Short answer: the number that matters most is your all-in price per kWh: total bill ÷ kWh used. In 2024 the average U.S. household used 865 kWh a month and paid $144, according to the EIA, which works out to about 16.6 cents per kWh. Once you know your own number, every savings decision (solar, EV charging, a new heater) gets easier.
The six parts of a typical bill
| Section | What it means | Can you lower it? |
|---|---|---|
| Usage (kWh) | Energy used this billing period, from meter readings | Yes: efficiency, timing |
| Supply / generation | The cost of producing the electricity (per kWh) | Sometimes: in states with supplier choice |
| Delivery / distribution | Poles, wires, meters and grid upkeep (per kWh) | Only by using less |
| Fixed customer charge | Flat monthly fee, regardless of use | No |
| Riders and surcharges | Fuel adjustments, storm recovery, efficiency programs | Only by using less |
| Taxes | State and local taxes and fees | No |
Step by step: reading your bill
- Billing period and days. A 33-day bill will be bigger than a 28-day one. Compare usage per day.
- Meter readings. Check that they are “actual”, not “estimated”. Estimated bills get corrected later.
- Rate schedule name (for example “Residential Service” or a time-of-use code). Look it up on your utility’s site to see all the prices.
- Tiers or time periods. Some utilities charge more once you pass a “baseline” amount; time-of-use plans split usage into peak and off-peak. See time-of-use rates, explained.
- Usage history chart. Most bills show 12-13 months. A winter spike points to electric heating; a summer spike to air conditioning.
- Your all-in price. Divide this period’s charges (not any past balance) by kWh used.
Worked example
Here is a simplified bill for 865 kWh, the 2024 U.S. average:
| Line | Amount |
|---|---|
| Fixed customer charge | $15.00 |
| Supply: 865 kWh × 8.0¢ | $69.20 |
| Delivery: 865 kWh × 6.5¢ | $56.23 |
| Taxes and riders | $3.57 |
| Total | $144.00 |
The per-kWh parts add up to 14.5 cents, but the all-in price is $144 ÷ 865 = 16.6 cents. Use the all-in price to compare months and utilities. For savings math, use the per-kWh parts (14.5 cents here, plus any per-kWh riders), because the fixed charge stays the same however little you use. The line amounts are illustrative; your utility’s split will differ.
Fixed charges are growing
Some utilities are moving costs into flat monthly charges. In California, many customers of the three big utilities now pay a fixed charge of about $24 a month (about $6 for CARE and $12 for FERA low-income customers), with lower per-kWh prices in exchange, according to NRG Clean Power’s summary of CPUC decisions. More fixed cost means each kWh you save is worth a bit less.
Red flags worth a phone call
- Several “estimated” readings in a row.
- Usage that jumps 30% or more with no change in weather or habits (a failing water heater or well pump can do this).
- A rate plan you didn’t choose, or a third-party supplier you don’t recognize.
FAQ
Why is my bill higher than my neighbor’s? Home size, heating type, number of people and appliance age matter more than rates within the same utility.
What’s a kWh? One kilowatt used for one hour. See kilowatts vs kilowatt-hours.
Where can I compare state averages? The EIA publishes them; in 2024 Utah had the lowest average bill ($89) and Hawaii the highest ($213).