County annual report · FIPS 06037
2015 Los Angeles County, CA Power Outage Report
In 2015, customers in Los Angeles County, CA went without power for an average of 5.4 hours, a total of 20.4M customer-hours (California average 3.1 hours). That ranks 3rd worst of 23 California counties and 513th of 2,484 nationally.
Compared with CA, the US
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Los Angeles 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 | August 21, 2015 05:15 | September 27, 2015 05:30 | 37d | 34,780 | 2.9M |
| 2 | May 10, 2015 13:45 | May 17, 2015 07:30 | 6d 17h | 33,471 | 297K |
| 3 | November 1, 2015 05:00 | November 18, 2015 15:00 | 17d 10h | 24,354 | 1.5M |
| 4 | September 27, 2015 06:45 | November 1, 2015 04:00 | 34d 21h | 24,139 | 2.8M |
| 5 | June 7, 2015 02:15 | June 29, 2015 09:00 | 22d 6h | 21,912 | 1.2M |
| 6 | November 18, 2015 15:45 | December 15, 2015 20:15 | 27d 4h | 21,119 | 1.7M |
| 7 | August 5, 2015 04:30 | August 21, 2015 04:00 | 15d 23h | 18,819 | 828K |
| 8 | June 29, 2015 11:00 | July 7, 2015 01:45 | 7d 14h | 17,688 | 458K |
| 9 | July 7, 2015 03:15 | July 19, 2015 01:45 | 11d 22h | 17,643 | 933K |
| 10 | July 19, 2015 03:00 | August 4, 2015 17:45 | 16d 14h | 17,260 | 1.0M |
Outage episodes by size in 2015: 37 reached 100+ customers, 35 reached 1,000+ customers, 14 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 Los Angeles 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 |
| Los Angeles Department of Water & Power | 2015 | 1.5 hrs | 0.74 | 1.5 hrs | 0.74 |
| City of Pasadena - (CA) | 2015 | 77 min | 0.32 | - | - |
| City of Vernon | 2013 | 42 min | 0.77 | 37 min | 0.46 |
| City of Azusa | - | - | - | - | - |
| City of Burbank Water and Power | - | - | - | - | - |
| City of Glendale - (CA) | - | - | - | - | - |
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 California's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,762,600 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. Los Angeles County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Los Angeles County, CA 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/california/los-angeles-county