County annual report · FIPS 35051
2018 Sierra County, NM Power Outage Report
In 2018, customers in Sierra County, NM went without power for an average of 0.1 hours, a total of 164 customer-hours (New Mexico average 1.8 hours). That ranks 24th worst of 26 New Mexico counties and 2689th of 2,798 nationally.
Compared with NM, the US and 2017
Coverage line is EAGLE-I's share of New Mexico customers tracked each year.
Biggest outages in Sierra County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 23, 2018 22:30 | August 23, 2018 23:00 | 30m | 48 | 13 |
| 2 | January 21, 2018 09:45 | January 21, 2018 13:15 | 3h 30m | 43 | 109 |
| 3 | February 16, 2018 19:45 | February 16, 2018 20:30 | 45m | 24 | 18 |
| 4 | May 25, 2018 16:00 | May 25, 2018 18:45 | 2h 45m | 6 | 4 |
| 5 | August 12, 2018 09:00 | August 12, 2018 12:45 | 3h 45m | 5 | 8 |
| 6 | August 24, 2018 15:00 | August 24, 2018 17:15 | 2h 15m | 2 | 2 |
| 7 | January 4, 2018 16:45 | January 4, 2018 18:15 | 1h 30m | 1 | 2 |
| 8 | April 13, 2018 21:45 | April 13, 2018 23:00 | 1h 15m | 1 | 1 |
| 9 | May 1, 2018 15:15 | May 1, 2018 17:15 | 2h | 1 | 2 |
| 10 | August 24, 2018 00:15 | August 24, 2018 01:00 | 45m | 1 | 1 |
Outage episodes by size in 2018: 0 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 Sierra County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| El Paso Electric Co | 2018 | 67 min | 0.84 | 67 min | 0.84 |
| Socorro Electric Coop, Inc | - | - | - | - | - |
| Sierra Electric Coop, Inc | - | - | - | - | - |
| City of Truth or Consequences - (NM) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 74% of New Mexico's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,974 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. Sierra County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sierra County, NM annual power outage report, 2018, 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/2018/new-mexico/sierra-county