Most households pay an electricity bill every month without ever reading it past the total. That's understandable — the layout is built around regulatory requirements, not user experience — but the bill contains the information that decides whether efficiency upgrades, time-of-use plans, or rooftop solar will actually save you money.
This guide explains the standard sections of a US residential bill: who you're paying, what each charge is for, and how to read your usage so it can inform real decisions.
Supply vs delivery: two charges, sometimes two companies
Most US electricity bills split into two main blocks: supply (the cost of the electricity itself, expressed per kilowatt-hour) and delivery (the cost of moving that electricity over wires to your house). In regulated states, both come from your utility. In deregulated states — including Texas, Pennsylvania, New York, Illinois, and others — you can choose a separate supplier, while the wires utility remains the same.
The total per-kWh cost (supply + delivery) is what you should compare across plans or against the value of efficiency. Looking only at supply can make a competitive rate look better than it really is.
Fixed vs variable charges
Every residential bill has at least one fixed monthly charge — variously called "customer charge," "basic service charge," or "facilities charge" — that you pay regardless of usage. It typically ranges from a few dollars to over $20 depending on the utility. Reducing your usage doesn't reduce this fee.
Variable charges scale with kilowatt-hours used. Many utilities use tiered pricing (the first 500 kWh at one rate, additional usage at a higher rate) or time-of-use pricing (different rates by time of day). Your bill will show which structure applies and how your usage broke down.
Riders, surcharges, and taxes
The bill usually lists several small line items: transmission charges, distribution charges, system benefits or public-benefits charges (funding low-income programs and energy efficiency), renewable portfolio surcharges, and state and local sales taxes. Individually they look minor; together they often make up 20–35% of the total. The Energy Information Administration publishes state-by-state average rates that include all components — that's the apples-to-apples number for comparisons.
- Customer / basic service charge (fixed)
- Generation or supply charge (per kWh)
- Transmission and distribution (per kWh)
- Riders for renewable, efficiency, or low-income programs
- State and local taxes
Using the usage chart
Most utility bills include a 12- or 13-month bar chart of your monthly kWh use. This chart is more useful than the total dollar amount because rates change but usage tells you what's happening in your home. Big seasonal spikes usually point to heating or cooling. A persistent increase across all months suggests an always-on load — old refrigerator, electric water heater, pool pump, or a new appliance you didn't account for.
If your utility offers a smart-meter portal, you can typically download interval data (hourly or 15-minute usage). That data makes it possible to identify exactly when consumption spikes — for instance, an electric water heater that fires twice a day or HVAC running through the night.
Time-of-use plans and demand charges
Many utilities now offer time-of-use (TOU) plans where rates are lower at night and on weekends and higher during peak afternoon hours. For households that can shift laundry, EV charging, and dishwasher cycles to off-peak hours, a TOU plan often saves meaningful money. For households with rigid daytime usage, a flat rate may be better. Most utilities offer a "rate analysis" or "bill comparison" tool that runs your last 12 months of usage against alternative plans.
A few utilities also apply a "demand charge" based on your single highest 15-minute usage peak in the billing period. Demand charges are common on commercial bills and increasingly appearing on residential bills with rooftop solar or EVs. If your bill has one, peak-shaving (avoiding running multiple high-draw appliances at the same time) can reduce it.
If something looks wrong
Sudden, unexplained jumps usually have a mundane cause: a meter-reading estimate followed by a true-up, a malfunctioning appliance, or a new resident. Compare against the same month a year ago, then check for obvious culprits. If the bill is wrong, every state's public utility commission accepts billing complaints; the FERC handles wholesale issues. Your bill should list the relevant contact for disputes.