vehicle overnight. Set your pool pump timer for early morning hours. Pre-cool your home in the early afternoon before peak pricing starts at 4pm. A household using 900 kWh per month that shifts half its usage to off-peak times can save $20 to $60 per month. Ask your utility if TOU rates are available and whether they offer a trial period.
6. Insulation and Air Sealing
Cost: $500 to $2,000
Air leaks around windows, doors, electrical outlets, and the attic hatch allow conditioned air to escape and outside air to enter, forcing your HVAC system to work harder. The Department of Energy estimates that air sealing and adding insulation can reduce heating and cooling costs by 15 to 20%. Start with the attic: if you have less than 12 inches of insulation (R-38), adding blown-in cellulose or fiberglass costs $1 to $2 per square foot. Seal the attic hatch, recessed lights, and plumbing penetrations with expanding foam. Weather-strip exterior doors and caulk window frames. For a home spending $1,500 per year on heating and cooling, a $1,000 insulation upgrade that reduces those costs by 20% saves $300 per year with a 3.3-year payback.
7. Power Strips for Phantom Loads
Cost: $25 to $50 for smart power strips
Electronics in standby mode consume electricity 24 hours a day even when turned off. The Natural Resources Defense Council estimates that phantom loads account for 5 to 10% of household electricity consumption. A cable box or DVR uses 15 to 30 watts continuously, costing $20 to $45 per year while doing nothing. A game console in standby uses 10 to 20 watts. A desktop computer in sleep mode uses 2 to 5 watts. Smart power strips detect when a primary device (TV, computer) is turned off and automatically cut power to connected peripherals (speakers, game console, monitor, printer). Place smart strips behind your TV setup, home office desk, and any entertainment center. The $25 to $50 investment typically pays back in 3 to 6 months.
8. Water Heater Optimization
Cost: $0 to $40
Water heating accounts for approximately 18% of household electricity consumption, second only to heating and cooling. Three simple changes reduce this cost significantly. First, lower the thermostat from the default 140 degrees to 120 degrees. Most people cannot tell the difference in shower temperature, and each 10-degree reduction saves 3 to 5% on water heating costs. Second, install a $25 insulating blanket around the water heater tank if it is in an unconditioned space (garage, basement). This reduces standby heat loss by 25 to 45%. Third, insulate the first 6 feet of hot water pipes leaving the heater with $5 foam pipe insulation. Combined, these three steps save $50 to $150 per year with minimal effort and near-zero cost.
9. Air Sealing and Weatherization
Cost: $50 to $300 (DIY)
Beyond insulation, targeted air sealing of the building envelope stops conditioned air from escaping. The most impactful areas to seal are the attic floor (where warm air rises and escapes through gaps around pipes, wires, and the attic hatch), the rim joist in the basement (where the foundation meets the framing), and around recessed lights and electrical outlets on exterior walls. Use expanding spray foam for gaps larger than a quarter inch and caulk for smaller cracks. Weatherstrip exterior doors with adhesive-backed foam or V-strip. A $10 tube of caulk and $15 can of spray foam can seal most penetrations in a typical home. The Department of Energy reports that sealing air leaks can reduce heating and cooling costs by 10 to 20%, saving $100 to $250 per year depending on the home age and current condition.
10. Rate Shopping in Deregulated Markets
Cost: Free
If you live in one of the 15 deregulated states (Texas, Ohio, Pennsylvania, Illinois, New York, Connecticut, Massachusetts, Maryland, New Jersey, Delaware, Maine, New Hampshire, Rhode Island, Virginia, Montana, or Michigan), you can shop for a cheaper electricity supplier without changing anything about your service. The local utility still delivers your power, but a different company generates it at a lower rate. Use your state comparison tool: PowerToChoose.org (Texas), PAPowerSwitch.com (Pennsylvania), EnergizeOhio.gov (Ohio). Compare rates per kWh, contract length, early termination fees, and renewable energy content. Shopping in spring or fall when market rates are lowest typically yields the best fixed-rate deals. The average savings from switching providers is $200 to $600 per year depending on how far above market your current rate is.
Combined Savings Potential
Implementing all 10 strategies is neither practical nor necessary. Savings overlap, and some strategies apply only to specific situations (rate shopping requires a deregulated state, solar requires homeownership). However, most households can realistically combine 4 to 6 of these strategies.
Renter-friendly combination (strategies 1, 2, 5, 7): Smart thermostat, LED bulbs, time-of-use rates, and power strips. Combined estimated savings: $300 to $600 per year with under $200 in upfront cost. Payback: 2 to 4 months.
Homeowner combination (strategies 1, 2, 4, 6, 8, 10): Smart thermostat, LEDs, solar panels, insulation, water heater optimization, and rate shopping. Combined estimated savings: $1,500 to $2,500 per year after solar payback period. Total upfront investment: $15,000 to $20,000 (primarily solar).
Budget-conscious approach (strategies 2, 7, 8, 9): LED bulbs, power strips, water heater optimization, and air sealing. Combined estimated savings: $300 to $600 per year with under $150 in total cost. Every one of these changes pays for itself within 6 months, making them zero-risk investments.