County annual report · FIPS 06051
2015 Mono County, CA Power Outage Report
In 2015, customers in Mono County, CA went without power for an average of 15.4 hours, a total of 85K customer-hours (California average 3.1 hours). That ranks 1st worst of 23 California counties and 161st 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 Mono 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 | December 13, 2015 22:00 | December 14, 2015 03:00 | 5h | 3,573 | 8,259 |
| 2 | March 16, 2015 18:00 | March 16, 2015 19:15 | 1h 15m | 2,078 | 1,826 |
| 3 | February 6, 2015 20:15 | February 11, 2015 08:00 | 4d 11h | 1,641 | 48K |
| 4 | June 30, 2015 22:45 | July 1, 2015 02:30 | 3h 45m | 1,285 | 1,960 |
| 5 | April 15, 2015 14:15 | April 16, 2015 00:30 | 10h 15m | 755 | 2,835 |
| 6 | July 2, 2015 21:30 | July 2, 2015 21:45 | 15m | 463 | 116 |
| 7 | August 11, 2015 13:30 | August 11, 2015 13:45 | 15m | 463 | 116 |
| 8 | October 17, 2015 22:00 | October 18, 2015 06:15 | 8h 15m | 411 | 1,150 |
| 9 | January 24, 2015 16:30 | January 24, 2015 20:00 | 3h 30m | 276 | 494 |
| 10 | July 15, 2015 00:45 | July 15, 2015 01:30 | 45m | 246 | 185 |
Outage episodes by size in 2015: 23 reached 100+ customers, 4 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 Mono 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 |
| Liberty Utilities | 2015 | 6.0 hrs | 2.01 | 6.0 hrs | 2.01 |
| Valley Electric Assn, Inc | 2015 | 2.6 hrs | 1.80 | 46 min | 0.78 |
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 ÷ 5,551 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. Mono County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mono 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/mono-county