How to Find Your Electricity Rate on a Bill

Use an all-in historical price

Find the total charges for electric service and the total kilowatt-hours used for the same billing period. Divide dollars by kWh. The result is an all-in historical price expressed in dollars per kWh.

Example

If a bill shows $186 in electric charges and 1,020 kWh, the all-in price is about $0.182 per kWh, or 18.2 cents per kWh. Enter 0.182 in a calculator that asks for dollars per kWh.

Why the advertised rate may not match

A supply rate may exclude delivery charges, riders, fuel adjustments, taxes, and monthly customer charges. Time-of-use plans can apply several prices within one bill.

• Keep the charges and kWh from the same billing period.
• Exclude unrelated services such as gas, internet, or prior balances.
• For solar customers, separate imports, exports, credits, and fixed charges.

When not to use the all-in price

An all-in price is excellent for explaining a past bill. It is less precise for forecasting a new appliance when a large part of the bill is fixed and will not change with usage. For marginal cost, use the variable charge that applies to the additional kWh.