County annual report · FIPS 32003
2020 Clark County, NV Power Outage Report
In 2020, customers in Clark County, NV went without power for an average of 0.9 hours, a total of 870K customer-hours (Nevada average 1.2 hours). That ranks 14th worst of 16 Nevada counties and 2713th 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 Clark 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 | May 12, 2020 15:15 | May 15, 2020 03:45 | 2d 12h | 17,341 | 12K |
| 2 | November 17, 2020 18:15 | November 19, 2020 15:30 | 1d 21h | 15,572 | 14K |
| 3 | September 26, 2020 12:30 | September 26, 2020 14:15 | 1h 45m | 13,097 | 16K |
| 4 | October 22, 2020 14:45 | October 27, 2020 07:45 | 4d 17h | 11,910 | 39K |
| 5 | April 29, 2020 09:00 | April 29, 2020 12:45 | 3h 45m | 9,119 | 12K |
| 6 | July 31, 2020 02:15 | August 1, 2020 18:00 | 1d 15h | 8,569 | 39K |
| 7 | September 8, 2020 13:00 | September 10, 2020 11:00 | 1d 22h | 7,912 | 25K |
| 8 | February 3, 2020 00:30 | February 4, 2020 02:30 | 1d 2h | 7,190 | 52K |
| 9 | May 26, 2020 12:45 | May 27, 2020 05:00 | 16h 15m | 6,789 | 11K |
| 10 | January 16, 2020 15:30 | January 17, 2020 01:00 | 9h 30m | 5,070 | 4,974 |
Outage episodes by size in 2020: 293 reached 100+ customers, 109 reached 1,000+ customers, 4 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 Clark 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 |
|---|---|---|---|---|---|
| Southern California Edison Co | 2020 | 3.4 hrs | 1.06 | 1.5 hrs | 0.87 |
| Valley Electric Assn, Inc | 2020 | 68 min | 0.89 | 32 min | 0.57 |
| Nevada Power Co | 2020 | 52 min | 0.52 | 40 min | 0.43 |
| Overton Power District No 5 | 2020 | 36 min | 0.50 | 36 min | 0.50 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| NV Energy | - | - | - | - | - |
| Aha Macav Power Service | - | - | - | - | - |
| City of Boulder City - (NV) | - | - | - | - | - |
| Colorado River Comm of Nevada | - | - | - | - | - |
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 ÷ 1,008,802 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. Clark County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clark 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/clark-county