Southwestern Electric Power Co
Investor Owned electric utility · Louisiana · #70 of 3,199 U.S. utilities by customers · EIA utility #17698
Southwestern Electric Power Co is a investor owned electric utility serving 556,313 customers in Arkansas, Louisiana, Texas. In 2025 it sold 17,160 gigawatt-hours of electricity for $1.83B in revenue, an average realized rate of 10.66¢ per kWh across all customer classes and 13.10¢ per kWh for residential customers. Its reported service territory covers 50 counties. EIA records its activities as: generation, transmission, buying transmission, distribution, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 473,880 | 6,276 | $822.12M | 13.10¢ | |
| Commercial | 75,931 | 5,729 | $620.37M | 10.83¢ | |
| Industrial | 6,502 | 5,154 | $387.04M | 7.51¢ | |
| Total | 556,313 | 17,160 | $1.83B | 10.66¢ |
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 (1,104 kWh/month).
Operations by state
| State | Customers | Sales (GWh) | Residential rate |
|---|---|---|---|
| Louisiana | 234,765 | 6,443 | 13.85¢ |
| Texas | 192,139 | 7,224 | 12.60¢ |
| Arkansas | 129,409 | 3,493 | 12.14¢ |
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 546,238 | 16,452 | $1.93B | 13.45¢ |
| 2022 | 551,152 | 17,519 | $1.94B | 13.04¢ |
| 2023 | 552,064 | 16,895 | $1.68B | 12.23¢ |
| 2024 | 554,134 | 16,405 | $1.65B | 12.60¢ |
| 2025 | 556,313 | 17,160 | $1.83B | 13.10¢ |
Reliability (2025)
Average outage time (SAIDI): 467 minutes per customer per year
Average outages (SAIFI): 2.98 per customer
Average restoration time (CAIDI): 157 minutes
As reported for Texas 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: 17,013 GWh
Wholesale power purchased: 7,937 GWh
Winter peak demand: 4,618 MW
Energy losses: 2.0% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 99.6% of 561,234 meters
Customer-sited generation (net metering): 3,123 installations, 41.0 MW of capacity
Counties served
Benton, ARBienville, LABossier, LABowie, TXCaddo, LACamp, TXCarroll, ARCass, TXChildress, TXCollingsworth, TXDeSoto, LADonley, TXFranklin, TXGrant, LAGray, TXGregg, TXHall, TXHarrison, TXHempstead, ARHopkins, TXHoward, ARLafayette, ARLittle River, ARLogan, ARMarion, TXMiller, ARMorris, TXNatchitoches, LAPanola, TXPike, ARPolk, ARRains, TXRed River, LARed River, TXRusk, TXSabine, LAScott, ARSebastian, ARSevier, ARShelby, TXSmith, TXTitus, TXUpshur, TXVan Zandt, TXVernon, LAWashington, ARWebster, LAWheeler, TXWinn, LAWood, TX
Other large utilities in Louisiana
- Entergy Louisiana LLC - 1,113,665 customers, residential 11.90¢
- Cleco Power LLC - 295,892 customers, residential 14.26¢
- Entergy New Orleans, LLC - 208,895 customers, residential 13.20¢
- Dixie Electric Membership Corp - (LA) - 119,759 customers, residential 13.53¢
- Southwest Louisiana E M C - 118,774 customers, residential 11.57¢
- City of Lafayette - (LA) - 73,039 customers, residential 11.51¢
- Washington-St Tammany E C, Inc - 55,752 customers, residential 11.04¢
- Beauregard Electric Coop, Inc - 44,928 customers, residential 13.14¢
All Louisiana utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #17698 in the EIA frame.