County annual report · FIPS 32003
2015 Clark County, NV Power Outage Report
In 2015, customers in Clark County, NV went without power for an average of 0.4 hours, a total of 421K customer-hours (Nevada average 1.0 hours). That ranks 14th worst of 15 Nevada counties and 2119th of 2,484 nationally.
Compared with NV, the US
Coverage line is EAGLE-I's share of Nevada customers tracked each year.
Biggest outages in Clark County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 12, 2015 14:00 | October 13, 2015 20:30 | 1d 6h | 13,566 | 12K |
| 2 | August 5, 2015 11:45 | August 6, 2015 13:30 | 1d 1h | 13,460 | 10K |
| 3 | September 12, 2015 10:00 | September 13, 2015 07:30 | 21h 30m | 11,129 | 9,942 |
| 4 | August 13, 2015 13:15 | August 18, 2015 12:45 | 4d 23h | 10,837 | 127K |
| 5 | August 23, 2015 03:00 | August 24, 2015 18:00 | 1d 15h | 9,152 | 6,681 |
| 6 | September 6, 2015 10:45 | September 6, 2015 13:00 | 2h 15m | 5,105 | 3,754 |
| 7 | August 30, 2015 21:15 | August 31, 2015 09:45 | 12h 30m | 5,074 | 2,957 |
| 8 | June 20, 2015 09:15 | June 24, 2015 10:30 | 4d 1h | 4,076 | 31K |
| 9 | November 15, 2015 23:15 | November 17, 2015 09:30 | 1d 10h | 3,507 | 9,017 |
| 10 | June 29, 2015 13:00 | July 4, 2015 13:15 | 5d | 3,293 | 15K |
Outage episodes by size in 2015: 136 reached 100+ customers, 38 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 2015, 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 | 2015 | 1.9 hrs | 0.92 | 1.7 hrs | 0.86 |
| Valley Electric Assn, Inc | 2015 | 2.6 hrs | 1.80 | 46 min | 0.78 |
| Nevada Power Co | 2015 | 43 min | 0.43 | 32 min | 0.37 |
| Overton Power District No 5 | 2015 | 27 min | 0.38 | - | - |
| 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 n/a of Nevada's customers in 2015; 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, 2015, 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/2015/nevada/clark-county