County annual report · FIPS 38057
2021 Mercer County, ND Power Outage Report
In 2021, customers in Mercer County, ND went without power for an average of 0.1 hours, a total of 603 customer-hours (North Dakota average 1.0 hours). That ranks 47th worst of 51 North Dakota counties and 2920th 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 Mercer 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 | June 6, 2021 08:45 | June 6, 2021 09:00 | 15m | 354 | 89 |
| 2 | February 13, 2021 13:30 | February 13, 2021 17:45 | 4h 15m | 246 | 309 |
| 3 | October 30, 2021 03:30 | October 30, 2021 04:00 | 30m | 152 | 76 |
| 4 | February 3, 2021 12:30 | February 3, 2021 18:00 | 5h 30m | 53 | 80 |
| 5 | August 1, 2021 19:30 | August 1, 2021 19:45 | 15m | 16 | 4 |
| 6 | April 11, 2021 22:15 | April 11, 2021 23:15 | 1h | 11 | 11 |
| 7 | May 14, 2021 18:00 | May 14, 2021 19:30 | 1h 30m | 6 | 9 |
| 8 | March 3, 2021 18:30 | March 3, 2021 20:00 | 1h 30m | 5 | 8 |
| 9 | March 22, 2021 19:00 | March 22, 2021 19:30 | 30m | 5 | 3 |
| 10 | April 6, 2021 18:30 | April 6, 2021 20:00 | 1h 30m | 5 | 8 |
Outage episodes by size in 2021: 3 reached 100+ customers, 0 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 Mercer 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 |
|---|---|---|---|---|---|
| McKenzie Electric Coop Inc | 2021 | 2.7 hrs | 1.42 | 2.7 hrs | 1.42 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Roughrider Electric Cooperativ | - | - | - | - | - |
| Mor-Gran-Sou Electric Coop Inc | - | - | - | - | - |
| Basin Electric Power Coop | - | - | - | - | - |
| City of Stanton - (ND) | - | - | - | - | - |
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 ÷ 6,015 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. Mercer County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Mercer 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/north-dakota/mercer-county