County annual report · FIPS 38105
2021 Williams County, ND Power Outage Report
In 2021, customers in Williams County, ND went without power for an average of 2.9 hours, a total of 45K customer-hours (North Dakota average 1.0 hours). That ranks 8th worst of 51 North Dakota counties and 1892nd of 2,974 nationally.
Compared with ND, the US and 2020
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Williams County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 29, 2021 23:00 | June 8, 2021 23:00 | 10d | 5,395 | 13K |
| 2 | January 14, 2021 06:30 | January 24, 2021 08:45 | 10d 2h | 1,679 | 9,574 |
| 3 | June 10, 2021 23:45 | June 21, 2021 05:00 | 10d 5h | 1,165 | 7,590 |
| 4 | September 16, 2021 14:30 | September 26, 2021 14:30 | 10d | 1,147 | 2,391 |
| 5 | November 22, 2021 20:15 | November 23, 2021 01:45 | 5h 30m | 949 | 998 |
| 6 | April 28, 2021 16:00 | April 28, 2021 18:15 | 2h 15m | 592 | 617 |
| 7 | February 25, 2021 12:15 | February 25, 2021 13:45 | 1h 30m | 533 | 668 |
| 8 | October 17, 2021 19:15 | October 18, 2021 05:15 | 10h | 176 | 100 |
| 9 | November 29, 2021 18:45 | November 29, 2021 20:00 | 1h 15m | 172 | 113 |
| 10 | February 24, 2021 18:45 | February 24, 2021 19:00 | 15m | 171 | 43 |
Outage episodes by size in 2021: 15 reached 100+ customers, 4 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Williams County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Mountrail-Williams Elec Coop | - | - | - | - | - |
| Burke-Divide Electric Coop Inc | - | - | - | - | - |
| Sheridan Electric Coop, Inc | - | - | - | - | - |
| Lower Yellowstone R E A, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 66% of North Dakota's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,516 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Williams County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Williams County, ND annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/). https://massoutage.com/reports/2021/north-dakota/williams-county