Clinton Combined Utility Sys
Municipal electric utility · South Carolina · #1,612 of 3,199 U.S. utilities by customers · EIA utility #3804
Clinton Combined Utility Sys is a municipal electric utility serving 4,504 customers in South Carolina. In 2025 it sold 103 gigawatt-hours of electricity for $15.94M in revenue, an average realized rate of 15.50¢ per kWh across all customer classes and — per kWh for residential customers. Its reported service territory covers 1 counties.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Total | 4,504 | 103 | $15.94M | 15.50¢ |
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 (— kWh/month).
This utility files the EIA-861S short form, which reports totals only - no breakdown by customer class is published for it.
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 4,117 | 102 | $13.14M | — |
| 2022 | 4,163 | 101 | $14.65M | — |
| 2023 | 4,282 | 100 | $11.82M | — |
| 2024 | 4,324 | 102 | $15.70M | — |
| 2025 | 4,504 | 103 | $15.94M | — |
Meters & rooftop solar (2025)
Smart (AMI) meters: 93.3% of 4,504 meters
Counties served
Laurens, SC
Other large utilities in South Carolina
- Dominion Energy South Carolina, Inc - 824,270 customers, residential 16.41¢
- South Carolina Public Service Authority - 219,897 customers, residential 12.91¢
- Berkeley Electric Coop Inc - 138,073 customers, residential 16.32¢
- Horry Electric Coop Inc - 103,949 customers, residential 13.83¢
- Palmetto Electric Coop Inc - 81,863 customers, residential 14.39¢
- Blue Ridge Electric Coop Inc - (SC) - 74,014 customers, residential 19.82¢
- York Electric Coop Inc - 71,541 customers, residential 13.68¢
- Laurens Electric Coop, Inc - 66,192 customers, residential 15.62¢
All South Carolina utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #3804 in the EIA frame.