EIA data through August 2026 · updated 2026-10-29

Columbia Power System (TN) electricity rates

Columbia Power System (TN) (municipal) residential customers paid about 12.0¢ per kWh (2024 average) — an average bill of $131 for 1,088 kWh a month.

Avg. home price12.0¢per kWh
Residential customers31,166TN, 2024
Avg. monthly use1,088kWh
Commercial11.5¢per kWh
Industrial6.0¢per kWh

What a month costs with Columbia Power System (TN)

500 kWh / month$60
900 kWh / month$108
1,200 kWh / month$144

Monthly cost at the average price of 12.0¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.

Price trend

9¢12¢15¢18¢20222023202420252026Tennessee averageU.S. average 9¢12¢15¢18¢20222023202420252026Tennessee averageU.S. average
Tennessee averageU.S. average
Aug 202613.4¢per kWh
vs. 1 year ago+2.5%13.1¢
vs. 5 years ago+20.5%11.1¢
Record high15.1¢Mar 2026
Avg. home bill$2061,532 kWh, Aug
EIA forecast, East South Central14.7¢Dec 2027

Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the East South Central region, which includes Alabama, Kentucky, Mississippi, Tennessee.

EIA publishes monthly figures only for larger utilities; this one reports yearly, so the chart shows the state.

ZIP codes served

37014Arrington37024Brentwood37027Brentwood37046College Grove37062Fairview37064Franklin37065Franklin37067Franklin37068Franklin37069Franklin37135Nolensville37174Spring Hill37179Thompsons Station38401Columbia38402Columbia38451Culleoka38474Mount Pleasant38476Primm Springs38482Santa Fe38487Williamsport

Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.

Questions

What is Columbia Power System (TN)’s electricity rate?

About 12.0¢ per kWh for residential customers (2024 average, EIA-861), including fixed charges spread over usage.

What is the average Columbia Power System (TN) electric bill?

$131 a month in 2024, for an average of 1,088 kWh (EIA-861).

Is Columbia Power System (TN) cheaper than the Tennessee average?

Yes: 12.0¢ versus the Tennessee average of 13.4¢ (Aug 2026).