Kilowatt Atlas

Electric cooperative

Sioux Valley Southwestern Electric Co-op Rates and Bills

Average rate and bill, service area, reliability and rate options for this utility, taken from its 2025 filing with the EIA.

Reviewed Data: EIA Form EIA-861, released October 7, 2026

Independent profile. Kilowatt Atlas is not affiliated with Sioux Valley Southwestern Electric Cooperative, does not use its logo or branding and cannot take payments, start service or look up accounts. Figures come from public federal data for 2025.

Residential customers

26 thousand

26,360 homes

Average price

13.87 cents

South Dakota average 13.32

Average bill

$190.03

Per month at 1,371 kWh

Price rank

9 of 12

Lowest to highest in South Dakota

Sioux Valley Southwestern Electric Cooperative rates and average bill

Sioux Valley Southwestern Electric Cooperative reported 26,360 residential customers on bundled service in 2025, using 1,371 kWh a month on average at 13.87 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 12 South Dakota utilities with at least 10,000 bundled residential customers, Sioux Valley Southwestern Electric Cooperative ranks 9 from the lowest price.

Sioux Valley Southwestern Electric Cooperative compared with South Dakota and the United States
AverageCents per kWhkWh per monthMonthly bill
Sioux Valley Southwestern Electric Cooperative13.871,371$190.03
South Dakota (all utilities)13.32984$131.10
United States17.23874$150.68

Figures cover all of Sioux Valley Southwestern Electric Cooperative's states together. A utility with a large territory can have different rates in different places.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

Service area

EIA lists the counties where Sioux Valley Southwestern Electric Cooperative has distribution equipment. That covers 15 counties in South Dakota, Minnesota. A county can be served by more than one utility, so confirm your address with the utility or your bill.

South Dakota (10 counties)

Brookings, Deuel, Hamlin, Kingsbury, Lake, McCook, Miner, Minnehaha, Moody, Turner

Minnesota (5 counties)

Lincoln, Murray, Nobles, Pipestone, Rock

Not sure who serves your address? Use find my electric company.

Reliability

For 2025, Sioux Valley Southwestern Electric Cooperative reported an average of 59 minutes without power per customer and 1.64 interruptions per customer, with major event days left out. The typical interruption lasted about 36 minutes. For comparison, the median state averaged 127 minutes of outage per customer.

Sioux Valley Southwestern Electric Cooperative had about 69 fewer minutes of outage per customer than the median state. The South Dakota figure across its utilities was 64 minutes. One interruption lasting 36 minutes and 1.64 interruptions a year per customer add up to the 59 minute total.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.

Rate options and rooftop solar

  • Time-of-use pricing. Sioux Valley Southwestern Electric Cooperative reports a residential time-of-use pricing program in its 2025 EIA filing, with about 683 residential customers enrolled in dynamic pricing programs of all kinds. Ask the utility which rate schedules you qualify for. How time-of-use rates work.
  • Rooftop solar and net metering. EIA shows 66 residential net-metered systems on the Sioux Valley Southwestern Electric Cooperative grid in 2025, with 1.2 megawatts of capacity. How net metering works.

Who owns and regulates it

Owned by the members it serves. An elected board sets the rates, and members may receive capital credits when the co-op has margins to return.

For questions about state consumer protections, see the South Dakota Public Utilities Commission.

Sioux Valley Southwestern Electric Cooperative is an electric cooperative based in South Dakota, and it also reports customers in 1 other state.

Sioux Valley Southwestern Electric Cooperative operates in the SPP power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.

Sioux Valley Southwestern Electric Cooperative compared with South Dakota

Of the 16 utilities listed for South Dakota, Sioux Valley Southwestern Electric Cooperative is the 3rd largest by homes, at roughly 5.2% of the state total. At $190.03 a month, an average Sioux Valley Southwestern Electric Cooperative home pays about $707 a year more than the South Dakota average of $131.10, and uses 386 kWh a month more. Sioux Valley Southwestern Electric Cooperative reports customers in 2 states, and this profile uses its largest, South Dakota, for comparisons. 66 of its residential customers use net metering, or 2.5 per 1,000 homes, against 1.4 for South Dakota as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in South Dakota with at least 1,000 residential customers and a reported price.

Other South Dakota utilities

Utilities in South Dakota close in size to Sioux Valley Southwestern Electric Cooperative
UtilityTypeHomesCents per kWh
Sioux Valley Southwestern Electric CooperativeCooperative26,36013.87
Black Hills PowerInvestor-owned69,80015.07
NorthWestern Energy South DakotaInvestor-owned51,78713.35
Southeastern Electric CooperativeCooperative20,95912.98
West River Electric AssociationCooperative18,97515.16
Watertown Municipal UtilitiesMunicipal11,7759.29

See every one on the electric companies in South Dakota page.

Official site and where to get help

Kilowatt Atlas is not Sioux Valley Southwestern Electric Cooperative and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

Sioux Valley Southwestern Electric Cooperative questions

What is the average residential electric rate for Sioux Valley Southwestern Electric Cooperative?

Sioux Valley Southwestern Electric Cooperative residential customers on bundled service paid an average of 13.87 cents per kWh in 2025, with average use of 1,371 kWh a month and an average bill of $190.03 (EIA Form EIA-861). The South Dakota average was 13.32 cents.

How many customers does Sioux Valley Southwestern Electric Cooperative have?

EIA reports about 26,360 residential customers for Sioux Valley Southwestern Electric Cooperative in 2025.

Who regulates Sioux Valley Southwestern Electric Cooperative?

Owned by the members it serves. An elected board sets the rates, and members may receive capital credits when the co-op has margins to return. See the regulator for South Dakota on the South Dakota state page.

How reliable is Sioux Valley Southwestern Electric Cooperative?

For 2025, Sioux Valley Southwestern Electric Cooperative reported an average of 59 minutes of outage per customer and 1.64 interruptions per customer, excluding major event days (IEEE 1366). Utilities measure outages in slightly different ways, so compare with care.

Related pages