Electric BillsWhy Is My Electric Bill So High? Common Causes and How to Check
A high electric bill usually means more kWh, a higher price per kWh or a longer billing period. Here's how to tell which, and what to check next.
Electric Bills guides
Understand your electric bill: kWh, delivery and supply charges, time-of-use rates and why prices differ by state.
Electric Bills
Electric BillsWhat Is a Kilowatt-Hour (kWh)? How to Calculate Electricity Cost
A kilowatt-hour is 1,000 watts used for one hour. Here's how kWh differs from kW and how to calculate what any appliance costs to run.
Electric BillsHow to Read Your Electric Bill: kWh, Supply vs. Delivery, Fixed Charges and Riders
A line-by-line guide to your electric bill: kWh usage, supply and delivery charges, fixed customer charges, riders and taxes, and how to find your real cost per kWh.
Electric BillsTime-of-Use Electricity Rates Explained: How TOU Plans Work and Who Saves
Time-of-use rates charge more during peak hours and less off-peak. Learn how TOU plans work, how they compare with other time-based rates and how to decide.
Electric BillsWhy Electricity Prices Differ So Much by State
Electricity costs several times more per kWh in some states than others. EIA data shows how fuel mix, grid costs, regulation and climate drive the gap.
Frequently asked questions
What is a kWh on my electric bill?
A kilowatt-hour (kWh) is 1,000 watts used for one hour. Your bill multiplies the kWh you used by your price per kWh, then adds fixed charges, taxes and fees.
Why did my electric bill go up?
The usual causes are more heating or cooling, a longer billing period, a rate change or a new appliance. Compare kWh used with the same month last year to see which it is.
What is the average electricity rate?
The US 12-month average residential rate is 18.16¢ per kWh (EIA, through August 2026).