How to Lower Your Summer Electric Bill in 2026

Three forces are pushing summer electricity costs up at the same time. First, the rates themselves: utilities requested a record $31 billion in rate increases in 2025, double the 2024 figure, according to PowerLines.org. Southern California Edison raised residential rates 12.9% for 2026. Oregon's Pacific Power and Portland General Electric both raised rates again in March. El Paso Electric added both a rate hike and new fees in April.

Second, data center construction is absorbing grid capacity. Data centers now account for roughly 40% of new electricity demand growth nationwide. Utilities in Virginia created an entirely new rate class for data center load. In some service territories near large data center clusters, residential rates have increased as much as 267% to fund the grid expansion those facilities require.

Third, summer itself. Air conditioning accounts for 50% to 70% of a home's electricity consumption in warm climates during June through August. A central AC system running eight hours a day at 3,500 watts costs $5 to $6 daily at the national average rate. Run it 12 hours in a Phoenix or Houston July, and that is $7 to $9 a day from one appliance. Over 90 days, the AC alone adds $450 to $810 to a summer electric bill. The monthly AC cost breakdown covers this in detail by BTU size and SEER rating.

Central air conditioning dominates summer electricity cost. But four other appliances contribute more than most households track.

Central AC (3,000 to 5,000 watts): $130 to $380 a month depending on climate, daily runtime, and state rate. A 3-ton unit in a moderate climate at 8 hours a day costs about $130 to $165 a month. The same unit in a hot climate at 12 or more hours a day runs $220 to $380. The hourly cost ranges from $0.30 in low-rate states to $0.70 in Connecticut or Massachusetts. The AC cost per hour guide breaks this down by BTU size.

Window AC units (500 to 1,500 watts): $20 to $80 a month per unit. A 5,000 BTU window unit in a bedroom running 10 hours a day costs $7 to $12 a month. A 12,000 BTU unit cooling a living room costs $25 to $50. The per-unit cost is low, but households running three or four window units can match or exceed a central system's monthly draw.

Dehumidifiers (280 to 1,000 watts): $13 to $43 a month for a 500-watt unit running 12 hours a day. The compressor cycles on and off based on humidity, so the real cost runs about 60% of what the nameplate math suggests. The dehumidifier cost breakdown covers duty-cycle-adjusted numbers by state.

Pool pumps (750 to 2,500 watts): $30 to $150 a month. A single-speed 1.5 HP pump running eight hours a day costs $50 to $100 a month at average rates. Variable-speed pumps cut that to $15 to $45 by running at lower RPM for longer periods. The pool pump electricity guide has the full comparison.

Water heaters (3,500 to 5,500 watts): $35 to $50 a month year-round. Water heaters do not change much between seasons, but their baseline cost sits under everything else on the bill. In summer, shorter showers and no hydronic heating slightly reduce usage, but standby losses from keeping the tank hot 24 hours a day remain. The water heater is the appliance most households overlook when troubleshooting a high summer bill.

Every estimate below assumes a 90-day summer at the national average rate of 18.05¢/kWh. High-rate states save more per change. Low-rate states save less.

1. Set the thermostat to 78°F when home. The DOE estimates that turning the thermostat back 7 to 10 degrees for 8 hours a day saves up to 10% on annual heating and cooling costs. For a household spending $200 a month on summer electricity, each degree above 72°F saves roughly $4 to $8 a month. Seasonal total: $40 to $60.

2. Use ceiling fans and raise the AC set point. A ceiling fan uses 10 to 120 watts depending on speed and size. Running five fans 12 hours a day costs about $3 a month total. If the fans let you raise the thermostat 2 to 4 degrees without losing comfort, the AC savings of $20 to $50 a month easily cover the fan cost. The DOE notes that fans cool people through wind chill, not rooms. Turn them off when you leave.

