Columbia Power System: electric rates and average bill
Columbia Power System is a city utility that serves 32,032 homes in Tennessee. In 2025, its average home used 1,110 kWh a month and paid $141.30 (12.7¢ per kWh), less than the Tennessee average of $156.03.
- City utility
- 32,032 homes
- EIA data, 2025
Columbia Power System at a glance
| Type of utility | City utility |
|---|---|
| Homes served in Tennessee | 32,032 |
| Average home bill | $141.30 a month (Tennessee average $156.03) |
| Average price | 12.7¢ per kWh (Tennessee average 13.2¢) |
| Average home use | 1,110 kWh a month (Tennessee average 1,180) |
| Business customers | 12.2¢ per kWh, average bill $577.10 a month (5,508 businesses; Tennessee business rates) |
| Power outages | 1.4 outages and 86 minutes without power for the average customer in a normal year; 1.9 outages and 142 minutes with major storms (fewer minutes than the middle Tennessee utility, 134 minutes) |
| Smart meters | 100% of home meters |
| Grid | SERC region; buys its power |
| Counties served | Maury, Williamson |
Price rank: Columbia Power System has the 33rd lowest average price of the 84 Tennessee utilities with 1,000 or more homes.
Other utilities in the same counties
These utilities also serve homes in one or more of the counties of Columbia Power System. Your address has one utility: it is on your bill.
| Utility | Homes | Average bill | Price per kWh |
|---|---|---|---|
| Nashville Electric ServiceBill calculator on this site | 424,808 | $146.00 | 14.0¢ |
| Middle Tennessee Electric (MTE)Bill calculator on this site | 311,520 | $161.57 | 12.5¢ |
| Duck River Electric Membership Corporation | 71,969 | $187.71 | 13.6¢ |
| City of Mt Pleasant | 3,538 | $164.38 | 13.7¢ |
Columbia Power System rates and your bill
This site does not have a bill calculator for Columbia Power System yet: we add a calculator only after we check every charge in the official rate schedule. The current rates are on the Columbia Power System rates page. The averages on this page come from the yearly report that each utility files with the U.S. Energy Information Administration (Form EIA-861, 2025 data), so they show the past year, not today's rates.
- Columbia Power System website
- State regulator: Tennessee Public Utility Commission
- The average electric bill in Tennessee, the average bill in each state and the ZIP code finder
Columbia Power System is the city-owned utility of Columbia: see the other utilities and bills in that city.
Do you want a Columbia Power System bill calculator? Tell us.
What is the average Columbia Power System electric bill (TN)?
In 2025, its average home used 1,110 kWh a month and paid $141.30 (12.7¢ per kWh), less than the Tennessee average of $156.03.
How often does the power go out with Columbia Power System (TN)?
In 2025, the average Columbia Power System customer had 1.4 outages and 86 minutes without power, not counting major storms (1.9 outages and 142 minutes with them).
utilityratecalc.com is not part of Columbia Power System. Source: EIA-861 data, 2025. The averages include all charges that the utility reports as revenue from homes that buy their power from it.