Mid-Yellowstone Electric Co-op electricity rates
Electric cooperative · Montana
Mid-Yellowstone Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 2,053 homes in Montana. Its residential customers pay an average of 16.35¢/kWh including fixed and delivery charges, 9% 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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Mid-Yellowstone Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $81.75 | $103.00 |
| 1,000 kWh | $163.50 | $167.50 |
| 1,500 kWh | $245.25 | $232.00 |
| 2,000 kWh | $327.00 | $281.50 |
*Farm, Residential, and Public Buildings (effective 2011-10-20, $38.50/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.
Mid-Yellowstone Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Farm, Residential, and Public Buildings | 2011-10-20 | $38.50 | 12.90¢ first 1,500 kWh, 9.90¢ first 5,000 kWh, 8.90¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Mid-Yellowstone Electric Co-op rate history
2015–2025: -3% change in the average residential rate (15.76¢ → 15.33¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2019 | Mid-Yellowstone Electric Co-op | Montana avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 207 | 285 | 266 |
| Outages per customer (SAIFI) | 2.22 | 1.33 | 1.34 |
| Average restoration time (CAIDI) | 94 min | — | — |
| Outage minutes excluding major storms | 207 | 136 | 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 Mid-Yellowstone Electric Co-op's counties, customers averaged 2 hr 32 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Rosebud | 170 | 16 | 1,172 | 2025-12-19 |
| Yellowstone | 168 | 40 | 7,083 | 2025-04-17 |
| Big Horn | 100 | 7 | 1,779 | 2025-04-17 |
| Custer | 24 | 13 | 1,486 | 2025-02-20 |
| Treasure | 0 | 0 | 0 | 2025-01-01 |
Mid-Yellowstone Electric Co-op service area
Mid-Yellowstone Electric Co-op serves 5 counties in Montana and 8 ZIP codes.
Big Horn, Custer, Rosebud, Treasure, Yellowstone
Cities: Crow Agency
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
Mid-Yellowstone Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | — |
| Retail revenue (2025) | $4,278,000 |
| Electricity sold (2025) | 27,912 MWh |
| Balancing authority | WAUW |
| EIA utility ID | 12463 |
Other utilities in Montana
Frequently asked questions
What is Mid-Yellowstone Electric Co-op's electricity rate?
Mid-Yellowstone Electric Co-op residential customers pay an average of 16.35¢ 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 18% above the Montana average of 13.84¢ and 9% below the U.S. average.
What is the average Mid-Yellowstone Electric Co-op electric bill?
About $185 a month. The average Mid-Yellowstone Electric Co-op home uses 1,133 kWh a month. At 1,000 kWh the bill would be about $164.
How many customers does Mid-Yellowstone Electric Co-op have?
Mid-Yellowstone Electric Co-op serves 2,053 residential customers in Montana, across 5 counties.
How reliable is Mid-Yellowstone Electric Co-op?
In 2019, the average Mid-Yellowstone Electric Co-op customer was without power for 3 hr 27 min (SAIDI) over 2.22 interruptions (SAIFI), including major storms. Excluding major event days it was 3 hr 27 min. The Montana average was 4 hr 45 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 Mid-Yellowstone Electric Co-op before making decisions.