County annual report · FIPS 32031
2020 Washoe County, NV Power Outage Report
In 2020, customers in Washoe County, NV went without power for an average of 2.0 hours, a total of 487K customer-hours (Nevada average 1.2 hours). That ranks 9th worst of 16 Nevada counties and 2255th of 3,019 nationally.
Compared with NV, the US and 2019
Coverage line is EAGLE-I's share of Nevada customers tracked each year.
Biggest outages in Washoe County, 2020
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 13, 2020 00:15 | July 13, 2020 04:15 | 4h | 9,597 | 8,670 |
| 2 | November 17, 2020 18:00 | November 19, 2020 14:15 | 1d 20h | 9,264 | 50K |
| 3 | June 27, 2020 14:30 | June 29, 2020 00:00 | 1d 9h | 8,471 | 31K |
| 4 | July 19, 2020 18:30 | July 23, 2020 05:00 | 3d 10h | 7,323 | 14K |
| 5 | September 13, 2020 16:30 | September 14, 2020 07:45 | 15h 15m | 7,250 | 30K |
| 6 | November 13, 2020 14:45 | November 14, 2020 06:45 | 16h | 6,375 | 18K |
| 7 | May 29, 2020 14:45 | May 30, 2020 01:45 | 11h | 5,793 | 5,946 |
| 8 | August 5, 2020 14:30 | August 6, 2020 05:15 | 14h 45m | 5,599 | 8,213 |
| 9 | July 28, 2020 08:45 | July 28, 2020 12:15 | 3h 30m | 5,270 | 13K |
| 10 | August 3, 2020 14:30 | August 4, 2020 03:15 | 12h 45m | 5,174 | 20K |
Outage episodes by size in 2020: 190 reached 100+ customers, 44 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 Washoe County reported on EIA Form 861 for 2020, 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 | 2020 | 2.2 hrs | 1.27 | 1.7 hrs | 1.00 |
| 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 96% of Nevada's customers in 2020; 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, 2020, 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/2020/nevada/washoe-county