Southwest Mississippi E P A electricity rates
Electric cooperative · Mississippi · SERC region · MISO
Southwest Mississippi E P A is a member-owned electric cooperative, so its customers own it and elect its board, serving 23,095 homes in Mississippi. Its residential customers pay an average of 16.15¢/kWh including fixed and delivery charges, 10% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend.
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Southwest Mississippi E P A bill estimates
| Monthly use | At average all-in rate |
|---|---|
| 500 kWh | $80.75 |
| 1,000 kWh | $161.50 |
| 1,500 kWh | $242.25 |
| 2,000 kWh | $323.00 |
Southwest Mississippi E P A rate history
2015–2025: +25% change in the average residential rate (12.24¢ → 15.34¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Southwest Mississippi E P A | Mississippi avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 2,736 | 531 | 266 |
| Outages per customer (SAIFI) | 2.41 | 1.34 | |
| Outage minutes excluding major storms | 1,832 | 288 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Southwest Mississippi E P A's counties, customers averaged 19 hr 44 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Wilkinson | 7,682 | 190 | 2,663 | 2025-05-07 |
| Franklin | 3,442 | 136 | 4,452 | 2025-04-02 |
| Jefferson | 3,097 | 112 | 2,103 | 2025-08-18 |
| Claiborne | 2,663 | 155 | 1,857 | 2025-02-16 |
| Amite | 2,236 | 162 | 2,205 | 2025-05-07 |
| Copiah | 1,292 | 136 | 6,199 | 2025-05-24 |
| Adams | 1,213 | 136 | 2,668 | 2025-05-27 |
| Lincoln | 927 | 121 | 10,241 | 2025-02-16 |
| Hinds | 676 | 98 | 8,883 | 2025-04-06 |
Southwest Mississippi E P A service area
Southwest Mississippi E P A serves 9 counties in Mississippi and 23 ZIP codes.
Adams, Amite, Claiborne, Copiah, Franklin, Hinds, Jefferson, Lincoln, Wilkinson
Cities: Vicksburg, Natchez, Brookhaven, Crystal Springs, Hazlehurst, Beechwood, Wesson, Fayette, Centreville, Port Gibson, Morgantown
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Customers with daily usage data online | 23,095 |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
Southwest Mississippi E P A at a glance
| Ownership | Electric cooperative |
| Services | Distribution |
| Commercial rate | 14.78¢/kWh |
| Industrial rate | 9.52¢/kWh |
| Retail revenue (2025) | $64,992,700 |
| Electricity sold (2025) | 482,335 MWh |
| Peak demand | 101 MW summer · 134 MW winter |
| Line losses | 6.4% |
| Balancing authority | MISO |
| EIA utility ID | 17683 |
Other utilities in Mississippi
Frequently asked questions
What is Southwest Mississippi E P A's electricity rate?
Southwest Mississippi E P A residential customers pay an average of 16.15¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 9% above the Mississippi average of 14.77¢ and 10% below the U.S. average.
What is the average Southwest Mississippi E P A electric bill?
About $160 a month. The average Southwest Mississippi E P A home uses 993 kWh a month. At 1,000 kWh the bill would be about $161.
How many customers does Southwest Mississippi E P A have?
Southwest Mississippi E P A serves 23,095 residential customers and 25,366 customers in total in Mississippi, across 9 counties.
How reliable is Southwest Mississippi E P A?
In 2025, the average Southwest Mississippi E P A customer was without power for 45 hr 36 min (SAIDI) over undefined interruptions (SAIFI), including major storms. Excluding major event days it was 30 hr 32 min. The Mississippi average was 8 hr 51 min and the U.S. average 4 hr 26 min.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Southwest Mississippi E P A before making decisions.