Tennessee · Municipal
Columbia Power System - (TN)
12.73¢ per kWh, bundled, EIA-861 2025. Average bill $141.30 at 1,109.6 kWh a month, across 32,032 customers on that row.
Tennessee averaged 13.22¢/kWh and $156.03 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 32,032, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$127.30
12.73¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 10.14¢ | $123.12 | 1,214.5 | 21,999 |
| 2016 | 10.47¢ | $126.06 | 1,204.3 | 22,462 |
| 2017 | 10.85¢ | $121.28 | 1,117.7 | 23,198 |
| 2018 | 10.75¢ | $134.08 | 1,246.9 | 23,968 |
| 2019 | 10.84¢ | $127.53 | 1,176.9 | 24,914 |
| 2020 | 10.69¢ | $114.60 | 1,071.9 | 26,874 |
| 2021 | 10.99¢ | $121.81 | 1,107.9 | 27,949 |
| 2022 | 12.12¢ | $135.77 | 1,119.9 | 28,917 |
| 2023 | 11.91¢ | $121.81 | 1,023.1 | 30,374 |
| 2024 | 12.00¢ | $130.63 | 1,088.2 | 31,166 |
| 2025 | 12.73¢ | $141.30 | 1,109.6 | 32,032 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Maury, Williamson.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool