Most people start by unplugging phone chargers or buying a “power saver” gadget, and those moves save little or nothing. To lower your electric bill, cut the biggest loads first: heating and cooling (about half of home energy use, according to the U.S. Department of Energy), water heating, and old or always-on appliances. Then check that your rate plan fits how you live. This guide ranks each fix by dollars saved so you know where to start.
Quick answer
Go after heating, cooling and water heating first. Set the thermostat near 78°F in summer and 68°F in winter when home, seal air leaks, switch to LEDs, and check your rate plan. Skip “power saver” boxes.
- Best for renters: thermostat habits, LEDs, power strips
- Best for homeowners: air sealing, then insulation or a heat pump
- Heating and cooling use about 50% of home energy. Water heating is usually next, at about 18% of utility bills (DOE).
- On a 900 kWh/month bill at 17 cents per kWh, four simple changes can save about $280 a year.
- Unplugging helps only a little. Standby power is about 5% to 10% of home use, and only some of it is avoidable.
- “Power saver” plug-in boxes do not reduce what your meter records.
- A rate plan that matches your habits can beat any single gadget.
- Federal home-efficiency tax credits ended for 2026 purchases, so check state and utility rebates instead.
- Why Did My Electric Bill Go Up?
- What Uses the Most Electricity in a Home?
- How Can I Lower My Electric Bill Right Away Without Spending Money?
- How Much Can These Changes Save? A Worked Example
- How Do I Lower My Electric Bill in Summer?
- How Do I Lower My Electric Bill in Winter?
- Water Heater, Dryer and Refrigerator Savings
- Does Unplugging Devices Actually Lower My Electric Bill?
- Is There a Device That Lowers My Electric Bill?
- Can Changing My Rate Plan Save Money?
- Which Upgrades Pay Back Fastest?
- Are There Programs or Tax Credits That Help?
- Frequently Asked Questions
Why Did My Electric Bill Go Up?
A bill rises for one of three reasons: you used more kilowatt-hours (kWh), the price per kWh went up, or fees and taxes changed. The U.S. Energy Information Administration (EIA) puts the 2025 US average residential price at roughly 17 cents per kWh, and prices have been rising faster than in earlier years. State averages run from roughly 12 cents to 40 cents.
To find your cause, compare this month’s kWh with the same month last year. Then divide the total bill by the kWh to get your real rate. For example, $153 divided by 900 kWh is $0.17 per kWh.
| Bill line | What it means |
|---|---|
| Energy or supply charge | Price per kWh for the power itself |
| Delivery or distribution | Cost of poles, wires and service. Often billed per kWh too |
| Customer (fixed) charge | Flat monthly fee. Saving kWh does not reduce it |
| Fuel or rate adjustments | Rider that changes with fuel and market costs |
| Tiers | Price steps up after you pass set kWh amounts |
| Demand charge | Fee based on your highest short-term power draw. Rare for homes, but some utilities use it |
- If your kWh is up and the rate is flat, your usage rose. Start with heating, cooling and water heating.
- If your kWh is flat and the rate is up, usage tips will help only a little. Look at rate plans and supplier options.
- If both are up, do both. Cut load first, then shop the plan.
- If only the fixed fees changed, call your utility and ask what changed.
What Uses the Most Electricity in a Home?
Heating and cooling come first, then water heating. Look there before you chase small items.
| Category | Typical share | Where to look first |
|---|---|---|
| Heating and cooling | About 50% of home energy (DOE) | Thermostat settings, air leaks, filters, insulation |
| Water heating | About 18% of utility bills (DOE) | Tank temperature, shower length, leaks |
| Standby (phantom) load | About 5% to 10% of residential use (Lawrence Berkeley National Laboratory / DOE) | Cable boxes, game consoles, old electronics |
| Everything else | The remainder | Refrigerator, dryer, cooking, lighting |
These shares are national averages. If you heat with gas, heating will not show on your electric bill, so your biggest electric loads may be cooling and the water heater. Your own bill history tells you more than any chart.
How Can I Lower My Electric Bill Right Away Without Spending Money?
Change the thermostat, shift laundry and dish cycles, and switch off what nobody uses. These cost nothing and work from the next billing cycle.
- Move the thermostat. DOE suggests about 78°F when home in summer and about 68°F in winter. A setback of 7 to 10°F for 8 hours a day can save up to about 10% a year on heating and cooling.
- Lower the water heater setting. 120°F is a common target. Check your manual first.
- Run full loads. Wash with cold water when the label allows it. Skip the heated dry cycle on the dishwasher.
- Air-dry what you can. A dryer is a big draw. See the appliance section for the math.
- Turn off lights and fans in empty rooms. Fans cool people, not rooms.
- Change dirty HVAC filters. A clogged filter makes the system work harder.
