How the numbers are calculated

Every figure comes from Form EIA-861, Sales to Ultimate Customers, residential columns, part A. The latest year is 2025 final data, released by EIA on October 7, 2026. The chart runs from 2015 through 2025.

Price

Cents per kilowatt-hour = residential revenue in thousand dollars × 100 ÷ residential sales in megawatt-hours.

Monthly bill

Average monthly bill = residential revenue in thousand dollars × 1,000 ÷ residential customers ÷ 12.

What is left out

• A utility is listed only when one service type in that state has at least 100,000 residential customers. Smaller utilities are omitted so the site is not thousands of thin pages.
• Bundled, delivery-only, and energy-only filings are never added together. Adding them would invent a bill nobody pays.
• Where EIA published both an observed row and an imputed row, the observed row is used. A year marked "Imputed by EIA" had no observed residential row.
• Rows that split one utility across balancing authorities are summed. Rows marked as adjustments are dropped. Behind-the-meter filings, such as rooftop-solar companies, are dropped.
• There is no monthly series. EIA-861 is an annual filing, and the 2025 file is the latest final release.

UtilityCents is not affiliated with the Energy Information Administration or with any utility. The filings are public survey responses.