You open the bill, see the total, and your first thought is that something must be wrong. Sometimes it is. More often, the jump comes from one of a few ordinary causes, and your bill already holds the clues. This guide walks through them in the order worth checking.
The short version
- Compare kilowatt-hours (kWh), not dollars. That tells you whether you used more or paid more per unit.
- The average U.S. home price was 18.31¢ per kWh in July 2026, up 4.9% from a year earlier (EIA).
- Heating and cooling are the biggest lever: ENERGY STAR says they make up almost half of a typical household’s energy bill.
Step one: separate “used more” from “paid more”
Find two numbers on your bill: the total kWh you used, and what you paid. Divide the dollars by the kWh to get your effective price per kWh. Do the same for last month and for the same month last year (many bills show a 12-month usage chart).
- If your kWh went up, you used more electricity. Look at weather, appliances and habits.
- If your price per kWh went up, your rate changed. Look at your utility’s rate notices, fuel charges or your plan.
- If both went up, that’s the classic summer or winter shock.
Example
Maria in Phoenix used 1,450 kWh in July and paid $232. That works out to 16.0¢ per kWh. Last July she used 1,180 kWh. Her rate barely moved, so nearly all of her higher bill came from using about 270 more kWh, most likely from the air conditioner running longer.
How to read the bill in two minutes
- Billing period. The start and end dates, and the number of days.
- Meter readings. The previous and current reading, and whether either is marked as estimated.
- Usage (kWh). The difference between the readings. This is the number to compare month to month.
- Supply or generation charge. The cost of the electricity itself, priced per kWh.
- Delivery or distribution charge. What the utility charges to move power over its wires, often per kWh plus a fixed monthly fee.
- Riders, taxes and fees. Smaller lines for fuel costs, programs and local taxes. They add up.
Many utilities also show a bar chart of your last 13 months of usage. That chart answers most “why is it so high” questions in one look: if this month’s bar is taller than the same month last year, you used more.
The 9 most common causes
1. Your rate went up
Electricity prices have been rising. EIA data shows the average U.S. residential price was 18.31¢ per kWh in July 2026, compared with 17.45¢ in July 2025. Some states rose much faster than that. See your state’s current rate and its change on our electricity cost pages.
2. The weather
EIA notes that electricity demand, and often prices, are highest in summer because of air conditioning. A heat wave or a cold snap can raise use far more than any gadget. If your bill jumped in the same month as unusual weather, that’s likely the answer.
3. Heating and cooling settings
ENERGY STAR says that for the average American household, “almost half the annual energy bill goes to heating and cooling – more than $900 a year.” A few degrees on the thermostat, especially while you’re asleep or away, does more than unplugging chargers ever will.
4. A new or failing appliance
A second fridge in the garage, a new hot tub, an aging AC unit with a clogged filter, or an electric water heater with a stuck element can all add dozens of dollars a month. If usage rose with no change in weather, think about what changed in the house.
5. Space heaters and dehumidifiers
A typical plug-in space heater draws 1,500 watts. Running one for 8 hours a day uses about 360 kWh a month, around $66 at the national average price. We do the full math in space heater vs. central heat.
6. An estimated meter reading
Look for “estimated” or “E” next to the reading. If the utility guessed last month and caught up with a real reading this month, one bill can carry two months of usage. Your next bill often evens out.
7. A longer billing period
A 34-day billing cycle will cost more than a 28-day one. Divide kWh by days to compare fairly.
8. Fixed charges and fees
Monthly customer charges, delivery fees and taxes add up regardless of how much you use. If those lines grew, your utility may have had a rate case approved; it should have sent a notice.
9. A plan or promotion ended
In states with retail choice, like Texas, a fixed-rate plan can end and roll onto a higher variable rate. Check the plan name and end date on your bill.
When to call the utility
Call if your usage doubled with no change in weather or appliances, if the bill shows an estimated reading two months in a row, or if a fee appears that you don’t recognize. Ask them to explain each line and to confirm the meter number on the bill matches the meter at your home. If you’re behind on payments, ask about payment plans and assistance programs before the due date; most utilities have them, and the federal Low Income Home Energy Assistance Program (LIHEAP) helps eligible households with energy bills.
What a fair price looks like where you live
Rates vary enormously. In EIA’s July 2026 data, the average residential price ranged from about 12.7¢ per kWh in Louisiana to 48¢ in Hawaii. On a 900 kWh month, that’s the difference between roughly $114 and $432. So “high” depends on your state. Compare your effective rate with your state’s average, not with a friend in another state.
Make the bill more predictable
- Budget billing. Many utilities average your yearly cost into equal monthly payments, then settle up once a year. It doesn’t lower the total, but it ends the summer and winter shocks.
- Time-of-use plans. Some utilities charge less for electricity used at off-peak hours. If you can run the dishwasher, laundry or EV charging late at night, it can lower your bill. If you can’t shift usage, it may cost more.
- Usage alerts. Many utility apps can text you when your month-to-date use is running high, so you find out before the bill arrives.
Quick fixes that actually move the number
- Adjust the thermostat a few degrees while you sleep or are away.
- Change the HVAC filter. A dirty filter makes the system work harder.
- Unplug or retire the second fridge if it’s mostly empty.
- Wash clothes in cold water and air-dry when you can.
- Ask your utility about budget billing (which evens out monthly payments) and free or discounted energy audits.
- Use the calculator. Our utility cost calculator shows what any appliance costs to run at your rate.
If none of these explain the jump, call your utility and ask them to check the meter reading. You’re allowed to ask, and occasionally they do find a mistake. For more ways to trim recurring costs, see our guide to lowering your monthly bills.
