Knoxville Utilities Board
Municipal electric utility · Tennessee · #145 of 3,199 U.S. utilities by customers · EIA utility #10421
Knoxville Utilities Board is a municipal electric utility serving 222,350 customers in Tennessee. In 2025 it sold 5,997 gigawatt-hours of electricity for $728.31M in revenue, an average realized rate of 12.14¢ per kWh across all customer classes and 13.83¢ per kWh for residential customers. Its reported service territory covers 7 counties. EIA records its activities as: distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 196,674 | 2,617 | $361.99M | 13.83¢ | |
| Commercial | 25,652 | 2,345 | $309.65M | 13.21¢ | |
| Industrial | 24 | 1,035 | $56.67M | 5.47¢ | |
| Total | 222,350 | 5,997 | $728.31M | 12.14¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (1,109 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 210,355 | 5,732 | $552.44M | 10.86¢ |
| 2022 | 212,691 | 5,869 | $633.91M | 12.21¢ |
| 2023 | 216,175 | 5,685 | $607.82M | 12.28¢ |
| 2024 | 219,297 | 5,881 | $647.91M | 12.54¢ |
| 2025 | 222,350 | 5,997 | $728.31M | 13.83¢ |
Reliability (2025)
Average outage time (SAIDI): 274 minutes per customer per year
Average outages (SAIFI): 1.26 per customer
Average restoration time (CAIDI): 217 minutes
As reported for Tennessee under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 0.0 GWh
Wholesale power purchased: 6,190 GWh
Winter peak demand: 1,319 MW
Energy losses: 3.1% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 99.6% of 224,672 meters
Counties served
Anderson, TNBlount, TNGrainger, TNJefferson, TNKnox, TNSevier, TNUnion, TN
Other large utilities in Tennessee
- Nashville Electric Service - 470,927 customers, residential 14.04¢
- City of Memphis - (TN) - 429,095 customers, residential 13.24¢
- Middle Tennessee E M C - 348,660 customers, residential 12.47¢
- City of Chattanooga - (TN) - 202,061 customers, residential 12.92¢
- Volunteer Electric Coop - 129,770 customers, residential 13.08¢
- Cumberland Elec Member Corp - 113,734 customers, residential 13.76¢
- City of Clarksville - (TN) - 86,998 customers, residential 13.67¢
- Duck River Elec Member Corp - 86,055 customers, residential 13.59¢
All Tennessee utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #10421 in the EIA frame.