How Much Can These Changes Save? A Worked Example
Take a home that uses 900 kWh a month at $0.17 per kWh. That is 10,800 kWh a year and a $1,836 annual bill. Here is what four basic changes could save. The assumptions are listed so you can redo the math with your own numbers.
| Action | Assumptions | kWh saved per year | Dollars saved per year |
|---|---|---|---|
| Thermostat setback | Heating and cooling are half of use (5,400 kWh a year). Saves the DOE maximum of 10% | 540 | $92 |
| LEDs | 10 bulbs, 60W incandescent to 9W LED, 3 hours a day | 558 | $95 |
| Standby cuts | 30W of avoidable standby load, 24 hours a day, using power strips | 263 | $45 |
| Water heating | Water heating is 18% of the bill (about 1,944 kWh). Cut 15% with 120°F and shorter showers | 292 | $50 |
| Total | 1,653 | about $281 (15%) |
Adding air sealing and insulation could cut more. EPA ENERGY STAR says these can save an average of about 15% on heating and cooling. On the same 5,400 kWh, that is about 810 kWh, or $138 a year. These savings overlap, so do not simply add them. Your real savings will differ with your climate and home.
How Do I Lower My Electric Bill in Summer?
Raise the thermostat, block the sun, and keep the AC clean. Cooling is usually your largest summer load.
Summer checklist for one afternoon
- Set the thermostat to 78°F when home. Raise it more when you are out.
- Close blinds and curtains on sun-facing windows during the day.
- Run ceiling fans in occupied rooms only. Turn them off when you leave.
- Replace or clean the AC filter. Many makers suggest checking it every 1 to 3 months.
- Clear leaves and clutter from around the outdoor unit so air can flow.
- Cook with a microwave, slow cooker or outdoor grill on hot days.
- Run the dishwasher and dryer in the evening to cut heat gain during the day.
- Plug a window AC straight into a wall outlet. Never use an extension cord.
How Do I Lower My Electric Bill in Winter?
Set the thermostat near 68°F when home, use the sun by day, and stop heat from leaking out. Electric heat costs the most of any season.
- Drop the setting 7 to 10°F while you sleep or are out.
- Open south-facing curtains by day and close them at night.
- Add weatherstripping to doors and caulk around window frames.
- Seal gaps where pipes and wires enter the walls, and check the attic hatch.
- Replace the furnace or heat pump filter on schedule.
- Use warm clothes and blankets before you raise the setting.
Water Heater, Dryer and Refrigerator Savings
These three run daily and can quietly add up.
- Water heater: Set it to 120°F, fix dripping hot taps, and fit low-flow showerheads. If it is old, a heat pump water heater is two to three times as efficient as a standard electric tank, according to DOE.
- Dryer: Assume a 3,000-watt dryer runs one hour per load. That is 3 kWh, or about 51 cents. Five loads a week costs about $133 a year. Clean the lint trap every load and use the sensor-dry setting.
- Refrigerator: Keep the fridge near 37°F to 40°F and the freezer near 0°F. Clean the coils and check door seals. An old second fridge in the garage is a common target. A plug-in watt meter will show what it really uses.
Does Unplugging Devices Actually Lower My Electric Bill?
Yes, but only a little, and only for devices that draw real power while “off.” Standby load is about 5% to 10% of residential electricity use (Lawrence Berkeley National Laboratory / DOE). Most of that comes from a handful of devices.
| Device in standby | Typical watts (approximate) | Annual cost at $0.17 per kWh |
|---|---|---|
| Cable or DVR box | 20 | about $30 |
| Game console (instant-on) | 10 | about $15 |
| Wi-Fi router | 10 | about $15 |
| Soundbar or receiver | 5 | about $7 |
| Desktop PC asleep | 3 | about $4 |
| Microwave clock | 2 | about $3 |
| TV in standby | 1 | about $1.50 |
| Phone charger, nothing attached | 0.1 | about 15 cents |
Watts are rough typical values and vary by model. The formula is watts × 8,760 hours ÷ 1,000 × $0.17. Skip the phone chargers. Put the TV, console and audio gear on one power strip and switch it off at night. Keep the router on if you need it.
Is There a Device That Lowers My Electric Bill?
Some real devices help, and some do not. Smart thermostats help if you use schedules and setbacks. Smart plugs help only on devices with notable standby draw, because the plug itself uses a small amount of power. “Power saver” boxes that plug into a wall outlet are the ones to avoid.
These boxes claim to “clean” or “stabilize” your power. Nothing in them reduces the energy your appliances use, and your meter counts real energy used. A glowing light or a short online video proves nothing. A watt meter on the same appliance, with and without the box, will show no change. Treat them as a scam.
| Device | Does it lower the bill? |
|---|---|
| Smart thermostat | Yes, if you set and keep an efficient schedule |
| Smart plug | Sometimes, for high-standby gear |
| Plug-in watt meter | Indirectly. It shows you which devices cost the most |
| “Power saver” box | No |
Can Changing My Rate Plan Save Money?
