States › Mississippi › Southwest Mississippi E P A
electric cooperative · EIA utility 17683
Southwest Mississippi E P A
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
Southwest Mississippi E P A is an electric cooperative that reported 23,153 residential customers in Mississippi on Form EIA-861 for 2024, with a service territory that touches 9 counties.
Its average residential price that year was 15.03¢ per kilowatthour, 12% above the Mississippi average of 13.39¢ and 8.8% below the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $146.41 a month on average use of 974 kWh a month. Across Mississippi the average bill was $154.83 on 1,156 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 3,672.1 minutes per customer with major event days included and 1,750.4 minutes with them excluded, calculated under IEEE 1366 standard. The median among Mississippi utilities reporting was 324.6 minutes with major event days; this utility's figure is 1031% above that median.
The average price is up 21.3% on 2019, against up 18.8% for Mississippi as a whole, and up 5.9% on 2023. EIA's early release for 2025, which has not been fully edited, shows 15.34¢.
Compared with Mississippi, the US and other electric cooperatives
| Measure, 2024 | This utility | Electric cooperatives, US median | Mississippi | United States |
|---|---|---|---|---|
| Average residential price per kWh | 15.03¢ | 13.74¢ | 13.39¢ | 16.48¢ |
| Average monthly residential bill | $146.41 | $149.95 | $154.83 | $142.26 |
| Average monthly use, kWh | 974 | 1,126 | 1,156 | 863 |
| Residential price change, 1 year | +5.9% | — | +1.2% | +3.0% |
| Residential price change, 5 years | +21.3% | — | +18.8% | +26.7% |
| SAIDI, all events (minutes) | 3,672.1 | 263.0 | 324.6 median | 184.5 median |
| SAIDI, without major event days | 1,750.4 | 147.0 | 238.2 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 23 filings by electric cooperatives in Mississippi, the median price was 13.16¢. In Mississippi this utility's price ranks 2 of 40, counting from the highest.
Average price by year
Southwest Mississippi E P AMississippi averageUS average
Year by year
| Year | ¢ per kWh | Mississippi ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 15.34¢ | 14.03¢ | $152.29 | 993 | 23,095 | 482.3 GWh |
| 2024 | 15.03¢ | 13.39¢ | $146.41 | 974 | 23,153 | 462.3 GWh |
| 2023 | 14.19¢ | 13.23¢ | $140.77 | 992 | 23,195 | 462.9 GWh |
| 2022 | 13.69¢ | 12.41¢ | $141.01 | 1,030 | 23,292 | 475.9 GWh |
| 2021 | 13.23¢ | 11.56¢ | $127.62 | 965 | 23,256 | 458.8 GWh |
| 2020 | 12.63¢ | 11.17¢ | $122.78 | 972 | 23,093 | 448.3 GWh |
| 2019 | 12.39¢ | 11.27¢ | $127.09 | 1,026 | 22,956 | 480.6 GWh |
| 2018 | 12.41¢ | 11.12¢ | $132.32 | 1,066 | 23,177 | 490.5 GWh |
| 2017 | 12.40¢ | 11.08¢ | $116.91 | 943 | 23,219 | 455.6 GWh |
| 2016 | 12.09¢ | 10.47¢ | $122.22 | 1,011 | 23,231 | 478.1 GWh |
| 2015 | 12.24¢ | 11.27¢ | $127.10 | 1,038 | 23,294 | 487.3 GWh |
| 2014 | 12.18¢ | 11.32¢ | $129.44 | 1,063 | 23,269 | 491.8 GWh |
| 2013 | 11.99¢ | 10.78¢ | $124.75 | 1,040 | 23,183 | 485.7 GWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 23,153 | 270.7 GWh | 59% | $40,677,400 | 15.03¢ |
| Commercial | 2,247 | 81.4 GWh | 18% | $11,065,500 | 13.59¢ |
| Industrial | 16 | 110.2 GWh | 24% | $10,637,000 | 9.65¢ |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 491.9 GWh in total, of which 0% was its own net generation and 491.9 GWh was bought wholesale; summer peak demand 101 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: —. EIA's Mississippi total across all reporting utilities was 567.1 minutes with major event days and 266.3 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 2,736.1 | 1,832.1 | — | — | IEEE 1366 |
