Energy costs: what goes into the price?
Understand your electricity and natural gas bills. Start with your actual usage, then check supply charges, delivery fees and the rate options available at your address.
Key cost drivers
- Electricity use in kWh and the applicable rate
- Natural gas use in therms or the units on your bill
- Utility delivery charges, fixed fees and applicable taxes
Build a complete budget
Use a written offer or the amounts on your own bill as the starting point. Separate recurring charges from one-time costs and ask which items are estimates. U.S. prices and availability vary by location, provider and the details of the product or project. A national headline price is not a quote for your circumstances.
The cost check adds up your own monthly expenses in dollars. You can also compare two monthly amounts over twelve months, including a one-time cost. The tool uses your entries rather than live market prices.
Your options for energy costs
| Option | What it means | What to check |
|---|---|---|
| Utility service | Your local utility supplies or delivers energy. | Ask about the rate schedules available for your account. |
| Retail supplier | A separate company may sell the supply portion. | Supplier choice depends on your state and service territory. |
| Time-of-use pricing | Electricity prices vary by the time you use it. | Compare the schedule against your own hourly use. |
What to look for before deciding
Read a full year of bills
Start with twelve months of electricity and gas usage. Weather, heating equipment and time at home can change the pattern. Separate supply, delivery and other charges so you know which part a different plan would affect. A lower advertised supply rate does not automatically reduce every charge on your bill.
Check the choices at your address
Energy shopping works differently across the United States. Some households can choose an electricity or gas supplier; others choose among utility rate schedules. Confirm your service territory before considering an offer. Ask whether a rate is fixed or variable, when it can change and whether a cancellation fee applies.
Budget for the way you actually live
An electric vehicle, heat pump or new household member can change your energy use. Build a future budget around those changes rather than an old monthly average. If you consider solar, ask your utility how imported and exported electricity are billed. Use written current terms instead of a national savings claim.
Your practical checklist
Keep the same information beside each offer. If a detail is missing, ask the provider to explain it in writing before deciding. Compare equivalent specifications and the same time period.
- Twelve months of electricity and gas usage
- Utility and service territory
- Fixed charges and contract end date
- Rate changes, export credits and exit fees
Want to put your regular household expenses in one place first? Start your monthly cost check, or browse our saving guides for a practical next step.
Frequently asked questions
Can everyone switch energy suppliers?+
No. Availability depends on the state, utility and service territory. Check your utility and state utility regulator.
Is the lowest kWh price the lowest bill?+
Not necessarily. Fixed charges, delivery fees, usage periods and other terms affect your total.
Explore the official guidance
Check current terms, availability and any local requirements with the relevant provider or authority. Reviewed October 19, 2026. HeyCosts provides general planning information; offers and decisions remain with the provider.