County annual report · FIPS 32510
2021 Carson City, NV Power Outage Report
In 2021, customers in Carson City, NV went without power for an average of 0.9 hours, a total of 28K customer-hours (Nevada average 1.7 hours). That ranks 14th worst of 15 Nevada counties and 2701st of 2,974 nationally.
Compared with NV, the US and 2020
Coverage line is EAGLE-I's share of Nevada customers tracked each year.
Biggest outages in Carson City, 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 | July 3, 2021 00:30 | July 3, 2021 07:00 | 6h 30m | 2,313 | 2,318 |
| 2 | July 4, 2021 00:00 | July 4, 2021 10:30 | 10h 30m | 2,313 | 4,765 |
| 3 | December 28, 2021 04:45 | December 28, 2021 06:15 | 1h 30m | 643 | 965 |
| 4 | December 14, 2021 04:30 | December 16, 2021 23:15 | 2d 18h | 628 | 3,234 |
| 5 | August 27, 2021 16:30 | August 27, 2021 16:45 | 15m | 581 | 145 |
| 6 | June 27, 2021 20:15 | June 28, 2021 06:45 | 10h 30m | 339 | 2,197 |
| 7 | December 3, 2021 08:45 | December 3, 2021 09:15 | 30m | 302 | 151 |
| 8 | November 4, 2021 17:45 | November 4, 2021 20:45 | 3h | 259 | 478 |
| 9 | July 8, 2021 07:45 | July 8, 2021 08:30 | 45m | 242 | 182 |
| 10 | July 2, 2021 01:45 | July 2, 2021 03:30 | 1h 45m | 234 | 312 |
Outage episodes by size in 2021: 21 reached 100+ customers, 2 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 Carson City 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 |
|---|---|---|---|---|---|
| Sierra Pacific Power Co | 2021 | 2.7 hrs | 1.28 | 2.0 hrs | 1.03 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 97% of Nevada's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 30,607 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. Carson City has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Carson City, NV 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/nevada/carson-city