Sumter Electric Coop, Inc
Cooperative electric utility · Florida · #135 of 3,199 U.S. utilities by customers · EIA utility #18304
Sumter Electric Coop, Inc is a cooperative electric utility serving 264,730 customers in Florida. In 2025 it sold 4,300 gigawatt-hours of electricity for $606.06M in revenue, an average realized rate of 14.09¢ per kWh across all customer classes and 14.98¢ per kWh for residential customers. Its reported service territory covers 7 counties. EIA records its activities as: transmission, buying transmission, distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 240,241 | 2,912 | $436.21M | 14.98¢ | |
| Commercial | 23,015 | 318 | $60.42M | 18.97¢ | |
| Industrial | 1,474 | 1,069 | $109.42M | 10.23¢ | |
| Total | 264,730 | 4,300 | $606.06M | 14.09¢ |
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 (1,010 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 222,054 | 3,625 | $419.66M | 12.57¢ |
| 2022 | 230,909 | 3,833 | $524.37M | 14.67¢ |
| 2023 | 240,818 | 3,892 | $468.32M | 13.04¢ |
| 2024 | 252,367 | 4,145 | $504.40M | 13.09¢ |
| 2025 | 264,730 | 4,300 | $606.06M | 14.98¢ |
Reliability (2025)
Average outage time (SAIDI): 69 minutes per customer per year
Average outages (SAIFI): 0.99 per customer
Average restoration time (CAIDI): 69 minutes
As reported for Florida under the Other standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 4,436 GWh
Winter peak demand: 961 MW
Energy losses: 2.9% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 99.8% of 264,730 meters
Customer-sited generation (net metering): 6,967 installations, 42.9 MW of capacity
Counties served
Citrus, FLHernando, FLLake, FLLevy, FLMarion, FLPasco, FLSumter, FL
Other large utilities in Florida
- Florida Power & Light Co - 6,013,740 customers, residential 14.62¢
- Duke Energy Florida, LLC - 2,037,985 customers, residential 18.36¢
- Tampa Electric Co - 861,413 customers, residential 17.32¢
- JEA - 540,950 customers, residential 13.84¢
- Orlando Utilities Comm - 288,492 customers, residential 13.22¢
- Lee County Electric Coop, Inc - (FL) - 267,019 customers, residential 14.20¢
- Withlacoochee River Elec Coop - 255,506 customers, residential 13.70¢
- Clay Electric Cooperative, Inc - (FL) - 197,309 customers, residential 14.02¢
All Florida utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #18304 in the EIA frame.