County annual report · FIPS 32031
2023 Washoe County, NV Power Outage Report
In 2023, customers in Washoe County, NV went without power for an average of 6.6 hours, a total of 1.6M customer-hours (Nevada average 3.1 hours). That ranks 10th worst of 15 Nevada counties and 1195th of 2,977 nationally.
Compared with NV, the US and 2022
Coverage line is EAGLE-I's share of Nevada customers tracked each year.
Biggest outages in Washoe County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 1, 2023 00:00 | January 8, 2023 11:00 | 7d 11h | 49,287 | 1.1M |
| 2 | February 5, 2023 04:45 | February 5, 2023 13:45 | 9h | 10,774 | 33K |
| 3 | July 24, 2023 01:00 | July 24, 2023 05:30 | 4h 30m | 9,560 | 16K |
| 4 | October 16, 2023 19:30 | October 16, 2023 22:15 | 2h 45m | 8,658 | 2,167 |
| 5 | May 14, 2023 02:00 | May 14, 2023 10:30 | 8h 30m | 8,123 | 14K |
| 6 | July 5, 2023 12:00 | July 5, 2023 12:45 | 45m | 8,038 | 6,029 |
| 7 | September 29, 2023 16:30 | September 30, 2023 01:00 | 8h 30m | 6,433 | 32K |
| 8 | March 11, 2023 21:00 | March 11, 2023 22:30 | 1h 30m | 6,112 | 4,584 |
| 9 | January 27, 2023 15:00 | January 28, 2023 07:00 | 16h | 6,080 | 17K |
| 10 | March 18, 2023 21:30 | March 18, 2023 22:45 | 1h 15m | 6,076 | 7,595 |
Outage episodes by size in 2023: 207 reached 100+ customers, 59 reached 1,000+ customers, 2 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 Washoe County reported on EIA Form 861 for 2023, 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 | 2023 | 5.5 hrs | 1.81 | 2.7 hrs | 1.41 |
| NV Energy | - | - | - | - | - |
| Plumas-Sierra Rural Elec Coop | - | - | - | - | - |
| Surprise Valley Electrification | - | - | - | - | - |
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 Nevada's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 244,311 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. Washoe County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washoe County, NV annual power outage report, 2023, 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/2023/nevada/washoe-county