Full service
13.87¢
per kWh, 2025 average revenue
$190.03 / month at 1,371 kWh
Price +7.7% from 2024
Cooperative · 26,360 residential customers · South Dakota
Why is my Sioux Valley SW Elec Coop electric bill so high?
EIA respondent: Sioux Valley SW Elec Coop. Reviewed October 14, 2026.
In 2025, Sioux Valley SW Elec Coop reported 26,360 residential full service customers under the EIA name Sioux Valley SW Elec Coop. Average revenue was 13.87¢ per kWh. The average monthly bill in that filing was $190.03 for 1,371 kWh.
13.87¢ is above South Dakota's 2025 statewide residential average of 13.32¢. In July 2026 the state residential price was 15.37¢, versus 14.52¢ a year earlier (+5.8%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions.
From 2024 to 2025, the average monthly bill for full service changed +10.3%. Average use changed +2.4% and average price changed +7.7%. Holding the 2024 price fixed, the usage change accounts for $4.11 a month. The price change, applied to 2025 usage, accounts for $13.64.
EIA Form 861, 2025 final · Reviewed October 14, 2026
EIA Electric Power Monthly, Table 5.6.A · Reviewed October 14, 2026
The rate on the record
Cooperative rates are often set by the co-op board. Needs verification. Average revenue per kilowatt-hour is total residential revenue divided by residential sales. It is not a tariff schedule.
| Service | Customers | Price | Monthly use | Monthly bill | Vs 2024 price |
|---|---|---|---|---|---|
| Full service | 26,360 | 13.87¢ | 1,371 kWh | $190.03 | +7.7% |
EIA-861 sales to ultimate customers, 2025 final, compared with 2024 · Reviewed October 14, 2026
By state
| State | Service | Customers | Price | Monthly bill |
|---|---|---|---|---|
| SD | Full service | 22,989 | 13.94¢ | $176.42 |
| MN | Full service | 3,371 | 13.54¢ | $282.82 |
Audit the full service average
Revenue 60,109.4 thousand dollars. Sales 433,532 MWh. Customers 26,360. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Why the bill spikes
Season
The 2025 monthly average in South Dakota was 984 kWh. A hot or cold month can sit far from that. Compare kilowatt-hours with the same month last year before you blame the rate.
EIA-861 average bill file, 2025 · Reviewed October 14, 2026
A rate change
The full service average moved +7.7% from 2024. That is not the same thing as a new commission order. South Dakota Public Utilities Commission is the public docket desk.
South Dakota Public Utilities Commission · Reviewed October 14, 2026
Fuel and rider charges
Retail prices bundle generation, delivery, and other costs. A fuel adjustment or rider can move the total without a new base-rate case. The rider names on a Sioux Valley SW Elec Coop bill need verification.
EIA, prices and factors affecting electricity prices · Reviewed October 14, 2026
Time of use
EIA's 2025 dynamic-pricing schedule shows residential time-of-use activity, with 683 residential customers enrolled in dynamic pricing programs.
EIA-861 dynamic pricing, 2025 · Reviewed October 14, 2026
Estimated reads
Needs verification If the statement says the read is estimated, the next actual read can true the account up or down. The rule is in the utility's tariff, which is not stored here.
Data-center load
National demand is rising, and EIA points to large computing facilities. There is no published dollar line that isolates data centers on a Sioux Valley SW Elec Coop residential bill. Needs verification
EIA press release, January 13, 2026 · Reviewed October 14, 2026
Rate cases and hikes
Needs verification No rate case for Sioux Valley SW Elec Coop has been reviewed for this page. Orders and pending dockets are public at South Dakota Public Utilities Commission. Investor-owned base rates are usually set in a public docket. Municipal and cooperative rates may be set by a city or a co-op board instead. Which body sets this utility's rates needs verification.
South Dakota Public Utilities Commission · Reviewed October 14, 2026
Assistance
LIHEAP helps with home energy bills. Start with the federal program page and the state contact list. A Sioux Valley SW Elec Coop discount, budget-billing plan, or medical baseline needs verification.
LIHEAP · Reviewed October 14, 2026
How to lower the bill
- Read kilowatt-hours first. If use is up, the dollar total can rise on an unchanged rate.
- Check whether the read is actual or estimated. The true-up rule needs verification in the tariff.
- If a supplier or aggregator is also on the account, add that charge to the utility charge.
- Ask about budget billing and an income-qualified discount. Eligibility needs verification.
- If you are on time-of-use, move flexible load out of the expensive window. Confirm the window on the tariff.
Full service at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $69.35 |
| 750 kWh | $104.03 |
| 1,000 kWh | $138.70 |
| 1,500 kWh | $208.05 |
| 2,000 kWh | $277.40 |
Usage times the average price. At very low use, a real bill is often higher because a fixed customer charge does not shrink. The tariff needs verification.
Questions people ask
Why is my Sioux Valley SW Elec Coop electric bill so high?
In 2025, Sioux Valley SW Elec Coop reported 26,360 residential full service customers under the EIA name Sioux Valley SW Elec Coop. Average revenue was 13.87¢ per kWh. The average monthly bill in that filing was $190.03 for 1,371 kWh. 13.87¢ is above South Dakota's 2025 statewide residential average of 13.32¢. In July 2026 the state residential price was 15.37¢, versus 14.52¢ a year earlier (+5.8%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions. From 2024 to 2025, the average monthly bill for full service changed +10.3%. Average use changed +2.4% and average price changed +7.7%. Holding the 2024 price fixed, the usage change accounts for $4.11 a month. The price change, applied to 2025 usage, accounts for $13.64.
What was Sioux Valley SW Elec Coop's average residential rate?
Using 2025 EIA-861 revenue and sales, the full service average was 13.87¢ per kWh. Average use was 1,371 kWh a month and the average bill was $190.03. This folds in whatever customer charges and riders the utility reported. It is not the marginal rate on your tariff.
Did Sioux Valley SW Elec Coop raise rates?
The full service average price changed +7.7% from 2024 to 2025, from 12.87¢ to 13.87¢. That is average revenue per kilowatt-hour, not a commission order. No 2025–2026 order for this utility was retrieved for this page. A separate rider can still move a single month.
What bill assistance can Sioux Valley SW Elec Coop customers ask about?
LIHEAP is the federal program for home energy bills (https://www.acf.hhs.gov/ocs/programs/liheap). Sioux Valley SW Elec Coop may also offer an income-qualified discount, budget billing, or a medical baseline. The current offer, income cutoff, and how to apply need verification with the state LIHEAP office and South Dakota Public Utilities Commission.
Are data centers why this bill went up?
Large computing load is raising U.S. electricity demand, and regulators can later recover new generation and wires costs from customers. EIA has not published a dollar line that isolates data centers on this utility's residential bill. That pass-through needs verification.