Butte Electric Co-op electricity rates
Electric cooperative · South Dakota
Butte Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 7,472 homes in South Dakota. Its residential customers pay an average of 16.12¢/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. This utility files EIA's short form, which reports total sales only, so the rate covers all customer classes.
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Butte Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $80.60 | $57.50 |
| 1,000 kWh | $161.20 | $82.50 |
| 1,500 kWh | $241.80 | $107.50 |
| 2,000 kWh | $322.40 | $132.50 |
*Residential- Demand (effective 2014-01-01, $32.50/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Butte Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential- Demand | 2014-01-01 | $32.50 | 5.00¢ |
| Residential- Seasonal | 2014-01-01 | $32.50 | 10.65¢ |
| Residential All-Electric Metered Heat | 2014-01-01 | $32.50 | 6.00¢ |
| Residential All-Electric | 2014-01-01 | $32.50 | 10.65¢ |
| Residential | 2014-01-01 | $32.50 | 10.65¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Butte Electric Co-op rate history
2015–2025: +16% change in the average residential rate (13.13¢ → 15.19¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2019 | Butte Electric Co-op | South Dakota avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 48 | 257 | 266 |
| Outages per customer (SAIFI) | 0.64 | 1.24 | 1.34 |
| Average restoration time (CAIDI) | 74 min | — | — |
| Outage minutes excluding major storms | 48 | 63 | 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 Butte Electric Co-op's counties, customers averaged 8 hr 55 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Lawrence | 684 | 33 | 13,759 | 2025-11-13 |
| Meade | 505 | 34 | 10,065 | 2025-11-13 |
| Butte | 135 | 8 | 3,573 | 2025-11-13 |
Butte Electric Co-op service area
Butte Electric Co-op serves 3 counties in South Dakota and 1 ZIP codes.
Butte, Lawrence, Meade
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Homes on time-based rates | 19 |
| Net-metered solar homes | 0 reported |
Butte Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | — |
| Retail revenue (2025) | $17,606,000 |
| Electricity sold (2025) | 115,883 MWh |
| Balancing authority | WACM |
| EIA utility ID | 2655 |
Other utilities in South Dakota
Frequently asked questions
What is Butte Electric Co-op's electricity rate?
Butte Electric Co-op residential customers pay an average of 16.12¢ 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 14% above the South Dakota average of 14.20¢ and 10% below the U.S. average.
What is the average Butte Electric Co-op electric bill?
About $208 a month. The average Butte Electric Co-op home uses 1,292 kWh a month. At 1,000 kWh the bill would be about $161.
How many customers does Butte Electric Co-op have?
Butte Electric Co-op serves 7,472 residential customers in South Dakota, across 3 counties.
How reliable is Butte Electric Co-op?
In 2019, the average Butte Electric Co-op customer was without power for 48 min (SAIDI) over 0.64 interruptions (SAIFI), including major storms. Excluding major event days it was 48 min. The South Dakota average was 4 hr 17 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 Butte Electric Co-op before making decisions.