County annual report · FIPS 30083
2017 Richland County, MT Power Outage Report
In 2017, customers in Richland County, MT went without power for an average of 2.0 hours, a total of 20K customer-hours (Montana average 2.7 hours). That ranks 5th worst of 19 Montana counties and 1628th of 2,786 nationally.
Compared with MT, the US
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Richland County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 1, 2017 02:45 | September 1, 2017 13:15 | 10h 30m | 2,682 | 13K |
| 2 | October 21, 2017 04:00 | October 21, 2017 11:30 | 7h 30m | 2,085 | 1,402 |
| 3 | October 19, 2017 15:15 | October 19, 2017 16:15 | 1h | 2,059 | 1,035 |
| 4 | November 26, 2017 18:30 | November 26, 2017 19:00 | 30m | 374 | 96 |
| 5 | March 7, 2017 18:00 | March 8, 2017 11:45 | 17h 45m | 306 | 673 |
| 6 | October 6, 2017 16:00 | October 7, 2017 02:45 | 10h 45m | 144 | 1,282 |
| 7 | September 16, 2017 22:00 | September 17, 2017 01:30 | 3h 30m | 108 | 149 |
| 8 | November 13, 2017 21:30 | November 13, 2017 22:30 | 1h | 85 | 47 |
| 9 | October 26, 2017 20:15 | October 26, 2017 22:30 | 2h 15m | 83 | 187 |
| 10 | May 13, 2017 11:45 | May 15, 2017 09:15 | 1d 21h | 69 | 421 |
Outage episodes by size in 2017: 7 reached 100+ customers, 3 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 Richland County reported on EIA Form 861 for 2017, 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 | 2017 | 4.0 hrs | 1.52 | 2.5 hrs | 1.19 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| McCone 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 n/a of Montana's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,805 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. Richland County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Richland County, MT annual power outage report, 2017, 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/2017/montana/richland-county