3. Set the thermostat to 85°F or off when away. If the house is empty 8 to 10 hours on workdays, raising the set point to 85°F or turning the AC off eliminates 30% to 40% of daily cooling cost. Over a summer, that is $100 to $200 for a household that was previously cooling an empty house to 72°F. A programmable or smart thermostat handles this automatically.

4. Shift heavy appliances to off-peak hours. If your utility offers time-of-use rates, running the dryer, dishwasher, and washer before 2 PM or after 9 PM avoids peak pricing. PECO's super off-peak rate is 5.3¢/kWh versus 32¢ at peak. PSEG in New Jersey launches TOU rates June 1, 2026, with off-peak at 21¢ versus 31¢ on-peak. A household running three loads a day off-peak instead of on-peak saves $10 to $30 a month. The TOU rate guide covers whether your usage pattern makes the switch worthwhile.

5. Replace AC filters monthly during summer. A clogged filter forces the compressor to work harder to push the same volume of air. The DOE estimates that replacing a dirty filter can lower AC energy consumption 5% to 15%. At $150 a month in AC cost, that is $7 to $22 a month in savings. A four-pack of standard 20x25x1 filters costs about $15.

6. Block solar heat through west- and south-facing windows. Solar heat gain through windows accounts for roughly 25% to 30% of residential cooling load. Blackout curtains or cellular shades reduce that gain 40% to 60%. A $50 set of blackout curtains on two west-facing windows can save $15 to $30 a month in AC cost during peak summer months.

7. Seal air leaks around doors and windows. Weatherstripping a standard exterior door costs $5 to $15 in materials and reduces air infiltration around that opening 10% to 20%. A household with three leaky exterior doors and several single-pane windows can save $10 to $25 a month by sealing the gaps. The DOE's summer energy tips list air sealing as a top priority for reducing cooling costs.

8. Lower the water heater to 120°F. Many water heaters ship at 140°F. Dropping to 120°F reduces standby heat loss and saves $3 to $5 a month year-round. In summer, when hot water demand is lower, this is especially low-risk: less energy keeping water hotter than anyone needs it.

9. Run the pool pump at the lowest effective speed. A variable-speed pool pump at 1,200 RPM uses about 200 watts versus 1,800 watts at full speed. Over a summer, that is the difference between $45 and $270 in pump electricity. If you are still running a single-speed pump, cutting runtime from 10 hours to 6 hours a day (the minimum most pool service companies recommend for adequate filtration) saves $20 to $50 a month.

10. Pre-cool the house during off-peak hours. On TOU plans, running the AC hard from 6 AM to 2 PM (when rates are lowest) and raising the thermostat during peak hours (4 to 9 PM) lets the house coast on thermal mass. A well-insulated home loses about 1°F per hour with the AC off. Pre-cooling to 72°F at off-peak rates and letting the house warm to 78°F by 9 PM can cut peak-hour cooling cost 30% to 40%.

Every dollar figure above moves with your local electricity rate. At 12.44¢/kWh in Louisiana, a summer of central AC costs about $95 to $170. At California's average of 31¢/kWh, the same usage costs $235 to $420. In Hawaii at 39.89¢, summer cooling can exceed $500 for households without solar. The state rate breakdown lists every state's current residential rate with the latest EIA data.

Governor Newsom signed a $520 million California bill relief package in April 2026. SCE customers still saw a 12.9% rate increase this year. In New England, the EIA forecasts summer bills rising $13 per month over 2025. The Midwest and Southeast have lower per-kWh rates but higher cooling demand from longer, hotter summers. The total bill often converges more than the rate difference suggests.

The calculator below uses your state's current rate and the appliance's typical wattage to show what you are actually paying. Set the hours to match your summer usage. For central AC, 8 to 14 hours a day covers most climates. For a pool pump, 6 to 10. For a dehumidifier, 10 to 14.

If the source of a high summer bill still is not clear after checking individual appliances, the high-bill diagnostic walkthrough covers how to isolate the specific line item driving the increase.