States › South Dakota › Sioux Valley SW Elec Coop
electric cooperative · EIA utility 17267
Sioux Valley SW Elec Coop
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.
Sioux Valley SW Elec Coop is an electric cooperative that reported 25,583 residential customers in South Dakota and 1 other state on Form EIA-861 for 2024, with a service territory that touches 15 counties.
Its average residential price that year was 12.87¢ per kilowatthour, about the same as the South Dakota average of 12.86¢ and 22% 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 $172.31 a month on average use of 1,339 kWh a month. Across South Dakota the average bill was $127.81 on 994 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 64.4 minutes per customer with major event days included and 64.4 minutes with them excluded, calculated under IEEE 1366 standard. The median among South Dakota utilities reporting was 73.7 minutes with major event days; this utility's figure is 13% below that median.
The average price is up 16.3% on 2019, against up 11.3% for South Dakota as a whole, and up 7.5% on 2023.
Compared with South Dakota, the US and other electric cooperatives
| Measure, 2024 | This utility | Electric cooperatives, US median | South Dakota | United States |
|---|---|---|---|---|
| Average residential price per kWh | 12.87¢ | 13.74¢ | 12.86¢ | 16.48¢ |
| Average monthly residential bill | $172.31 | $149.95 | $127.81 | $142.26 |
| Average monthly use, kWh | 1,339 | 1,126 | 994 | 863 |
| Residential price change, 1 year | +7.5% | — | +4.4% | +3.0% |
| Residential price change, 5 years | +16.3% | — | +11.3% | +26.7% |
| SAIDI, all events (minutes) | 64.4 | 263.0 | 73.7 median | 184.5 median |
| SAIDI, without major event days | 64.4 | 147.0 | 65.1 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 8 filings by electric cooperatives in South Dakota, the median price was 13.29¢. In South Dakota this utility's price ranks 8 of 20, counting from the highest.
Average price by year
Sioux Valley SW Elec CoopSouth Dakota averageUS average
Year by year
| Year | ¢ per kWh | South Dakota ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2024 | 12.87¢ | 12.86¢ | $172.31 | 1,339 | 25,583 | 924 GWh |
| 2023 | 11.97¢ | 12.32¢ | $169.46 | 1,416 | 25,129 | 933.3 GWh |
| 2022 | 12.06¢ | 12.09¢ | $172.31 | 1,428 | 24,508 | 896.8 GWh |
| 2021 | 12.15¢ | 12.22¢ | $168.94 | 1,391 | 23,905 | 868 GWh |
| 2020 | 11.50¢ | 11.75¢ | $166.63 | 1,449 | 23,462 | 855.4 GWh |
| 2019 | 11.07¢ | 11.55¢ | $164.78 | 1,488 | 22,972 | 849.3 GWh |
| 2018 | 11.06¢ | 11.59¢ | $166.81 | 1,509 | 22,462 | 836.7 GWh |
| 2017 | 11.12¢ | 11.77¢ | $157.51 | 1,417 | 21,950 | 791.4 GWh |
| 2016 | 10.90¢ | 11.47¢ | $155.33 | 1,426 | 21,377 | 766.3 GWh |
| 2015 | 10.82¢ | 11.08¢ | $154.89 | 1,431 | 20,473 | 734.6 GWh |
| 2014 | 10.57¢ | 10.47¢ | $161.42 | 1,527 | 20,200 | 740.6 GWh |
| 2013 | 10.60¢ | 10.26¢ | $160.97 | 1,518 | 19,864 | 711.9 GWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12.
Month by month
Sioux Valley SW Elec Coop (SD)South Dakota average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 25,583 | 411 GWh | 44% | $52,897,200 | 12.87¢ |
| Commercial | 2,935 | 55.7 GWh | 6% | $8,755,800 | 15.72¢ |
| Industrial | 668 | 457.3 GWh | 49% | $40,319,600 | 8.82¢ |
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: 941.9 GWh in total, of which 0% was its own net generation and 941.9 GWh was bought wholesale; summer peak demand 163 MW.