Yes, if your habits match the plan. Time-of-use (TOU) plans charge more at peak hours, often late afternoon and evening, and less at night. Flat plans charge one price all day.
Here is an illustrative example. Suppose peak power costs $0.35 per kWh and off-peak costs $0.12. Moving 100 kWh a month from peak to off-peak saves 100 × $0.23 = $23 a month, or $276 a year. Good loads to shift include the dishwasher, laundry, and EV charging. If you cannot shift, a TOU plan may cost more, so check the schedule first.
- Ask your utility what plans it offers and whether your meter supports TOU.
- In deregulated states, compare suppliers on your state utility commission’s website. Look at fixed versus variable rates, monthly fees and early cancellation charges.
- Budget billing levels out your payments, but it does not lower your total cost.
Which Upgrades Pay Back Fastest?
Cheap fixes pay back fastest: LEDs, power strips, weatherstripping. Bigger equipment takes longer, and the payback depends on your rate and climate. The ranges below are rough estimates, not quotes.
| Action | Cost | Effort | Typical annual savings (900 kWh/month example) | Payback |
|---|---|---|---|---|
| Thermostat and water heater settings | Free | Low | About $90 and $50 | Immediate |
| Power strips for TV and console | $10 to $25 | Low | About $45 | Under 6 months |
| LEDs (10 bulbs) | About $30 | Low | About $95 | About 4 months |
| Weatherstripping and caulk | $50 to $150 DIY | Medium | Part of the $138 air sealing estimate | 1 to 2 years |
| Smart thermostat | $100 to $250 | Low | Varies with how you use it | Often 2+ years |
| Attic insulation | $1,500 to $4,000 | High (contractor) | Part of the 15% heating and cooling estimate | Many years |
| Heat pump water heater | $1,500 to $3,500 | High (licensed pro) | About $200 (assumes 2.5× efficiency on 1,944 kWh) | About 8 to 15 years, faster at high rates |
| Heat pump for heating and cooling | Often $8,000+ | High (licensed pro) | Depends on what it replaces | Often 10+ years |
ENERGY STAR LED bulbs use at least 75% less energy than incandescents and last up to 25 times longer. Water heaters, heat pumps and panel or wiring changes need a licensed electrician or HVAC contractor.
- If you rent, do the free settings, LEDs and power strips. Ask your landlord about weatherstripping.
- If you own an older, drafty home, seal air leaks before buying new equipment.
- If your water heater or AC is near the end of its life, price an efficient replacement before it fails.
Are There Programs or Tax Credits That Help?
Yes, but the federal picture has changed. The federal home-efficiency and residential clean energy tax credits were set by 2025 law to end for expenses after December 31, 2025, so they do not cover new purchases this year. Confirm with a tax professional.
- LIHEAP: Helps eligible low-income households with energy bills. Congress and HHS set funding, and budgets have changed, so apply early and confirm status with your state LIHEAP office or by calling 211.
- Weatherization Assistance Program: Offers free efficiency work to eligible households through state agencies.
- Utility rebates: Many utilities offer rebates on heat pumps, smart thermostats, insulation and free energy audits. Call yours before you buy.
- State energy offices: Some run home energy rebate programs. Availability varies by state.
On rates, most retail electricity prices are set by state utility commissions, not Washington. Federal policy debates over power demand and grid costs continue, but no federal action will cut your bill this month. Your own usage and plan are the levers you control.
Frequently Asked Questions
How can I lower my electric bill?
Start with heating, cooling and water heating. Set the thermostat near 78°F in summer and 68°F in winter when home, seal leaks, switch to LEDs, and check your rate plan. In the worked example, four simple changes saved about $281 a year.
How to lower electric bill in summer?
Raise the thermostat, close sun-facing blinds by day, use fans only in occupied rooms, change the AC filter, and run big appliances in the evening.
How to lower electric bill in winter?
Aim for about 68°F when home, set back 7 to 10°F while asleep or out, use sunlight by day, and weatherstrip doors and windows. Avoid heating whole rooms with plug-in space heaters.
What device lowers electric bill?
A smart thermostat can, if you use it to set back temperatures. Power strips and smart plugs help on high-standby gear. A plug-in watt meter shows where your money goes. “Power saver” boxes do not work.
What lowers electric bill the most?
Cutting heating and cooling use, since they make up about half of home energy. Air sealing, insulation and an efficient heat pump have the largest long-term effect, though they cost more up front.
How can you reduce electricity bill without buying anything?
Adjust the thermostat, lower the water heater to 120°F, wash in cold water, air-dry laundry, switch off unused lights and electronics, and compare your usage month to month.
