County annual report · FIPS 30041
2022 Hill County, MT Power Outage Report
In 2022, customers in Hill County, MT went without power for an average of 2.9 hours, a total of 23K customer-hours (Montana average 3.5 hours). That ranks 30th worst of 50 Montana counties and 1978th of 2,976 nationally.
Compared with MT, the US and 2021
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Hill County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 2, 2022 13:30 | October 2, 2022 19:30 | 6h | 4,595 | 15K |
| 2 | April 6, 2022 03:15 | April 6, 2022 06:45 | 3h 30m | 855 | 1,968 |
| 3 | October 13, 2022 15:00 | October 13, 2022 16:30 | 1h 30m | 760 | 761 |
| 4 | July 9, 2022 02:15 | July 9, 2022 06:15 | 4h | 217 | 507 |
| 5 | October 23, 2022 10:00 | October 23, 2022 18:30 | 8h 30m | 216 | 654 |
| 6 | July 30, 2022 09:45 | July 30, 2022 13:45 | 4h | 215 | 860 |
| 7 | September 14, 2022 05:15 | September 14, 2022 06:30 | 1h 15m | 215 | 55 |
| 8 | November 5, 2022 17:00 | November 5, 2022 21:45 | 4h 45m | 215 | 280 |
| 9 | February 7, 2022 23:00 | February 8, 2022 01:15 | 2h 15m | 214 | 428 |
| 10 | August 28, 2022 13:45 | August 28, 2022 16:45 | 3h | 169 | 346 |
Outage episodes by size in 2022: 13 reached 100+ customers, 1 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 Hill County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| NorthWestern Energy LLC - (MT) | 2022 | 2.2 hrs | 1.14 | 2.0 hrs | 1.09 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Hill County Electric Coop, 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 76% of Montana's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,876 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. Hill County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Hill County, MT annual power outage report, 2022, 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/2022/montana/hill-county