| 2024 | 3,672.1 | 1,750.4 | — | — | IEEE 1366 |
| 2023 | 2,255.5 | 1,303.2 | — | — | IEEE 1366 |
| 2022 | 1,812.3 | 1,553.7 | — | — | IEEE 1366 |
| 2021 | 6,506.1 | 1,229.9 | — | — | IEEE 1366 |
| 2020 | 4,811.2 | 1,353.2 | — | — | IEEE 1366 |
| 2019 | 1,558.2 | 1,239.3 | — | — | IEEE 1366 |
| 2018 | 1,513.0 | 1,371.0 | — | — | IEEE 1366 |
| 2017 | 3,788.9 | 2,168.0 | — | — | IEEE 1366 |
| 2016 | 1,122.4 | 813.3 | — | — | IEEE 1366 |
| 2015 | 1,003.7 | 859.7 | — | — | IEEE 1366 |
| 2014 | 934.3 | 796.7 | — | — | IEEE 1366 |
Counties in its service territory
- Adams County
- Amite County
- Claiborne County
- Copiah County
- Franklin County
- Hinds County
- Jefferson County
- Lincoln County
- Wilkinson County
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Mississippi
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Tallahatchie Valley E P A | Cooperative | 21,493 | 12.41¢ | $136.06 | 487.8 | 363.6 |
| North East Mississippi EPA | Cooperative | 26,142 | 13.39¢ | $138.59 | 463.3 | 256.8 |
| Delta Electric Power Assn | Cooperative | 20,460 | 13.75¢ | $137.31 | 722.1 | 419.5 |
| Northcentral Mississippi E P A | Cooperative | 29,136 | 12.52¢ | $152.31 | 241.0 | 241.0 |
| Central Electric Power Assn | Cooperative | 30,905 | 12.22¢ | $155.32 | 808.4 | 321.4 |
| Magnolia Electric Power Assn | Cooperative | 31,070 | 15.00¢ | $164.75 | 1,809.6 | — |
| Pontotoc Electric Power Assn | Cooperative | 16,377 | 13.02¢ | $159.55 | — | — |
| Alcorn County Elec Power Assn | Cooperative | 14,965 | 12.92¢ | $154.72 | 2.5 | 2.5 |
All Mississippi utilities · Electric cooperatives nationwide
Questions and answers
How much does electricity cost from Southwest Mississippi E P A?
Residential customers paid an average of 15.03¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Mississippi?
The Mississippi average residential price in 2024 was 13.39¢ and the US average 16.48¢; Southwest Mississippi E P A was 12% above the state figure. Among 40 utility filings with a bundled residential price in Mississippi, it had the 2nd highest.
What is the average Southwest Mississippi E P A bill?
$146.41 a month in 2024, on average residential use of 974 kWh a month (annual revenue and sales divided by customers and by twelve). The Mississippi average was $154.83 on 1,156 kWh.
How reliable is Southwest Mississippi E P A service?
It reported 3,672.1 minutes of interruption per customer (SAIDI) including major event days and 1,750.4 minutes excluding them in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Southwest Mississippi E P A price rising?
The average residential price was up 5.9% in 2024 compared with 2023 and up 21.3% compared with 2019. EIA's early, not fully edited release for 2025 shows 15.34¢.
Which counties does Southwest Mississippi E P A serve?
Its Form EIA-861 service territory lists 9 counties, including Adams County, MS, Amite County, MS, Claiborne County, MS, Copiah County, MS, Franklin County, MS and Hinds County, MS. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "Southwest Mississippi E P A", utility number 17683; the 2025 row is from EIA's early release. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. All are US government works in the public domain. Page built 1 Oct 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.