States › North Dakota › Mountrail-Williams Elec Coop
electric cooperative · EIA utility 20413
Mountrail-Williams 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.
In its Form EIA-861 filing for 2024, Mountrail-Williams Elec Coop, an electric cooperative, reported 11,405 residential customers in North Dakota, with a service territory that touches 6 counties.
Its average residential price that year was 7.24¢ per kilowatthour, 37% below the North Dakota average of 11.51¢ and 56% 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 $102.95 a month on average use of 1,422 kWh a month. Across North Dakota the average bill was $118.38 on 1,029 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 282.3 minutes per customer with major event days included and 146.8 minutes with them excluded, calculated under IEEE 1366 standard. The median among North Dakota utilities reporting was 95.7 minutes with major event days; this utility's figure is 195% above that median.
The average price is little changed on 2019, against up 11.7% for North Dakota as a whole, and little changed on 2023. EIA's early release for 2025, which has not been fully edited, shows 7.25¢.
Compared with North Dakota, the US and other electric cooperatives
| Measure, 2024 | This utility | Electric cooperatives, US median | North Dakota | United States |
|---|---|---|---|---|
| Average residential price per kWh | 7.24¢ | 13.74¢ | 11.51¢ | 16.48¢ |
| Average monthly residential bill | $102.95 | $149.95 | $118.38 | $142.26 |
| Average monthly use, kWh | 1,422 | 1,126 | 1,029 | 863 |
| Residential price change, 1 year | +0.8% | — | +4.5% | +3.0% |
| Residential price change, 5 years | +0.7% | — | +11.7% | +26.7% |
| SAIDI, all events (minutes) | 282.3 | 263.0 | 95.7 median | 184.5 median |
| SAIDI, without major event days | 146.8 | 147.0 | 93.4 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 14 filings by electric cooperatives in North Dakota, the median price was 10.80¢. In North Dakota this utility's price ranks 17 of 17, counting from the highest.
Average price by year
Mountrail-Williams Elec CoopNorth Dakota averageUS average
Year by year
| Year | ¢ per kWh | North Dakota ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 7.25¢ | 11.81¢ | $108.23 | 1,493 | 11,485 | 6.1 TWh |
| 2024 | 7.24¢ | 11.51¢ | $102.95 | 1,422 | 11,405 | 6.3 TWh |
| 2023 | 7.18¢ | 11.01¢ | $103.32 | 1,439 | 11,383 | 5.7 TWh |
| 2022 | 7.20¢ | 10.92¢ | $111.69 | 1,550 | 11,188 | 4.1 TWh |
| 2021 | 6.95¢ | 10.85¢ | $85.40 | 1,229 | 12,731 | 3.7 TWh |
| 2020 | 6.63¢ | 10.44¢ | $86.93 | 1,312 | 12,624 | 3.4 TWh |
| 2019 | 7.19¢ | 10.30¢ | $92.02 | 1,280 | 12,366 | 2.6 TWh |
| 2018 | 7.19¢ | 10.25¢ | $95.18 | 1,324 | 12,339 | 2.3 TWh |
| 2017 | 7.34¢ | 10.29¢ | $90.08 | 1,227 | 12,234 | 2.8 TWh |
| 2016 | 7.25¢ | 10.16¢ | $87.59 | 1,208 | 11,768 | 1.8 TWh |
| 2015 | 6.35¢ | 9.62¢ | $82.27 | 1,296 | 11,140 | 1.7 TWh |
| 2014 | 5.57¢ | 9.15¢ | $118.28 | 2,122 | 10,338 | 2 TWh |
| 2013 | 7.32¢ | 9.12¢ | $110.17 | 1,505 | 8,567 | 1 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Month by month
Mountrail-Williams Elec CoopNorth Dakota average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 11,405 | 194.6 GWh | 3% | $14,090,400 | 7.24¢ |
| Commercial | 2,651 | 1.6 TWh | 26% | $85,895,800 | 5.26¢ |
| Industrial | 4,987 | 4.5 TWh | 71% | $346,441,400 | 7.75¢ |
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: 6.4 TWh in total, of which 0% was its own net generation and 6.4 TWh was bought wholesale; summer peak demand 805 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: 1.29 interruptions per customer with major event days, 1.12 without; CAIDI 218.4 minutes per interruption. EIA's North Dakota total across all reporting utilities was 99.1 minutes with major event days and 84.2 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 |
|---|---|---|---|---|---|
| 2025 early release | 115.7 | 115.7 | 1.16 | 1.16 | IEEE 1366 |
| 2024 | 282.3 | 146.8 | 1.29 | 1.12 | IEEE 1366 |
| 2023 | 241.8 | 129.2 | 1.39 | 1.10 | IEEE 1366 |
| 2022 | 7,226.8 | 121.0 | 2.84 | 1.12 | IEEE 1366 |
Counties in its service territory
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 North Dakota
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Roughrider Electric Cooperativ | Cooperative | 11,183 | 10.24¢ | $124.70 | — | — |
| Northern Plains Electric Coop | Cooperative | 10,393 | 10.65¢ | $194.53 | 262.4 | 262.4 |
| Verendrye Electric Coop Inc | Cooperative | 14,336 | 10.70¢ | $137.13 | 36.7 | 36.7 |
| Capital Electric Coop, Inc | Cooperative | 19,530 | 12.31¢ | $124.53 | 37.2 | 37.2 |
| Nodak Electric Coop Inc | Cooperative | 20,803 | 12.08¢ | $175.93 | 108.2 | 108.2 |
| North Central Elec Coop, Inc | Cooperative | 6,061 | 10.90¢ | $201.99 | — | — |
| Dakota Valley Elec Coop Inc | Cooperative | 5,721 | 12.01¢ | $213.40 | 223.0 | 186.7 |
| McKenzie Electric Coop Inc | Cooperative | 5,407 | 7.86¢ | $134.10 | 256.9 | 209.7 |
All North Dakota utilities · Electric cooperatives nationwide
Questions and answers
How much does electricity cost from Mountrail-Williams Elec Coop?
Residential customers paid an average of 7.24¢ 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 North Dakota?
The North Dakota average residential price in 2024 was 11.51¢ and the US average 16.48¢; Mountrail-Williams Elec Coop was 37% below the state figure. Among 17 utility filings with a bundled residential price in North Dakota, it had the 17th highest.
What is the average Mountrail-Williams Elec Coop bill?
$102.95 a month in 2024, on average residential use of 1,422 kWh a month (annual revenue and sales divided by customers and by twelve). The North Dakota average was $118.38 on 1,029 kWh.
How reliable is Mountrail-Williams Elec Coop service?
It reported 282.3 minutes of interruption per customer (SAIDI) including major event days and 146.8 minutes excluding them, with 1.29 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Mountrail-Williams Elec Coop price rising?
The average residential price was little changed in 2024 compared with 2023 and little changed compared with 2019. EIA's early, not fully edited release for 2025 shows 7.25¢.
Which counties does Mountrail-Williams Elec Coop serve?
Its Form EIA-861 service territory lists 6 counties: Burke County, ND, Divide County, ND, McLean County, ND, Mountrail County, ND, Ward County, ND and Williams County, ND. 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 "Mountrail-Williams Elec Coop", utility number 20413; the 2025 row is from EIA's early release. 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 1 Oct 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.