By state
| State | Residential customers | ¢ per kWh | State average ¢ | Monthly bill | SAIDI, all events |
|---|---|---|---|---|---|
| South Dakota | 22,213 | 12.94¢ | 12.86¢ | $160.31 | 71.4 |
| Minnesota | 3,370 | 12.61¢ | 15.45¢ | $251.38 | 20.2 |
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: 0.99 interruptions per customer with major event days, 0.99 without; CAIDI 65.3 minutes per interruption. EIA's South Dakota total across all reporting utilities was 84.7 minutes with major event days and 62.1 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 |
|---|---|---|---|---|---|
| 2024 | 64.4 | 64.4 | 0.99 | 0.99 | IEEE 1366 |
| 2023 | 68.2 | 68.2 | 1.76 | 1.76 | IEEE 1366 |
| 2022 | 768.9 | 104.6 | 2.34 | 1.44 | IEEE 1366 |
| 2021 | 124.2 | 92.4 | 1.32 | 1.07 | IEEE 1366 |
| 2020 | 83.6 | 74.5 | 3.10 | 2.43 | IEEE 1366 |
| 2019 | 1,350.9 | 87.5 | 2.65 | 0.95 | IEEE 1366 |
| 2018 | 178.4 | 104.7 | 3.50 | 2.51 | IEEE 1366 |
| 2017 | 170.0 | 82.8 | 1.88 | 1.59 | IEEE 1366 |
| 2016 | 118.8 | 118.8 | 1.38 | 1.38 | IEEE 1366 |
| 2015 | 143.0 | 143.0 | 1.17 | 1.17 | IEEE 1366 |
| 2014 | 164.8 | 161.4 | 1.14 | 1.13 | IEEE 1366 |
| 2013 | 551.0 | 90.6 | 4.53 | 3.42 | IEEE 1366 |
Counties in its service territory
- Lincoln County MN
- Murray County MN
- Nobles County MN
- Pipestone County MN
- Rock County MN
- Brookings County SD
- Deuel County SD
- Hamlin County SD
- Kingsbury County SD
- Lake County SD
- McCook County SD
- Miner County SD
- Minnehaha County SD
- Moody County SD
- Turner County SD
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 South Dakota
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Southeastern Electric Coop Inc | Cooperative | 20,160 | 12.41¢ | $139.98 | 71.3 | 71.3 |
| West River Electric Assn Inc | Cooperative | 18,423 | 14.25¢ | $127.85 | 43.5 | 43.5 |
| Black Hills Electric Coop, Inc | Cooperative | 9,227 | 14.76¢ | $163.70 | 228.7 | 102.0 |
| Central Electric Coop, Inc | Cooperative | 6,483 | 13.64¢ | $201.08 | — | — |
| Northern Electric Coop, Inc | Cooperative | 5,757 | 11.29¢ | $225.58 | 49.8 | 49.8 |
| Rosebud Electric Coop Inc | Cooperative | 4,856 | 10.63¢ | $116.13 | 111.6 | 95.0 |
| Dakota Energy Coop Inc | Cooperative | 3,224 | 15.30¢ | $246.15 | — | — |
| NorthWestern Energy | Investor-owned | 51,467 | 12.56¢ | $113.36 | 76.0 | 66.5 |
All South Dakota utilities · Electric cooperatives nationwide
Questions and answers
How much does electricity cost from Sioux Valley SW Elec Coop?
Residential customers paid an average of 12.87¢ 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 South Dakota?
The South Dakota average residential price in 2024 was 12.86¢ and the US average 16.48¢; Sioux Valley SW Elec Coop was about the same as the state figure. Among 20 utility filings with a bundled residential price in South Dakota, it had the 8th highest.
What is the average Sioux Valley SW Elec Coop bill?
$172.31 a month in 2024, on average residential use of 1,339 kWh a month (annual revenue and sales divided by customers and by twelve). The South Dakota average was $127.81 on 994 kWh.
How reliable is Sioux Valley SW Elec Coop service?
It reported 64.4 minutes of interruption per customer (SAIDI) including major event days and 64.4 minutes excluding them, with 0.99 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Sioux Valley SW Elec Coop price rising?
The average residential price was up 7.5% in 2024 compared with 2023 and up 16.3% compared with 2019.
Which counties does Sioux Valley SW Elec Coop serve?
Its Form EIA-861 service territory lists 15 counties, including Lincoln County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN and Brookings County, SD. 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 "Sioux Valley SW Elec Coop", utility number 17267. Monthly utility figures are from the Form EIA-861M sample. 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 30 Sep 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.